-
POWERTECH 8.1 LDiesel Engines
Base Engine
TECHNICAL MANUALPOWERTECH 8.1 L Diesel Engines
Base EngineCTM86 06JUL06 (ENGLISH)
For complete service information also see:POWERTECH 8.1 L
DieselEnginesMechanical Fuel Systems . . . . . . CTM243POWERTECH
6.8 L & 8.1 L DieselEnginesLevel 3 Electronic Fuel Systemswith
Bosch In-Line Pump . . . . . . . . . . . . . . . CTM134POWERTECH
8.1 L Diesel EnginesLevel 9Electronic Fuel Systems with Denso
In-LinePump . . . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . CTM255Electronic Fuel Injection Systems . . . . . . . .
CTM68OEM Engine Accessories . . . . . . . . . . . . . . .
CTM67Alternators and Starting Motors . . . . . . . . . . CTM77
John Deere Power SystemsLITHO IN U.S.A.
-
Introduction
DPSG,OUO1004,912 1915JUN991/1
Foreword
This manual is written for an experienced technician.Essential
tools required in performing certain servicework are identified in
this manual and arerecommended for use.
This manual (CTM86) covers only the base engine. Itis one of
five volumes on 8.1 L engines. The followingfour companion manuals
cover fuel system repair anddiagnostics:
CTM243Mechanical Fuel Systems CTM134Level 3 Electronic Fuel
Systems CTM255Level 9 Electronic Fuel Systems CTM68Electronic
Injection Fuel Systems
Other manuals will be added in the future to provideadditional
information on electronic fuel systems asneeded.
This manual covers the base engine for all 8.1Lengines,
including emission non-certified, Tier Icertified, and Tier II
certified (esn 200,000 ).
Live with safety: Read the safety messages in theintroduction of
this manual and the cautions presentedthroughout the text of the
manual.
This is the safety-alert symbol. When you see thissymbol on the
machine or in this manual, be alert tothe potential for personal
injury.
Use this component technical manual in conjunctionwith the
machine technical manual. An applicationlisting in the introduction
identifiesengine-models/applications. See the machine
technicalmanual for information on engine removal andinstallation,
and gaining access to engine components.
Information is organized in sections and groups for thevarious
components requiring service instruction. Atthe end of the book are
summary listings of all
applicable essential tools, service equipment, andother
materials needed to do the job, service parts kits,specifications,
wear tolerance, and torque values.
Before beginning repair on an engine, clean the engineand mount
on a repair stand. (See CLEAN ENGINE inGroup 010 and see MOUNT
ENGINE ON REPAIRSTAND in Group 010..)
This manual contains SI Metric units of measurefollowed
immediately by the U.S. Customary units ofmeasure. Most hardware on
these engines is metricsized.
Some components of this engine may be servicedwithout removing
the engine from the machine. Referto the specific machine technical
manual forinformation on components that can be servicedwithout
removing the engine from the machine and forengine removal and
installation procedures.
Read each block of material completely beforeperforming service
to check for differences inprocedures that apply to the engine
model number youare working on. If only one procedure is given,
thatprocedure applies to all the engines in the manual.
Component Technical Manuals are concise serviceguides for
specific components. Component technicalmanuals are written as
stand-alone manuals coveringmultiple machine applications.
Fundamental service information is available fromother sources
covering basic theory of operation,fundamentals of troubleshooting,
general maintenance,and basic types of failures and their
causes.
CALIFORNIA PROPOSITION 65 WARNING: Dieselengine exhaust and some
of its constituents areknown to the State of California to cause
cancer,birth defects, and other reproductive harm.
CTM86 (06JUL06) POWERTECH 8.1 L Diesel Engines Base
Engine071706
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Introduction
DPSG,OUO1004,898 1919MAY991/2
John Deere Dealers
The changes listed below make your CTM obsolete.Repair,
operation, and diagnostics are now covered infive manuals. Discard
CTM86 dated 06JUL99 andreplace with the following new manuals:
CTM86Base Engine CTM243Mechanical Fuel Systems CTM134Level 3
Electronic Fuel Systems CTM255Level 9 Electronic Fuel Systems
CTM68Electronic Fuel Injection Systems
Also, copy these pages and route through your
ServiceDepartment.
SECTION 01, GROUP 001 (Engine Identification)
Updated engine model designation chart. Updated engine
application charts.
SECTION 01, GROUP 002 (Fuels, Lubricants, andCoolants)
Updated engine oil and coolant applicationguidelines.
SECTION 02, GROUP 010 (Engine Rebuild)
Updated engine disassembly sequence. Updated engine assembly
sequence. Updated sealant application guidelines.
SECTION 02, GROUP 020 (Cylinder Head andValves Repair and
Adjustment Serial Number( 199,999)
Repair procedures for cylinder head and valves onengines with
serial number ( 199,999) are coveredin this group.
SECTION 02, GROUP 021 (Cylinder Head andValves Repair and
Adjustment Serial Number(200,000 )
Repair procedures for cylinder head and valves onengines with
serial number (200,000 ) are coveredin this group.
SECTION 02, GROUP 050 (Camshaft and TimingGear Train Repair and
Adjustment)
Eliminated procedure to check valve lift. Useappropriate
procedure from Group 020 or Group021.
Revised specifications for installation of crankshaftgear-driven
auxiliary drive.
Revised procedure for installation of thrust washerand timing
gear cover.
SECTION 02, GROUP 060 (Lubrication SystemRepair and
Adjustment)
Added information for top-load oil filter.
SECTION 02, GROUP 070 (Cooling System Repairand Adjustment)
Added belt routing diagrams. Revised procedure for installation
of coolant pump.
SECTION 02, GROUP 080 (Air Intake and ExhaustSystem Repair and
Adjustments)
Revised procedure for turbocharger inspectiontechniques.
Eliminated procedure for adjusting turbochargerwastegate
actuator.
Revised specifications for installing turbocharger.
SECTION 02, GROUP 090 (Fuel System Repair andAdjustments)
NOTE: Repair procedures for fuel systems have beenhave been
moved to Section 02, Group 090 inthe three following technical
manuals:
CTM243Mechanical Fuel Systems CTM134Level 3 Electronic Fuel
Systems CTM255Level 9 Electronic Fuel Systems
SECTION 02, GROUP 100 (OEM Starting andCharging Systems)
CTM86 (06JUL06) POWERTECH 8.1 L Diesel Engines Base
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Introduction
DPSG,OUO1004,898 1919MAY992/2
Starting and charging systems are covered in thisnew group.
SECTION 03, GROUP 120 (Base Engine Operation)
Base engine theory of operation is covered in thisnew group.
NOTE: Fuel system theory of operation has beenmoved to Section
03 in the three followingtechnical manuals:
CTM243Mechanical Fuel Systems CTM134Level 3 Electronic Fuel
Systems CTM255Level 9 Electronic Fuel Systems
SECTION 04, GROUP 150 (Observable Diagnosticsand Tests)
Base engine observable diagnostics and tests arecovered in this
new section/group.
NOTE: Fuel system diagnostics and testing has beenmoved to
Section 04 in the three followingtechnical manuals:
CTM243Mechanical Fuel Systems CTM134Level 3 Electronic Fuel
Systems CTM255Level 9 Electronic Fuel Systems
SECTION 05 (Tools and Other Materials)
All essential tools, service tools, dealer fabricatedtools, and
other materials listed throughout thismanual are consolidated in
this section for ease ofreference.
SECTION 06 (Specifications)
All repair, test, and diagnostic specifications listedthroughout
this manual are consolidated in thissection for ease of
reference.
Updated bolt and cap screw torque values. Updated General OEM
specifications. Updated dynamometer specifications. Updated
turbocharger boost specifications
CTM86 (06JUL06) POWERTECH 8.1 L Diesel Engines Base
Engine071706
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Introduction
DPSG,OUO1004,913 1915JUN991/1
About this Manual
This component technical manual (CTM) covers the baseengine for
POWERTECH 8.1 L (494 cu. in.) diesel enginesproduced in Waterloo,
Iowa. This manuals coverageincludes: emissions non-certified,
emissions certified TierI, and emissions certified Tier II (esn
200,000 ) engines
This manual is a complete revision of CTM86(06JUL99). Replace
earlier manual with the following newmanuals:
CTM86 POWERTECH 8.1 L Diesel EnginesBaseEngine
CTM243 POWERTECH 8.1 L Diesel EnginesMechanical Fuel Systems
CTM134 POWERTECH 6.8 L & 8.1 L DieselEnginesLevel 3
Electronic Fuel Systems with BoschIn-Line Pump
CTM255 8.1 L Diesel EnginesLevel 9 ElectronicFuel Systems with
Denso In-Line Pump
CTM68 Electronic Fuel Injection Systems
Direction of engine crankshaft rotation in this manual
isreferenced as clockwise, as viewed from the rear of theengine.
Front of engine is fan drive end.
Read each procedure completely before performing anyservice.
IMPORTANT: For repair, diagnostics, and testingprocedures on the
fuel system, refer tothe companion manuals:
CTM243 POWERTECH 8.1 L DieselEnginesMechanical Fuel Systems
CTM134 POWERTECH 6.8 L & 8.1 LDiesel EnginesLevel 3
ElectronicFuel Systems with Bosch In-LinePump
CTM255 8.1 L Diesel EnginesLevel 9 Electronic Fuel Systems
withDenso In-Line Pump
CTM68 Electronic Fuel InjectionSystems
POWERTECH is a registered trademark of Deere & Company
CTM86 (06JUL06) POWERTECH 8.1 L Diesel Engines Base
Engine071706
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Introduction
RG,RG34710,4001 1914DEC001/2
Identification Views Serial Number ( 199,999) Non Emissions
Certified, and Tier IEmissions Certified Engines
RG
7362
UN
05J
AN98
8.1 L Diesel Engine Right Front View (Engines 199,999)
RG
7363
UN
05J
AN98
8.1 L Diesel Engines Left Front View (Engines 199,999)
RG
7385
UN
05J
AN98
8.1 L Diesel Engines Right Side View (Engines 199,999)
RG
7387
UN
05J
AN98
8.1 L Diesel Engines Left Side View (Engines 199,999)
CTM86 (06JUL06) POWERTECH 8.1 L Diesel Engines Base
Engine071706
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Introduction
RG,RG34710,4001 1914DEC002/2
RG
7388
UN
20J
UN00
8.1 L Diesel Engine Right Front View (Engines 199,999)
RG
7386
UN
20J
UN00
8.1 L Diesel Engine Left Front View (Engines 199,999)
RG
7383
UN
05J
AN98
8.1 L Diesel Engine Front View (Engines 199,999)
RG
7384
UN
05J
AN98
8.1 L Diesel Engine Rear View (Engines 199,999)
CTM86 (06JUL06) POWERTECH 8.1 L Diesel Engines Base
Engine071706
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Introduction
RG,OUOD007,4002 1901NOV001/1
Identification Views Serial Number (200,000 ) Tier II Emissions
Certified Engines
RG
1151
1UN
13D
EC00
8.1 L Diesel Engine Right Front View (Engines 200,000 )
RG
1151
2UN
31O
CT00
8.1 L Diesel Engines Left Front View (Engines 200,000 )
RG
1151
3UN
31O
CT00
8.1 L Diesel Engine Front View (Engines 200,000 )
RG
1151
4UN
31O
CT00
8.1 L Diesel Engine Rear View (Engines 200,000 )
CTM86 (06JUL06) POWERTECH 8.1 L Diesel Engines Base
Engine071706
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Contents01
SECTION 01GeneralGroup 000SafetyGroup 001Engine
IdentificationGroup 002Fuels, Lubricants and Coolant
02SECTION 02Repair and AdjustmentsGroup 010Engine RebuildGroup
020Cylinder Head and Valves Repair and
Adjustment S. N. ( 199,999)Group 021Cylinder Head and Valves
Repair and
Adjustment S. N. (200,000 )Group 030Cylinder Block, Liners,
Pistons, and
Rods Repair and AdjustmentGroup 040Crankshaft, Main Bearings
and
Flywheel Repair and AdjustmentGroup 050Camshaft and Timing Gear
Train
03
Repair and AdjustmentGroup 060Lubrication System Repair and
AdjustmentGroup 070Cooling System Repair and AdjustmentGroup
080Air Intake and Exhaust System Repair
and AdjustmentGroup 100OEM Starting and Charging Systems
Repair and Adjustment
SECTION 03Theory of OperationGroup 120Base Engine Operation
04
SECTION 04DiagnosticsGroup 150Observable Diagnostics and
Tests
SECTION 05Tools and Other MaterialsGroup 170Repair Tools and
Other MaterialsGroup 180Diagnostic Service ToolsGroup 190Dealer
Fabricated Service Tools
SECTION 06SpecificationsGroup 200Repair and General OEM
05
SpecificationsGroup 210Diagnostic Specifications
All information, illustrations and specifications in this manual
are based onthe latest information available at the time of
publication. The right isreserved to make changes at any time
without notice.
06
COPYRIGHT 2005DEERE & COMPANY
Moline, IllinoisAll rights reserved
A John Deere ILLUSTRUCTION ManualPrevious Editions
Copyright 1994,1997,1999, 2001, 2003, 2004
INDX
CTM86 (06JUL06) i POWERTECH 8.1 L Diesel Engines Base
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Contents
01
02
03
04
05
06
INDX
CTM86 (06JUL06) ii POWERTECH 8.1 L Diesel Engines Base
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01
Section 01General
Contents
Page
Group 000Safety . . . . . . . . . . . . . . . . . . .
.01-000-1
Group 001Engine IdentificationEngine Model Designation. . . . .
. . . . . . . . . . .01-001-1Engine Serial Number Plate Information
. . . . .01-001-2Engine Option Code Label . . . . . . . . . . . . .
. .01-001-3Engine Application Chart (John Deere
Agricultural Equipment) . . . . . . . . . . . . . . .
.01-001-3Engine Application Chart (John Deere
Construction Equipment) . . . . . . . . . . . . . .
.01-001-6Engine Application Chart (OEM) (Outside
Equipment Manufacturers) . . . . . . . . . . . . . .01-001-6
Group 002Fuels, Lubricants and CoolantDiesel Fuel . . . . . . .
. . . . . . . . . . . . . . . . . . . .01-002-1Bio-Diesel Fuel . .
. . . . . . . . . . . . . . . . . . . . . .01-002-2Lubricity of
Diesel Fuel . . . . . . . . . . . . . . . . . .01-002-2Testing
Diesel Fuel . . . . . . . . . . . . . . . . . . . . .01-002-3Diesel
Engine Break-In Oil . . . . . . . . . . . . . . .01-002-3Diesel
Engine Oil . . . . . . . . . . . . . . . . . . . . .
.01-002-4Extended Diesel Engine Oil Service
Intervals. . . . . . . . . . . . . . . . . . . . . . . . . . .
.01-002-5Alternative and Synthetic Lubricants . . . . . . .
.01-002-5Mixing of Lubricants . . . . . . . . . . . . . . . . . . .
.01-002-6Oilscan and Coolscan . . . . . . . . . . . . . . . . . .
.01-002-6Grease . . . . . . . . . . . . . . . . . . . . . . . . . .
. . . .01-002-7Diesel Engine Coolant. . . . . . . . . . . . . . . .
. . .01-002-8Diesel Engine Coolants, Supplemental
Additive Information . . . . . . . . . . . . . . . . .
.01-002-10Testing Diesel Engine Coolant . . . . . . . . . .
.01-002-11Replenishing Supplemental Coolant
Additives (SCAs) Between CoolantChanges . . . . . . . . . . . .
. . . . . . . . . . . . . .01-002-12
Operating in Warm Temperature Climates . .01-002-13Flush and
Service Cooling System . . . . . . . .01-002-14Disposing of Coolant
. . . . . . . . . . . . . . . . . . .01-002-15
CTM86 (06JUL06) 01-1 POWERTECH 8.1 L Diesel Engines Base
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Contents
01
CTM86 (06JUL06) 01-2 POWERTECH 8.1 L Diesel Engines Base
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Group 000Safety
010001
DX,FLAME 1929SEP981/1
Handle Fluids SafelyAvoid Fires
TS22
7
UN2
3AUG
88
When you work around fuel, do not smoke or work nearheaters or
other fire hazards.
Store flammable fluids away from fire hazards. Do notincinerate
or puncture pressurized containers.
Make sure machine is clean of trash, grease, and debris.
Do not store oily rags; they can ignite and
burnspontaneously.
DX,FIRE3 1916APR921/1
Handle Starting Fluid Safely
TS13
56UN
18M
AR92
Starting fluid is highly flammable.
Keep all sparks and flame away when using it. Keepstarting fluid
away from batteries and cables.
To prevent accidental discharge when storing thepressurized can,
keep the cap on the container, and storein a cool, protected
location.
Do not incinerate or puncture a starting fluid container.
CTM86 (06JUL06) 01-000-1 POWERTECH 8.1 L Diesel Engines Base
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Safety
01000
2
DPSG,OUO1004,2758 1922DEC051/2
Handling Batteries Safely
TS20
4UN
23A
UG88
TS20
3UN
23A
UG88
Continued on next page
CTM86 (06JUL06) 01-000-2 POWERTECH 8.1 L Diesel Engines Base
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Safety
010003
DPSG,OUO1004,2758 1922DEC052/2
CAUTION: Battery gas can explode. Keepsparks and flames away
from batteries. Use aflashlight to check battery electrolyte
level.
Never check battery charge by placing a metalobject across the
posts. Use a voltmeter orhydrometer.
Always remove grounded (-) battery clamp firstand replace it
last.
Do not charge a frozen battery; it may explode.Warm battery to
16 C (60 F).
CAUTION: Sulfuric acid in battery electrolyte ispoisonous. It is
strong enough to burn skin, eatholes in clothing, and cause
blindness ifsplashed into eyes.
Avoid the hazard by:
1. Filling batteries in a well-ventilated area.2. Wearing eye
protection and rubber gloves.3. Avoiding breathing fumes when
electrolyte is
added.4. Avoiding spilling or dripping electrolyte.5. Use proper
jump start procedure.
If you spill acid on yourself:
1. Flush your skin with water.2. Apply baking soda or lime to
help neutralize
the acid.3. Flush your eyes with water for 1530
minutes. Get medical attention immediately.
If acid is swallowed:
1. Do not induce vomiting.2. Drink large amounts of water or
milk, but do
not exceed 2 L (2 quarts).3. Get medical attention
immediately.
WARNING: Battery posts, terminals, and relatedaccessories
contain lead and lead compounds, chemicalsknown to the State of
California to cause cancer andreproductive harm. Wash hands after
handling.
CTM86 (06JUL06) 01-000-3 POWERTECH 8.1 L Diesel Engines Base
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Safety
01000
4
DX,FIRE2 1903MAR931/1
Prepare for Emergencies
TS29
1UN
23A
UG88
Be prepared if a fire starts.
Keep a first aid kit and fire extinguisher handy.
Keep emergency numbers for doctors, ambulance service,hospital,
and fire department near your telephone.
DX,FLUID 1903MAR931/1
Avoid High-Pressure Fluids
X981
1UN
23A
UG88
Escaping fluid under pressure can penetrate the skincausing
serious injury.
Avoid the hazard by relieving pressure beforedisconnecting
hydraulic or other lines. Tighten allconnections before applying
pressure.
Search for leaks with a piece of cardboard. Protect handsand
body from high pressure fluids.
If an accident occurs, see a doctor immediately. Any
fluidinjected into the skin must be surgically removed within afew
hours or gangrene may result. Doctors unfamiliar withthis type of
injury should reference a knowledgeablemedical source. Such
information is available from Deere& Company Medical Department
in Moline, Illinois, U.S.A.
CTM86 (06JUL06) 01-000-4 POWERTECH 8.1 L Diesel Engines Base
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Safety
010005
DX,WEAR 1910SEP901/1
Wear Protective Clothing
TS20
6
UN2
3AUG
88
Wear close fitting clothing and safety equipmentappropriate to
the job.
Prolonged exposure to loud noise can cause impairmentor loss of
hearing.
Wear a suitable hearing protective device such asearmuffs or
earplugs to protect against objectionable oruncomfortable loud
noises.
Operating equipment safely requires the full attention ofthe
operator. Do not wear radio or music headphoneswhile operating
machine.
DX,LOOSE 1904JUN901/1
Service Machines Safely
TS22
8UN
23A
UG88
Tie long hair behind your head. Do not wear a necktie,scarf,
loose clothing, or necklace when you work nearmachine tools or
moving parts. If these items were to getcaught, severe injury could
result.
Remove rings and other jewelry to prevent electricalshorts and
entanglement in moving parts.
DX,AIR 1917FEB991/1
Work In Ventilated Area
TS22
0UN
23A
UG88
Engine exhaust fumes can cause sickness or death. If it
isnecessary to run an engine in an enclosed area, removethe exhaust
fumes from the area with an exhaust pipeextension.
If you do not have an exhaust pipe extension, open thedoors and
get outside air into the area
CTM86 (06JUL06) 01-000-5 POWERTECH 8.1 L Diesel Engines Base
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Safety
01000
6
DX,CLEAN 1904JUN901/1
Work in Clean Area
T664
2EJ
UN
18O
CT88
Before starting a job:
Clean work area and machine. Make sure you have all necessary
tools to do your job. Have the right parts on hand. Read all
instructions thoroughly; do not attempt
shortcuts.
OUOD006,000009D 1904DEC021/1
Install Fan Guards
TS67
7UN
21S
EP89
Rotating Fan
Rotating cooling system fans can cause serious injury.
Keep fan guards in place at all times during engineoperation.
Wear close fitting clothes. Stop the engine andbe sure fan is
stopped before making adjustments orconnections, or cleaning near
the front of the engine.
OUOD006,000009E 1904DEC021/1
Avoid Hot Parts
TS27
1UN
23A
UG88
Hot Surface
Avoid skin contact with exhaust manifolds, turbochargersand
mufflers. Keep flammable materials clear of theturbocharger.
External dry exhaust parts become very hot duringoperation.
Turbochargers may reach temperatures as highas 500 C (932 F) under
full load, and naturally aspiredexhaust manifolds may reach 600 C
(1112 F) under fullload. This may ignite paper, cloth or wooden
materials.Parts on engines that have been at full load and
reducedto no load idle will maintain approximately 150 C (302
F).
CTM86 (06JUL06) 01-000-6 POWERTECH 8.1 L Diesel Engines Base
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Safety
010007
DX,PAINT 1924JUL021/1
Remove Paint Before Welding or Heating
TS22
0
UN2
3AUG
88
Avoid potentially toxic fumes and dust.
Hazardous fumes can be generated when paint is heatedby welding,
soldering, or using a torch.
Remove paint before heating:
Remove paint a minimum of 100 mm (4 in.) from areato be affected
by heating. If paint cannot be removed,wear an approved respirator
before heating or welding.
If you sand or grind paint, avoid breathing the dust.Wear an
approved respirator.
If you use solvent or paint stripper, remove stripper withsoap
and water before welding. Remove solvent orpaint stripper
containers and other flammable materialfrom area. Allow fumes to
disperse at least 15 minutesbefore welding or heating.
Do not use a chlorinated solvent in areas where weldingwill take
place.
Do all work in an area that is well ventilated to carry
toxicfumes and dust away.
Dispose of paint and solvent properly.
DX,TORCH 1910DEC041/1
Avoid Heating Near Pressurized Fluid Lines
TS95
3UN
15M
AY90
Flammable spray can be generated by heating nearpressurized
fluid lines, resulting in severe burns toyourself and bystanders.
Do not heat by welding,soldering, or using a torch near pressurized
fluid lines orother flammable materials. Pressurized lines
canaccidentally burst when heat goes beyond the immediateflame
area.
CTM86 (06JUL06) 01-000-7 POWERTECH 8.1 L Diesel Engines Base
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Safety
01000
8
DX,LIGHT 1904JUN901/1
Illuminate Work Area Safely
TS22
3UN
23A
UG88
Illuminate your work area adequately but safely. Use aportable
safety light for working inside or under themachine. Make sure the
bulb is enclosed by a wire cage.The hot filament of an accidentally
broken bulb can ignitespilled fuel or oil.
DX,LIFT 1904JUN901/1
Use Proper Lifting Equipment
TS22
6UN
23A
UG88
Lifting heavy components incorrectly can cause severeinjury or
machine damage.
Follow recommended procedure for removal andinstallation of
components in the manual.
DPSG,OUO1004,899 1919MAY991/1
Construct Dealer-Made Tools Safely
LX10
1674
9UN
01J
UL97
Construct Dealer-Made Tools Safely
Faulty or broken tools can result in serious injury.
Whenconstructing tools, use proper, quality materials and
goodworkmanship.
Do not weld tools unless you have the proper equipmentand
experience to perform the job.
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Safety
010009
DX,SERV 1917FEB991/1
Practice Safe Maintenance
TS21
8UN
23A
UG88
Understand service procedure before doing work. Keeparea clean
and dry.
Never lubricate, service, or adjust machine while it ismoving.
Keep hands, feet , and clothing frompower-driven parts. Disengage
all power and operatecontrols to relieve pressure. Lower equipment
to theground. Stop the engine. Remove the key. Allow machineto
cool.
Securely support any machine elements that must beraised for
service work.
Keep all parts in good condition and properly installed.
Fixdamage immediately. Replace worn or broken parts.Remove any
buildup of grease, oil, or debris.
On self-propelled equipment, disconnect battery groundcable (-)
before making adjustments on electrical systemsor welding on
machine.
On towed implements, disconnect wiring harnesses fromtractor
before servicing electrical system components orwelding on
machine.
DX,REPAIR 1917FEB991/1
Use Proper Tools
TS77
9UN
08N
OV8
9
Use tools appropriate to the work. Makeshift tools andprocedures
can create safety hazards.
Use power tools only to loosen threaded parts andfasteners.
For loosening and tightening hardware, use the correctsize
tools. DO NOT use U.S. measurement tools onmetric fasteners. Avoid
bodily injury caused by slippingwrenches.
Use only service parts meeting John Deere specifications.
CTM86 (06JUL06) 01-000-9 POWERTECH 8.1 L Diesel Engines Base
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Safety
01000
10
DX,DRAIN 1903MAR931/1
Dispose of Waste Properly
TS11
33UN
26N
OV9
0
Improperly disposing of waste can threaten theenvironment and
ecology. Potentially harmful waste usedwith John Deere equipment
include such items as oil, fuel,coolant, brake fluid, filters, and
batteries.
Use leakproof containers when draining fluids. Do not usefood or
beverage containers that may mislead someoneinto drinking from
them.
Do not pour waste onto the ground, down a drain, or intoany
water source.
Air conditioning refrigerants escaping into the air candamage
the Earths atmosphere. Government regulationsmay require a
certified air conditioning service center torecover and recycle
used air conditioning refrigerants.
Inquire on the proper way to recycle or dispose of wastefrom
your local environmental or recycling center, or fromyour John
Deere dealer.
DX,LIVE 1925SEP921/1
Live With Safety
TS23
119
07O
CT88
Before returning machine to customer, make suremachine is
functioning properly, especially the safetysystems. Install all
guards and shields.
CTM86 (06JUL06) 01-000-10 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=22
-
Group 001Engine Identification
010011
RG,RG34710,1021 1923OCT971/1
Engine Model Designation
RG
7010
UN
26N
OV9
7
Engine Serial Number Plate
AEngine Serial NumberBEngine Model Designation
JOHN DEERE ENGINE MODEL6081
John Deere engine model designation includes number ofcylinders,
displacement in liters, aspiration, user code, andapplication code.
For example:
6081 HRW01 Engine6
............................................................................
Number of cylinders8.1
...............................................................................
Liter designationH
....................................................................................
Aspiration codeRW
........................................................................................
User code01
...............................................................................
Application CodeAspiration CodeT
............................................................
Turbocharged, no aftercoolingA
...................................... Turbocharged and
coolant-to-air aftercooledH
............................................. Turbocharged and
air-to-air aftercooledUser CodeCQ
................................................................
S.L.C. Horizontina (Brazil)DW
........................................................................................
DavenportF ............................................ OEM
(Original Equipment Manufacturer)FF
........................................ Kernersvill Deere-Hitachi
(North Carolina)FM
.....................................................................................
OEM MarineH
.............................................................................................
HarvesterN
.........................................................................................
Des MoinesRW
.........................................................................
Waterloo (Tractors)T ................................. Dubuque, and
Cameco (Thibodaux, Louisiana)TJ
......................................................... Ontario
(Canada) - TimberjackZ
......................................................................
Zweibrucken (Germany)Application Code001, etc. ..... See ENGINE
APPLICATION CHART, later in this Group
CTM86 (06JUL06) 01-001-1 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=23
-
Engine Identification
01001
2
RG,RG34710,1022 1919MAY991/1
Engine Serial Number Plate Information
RG
7010
UN
26N
OV9
7
Engine Serial Number Plate
AEngine Serial NumberBEngine Application Data
IMPORTANT: The engine serial number plate can beeasily
destroyed. Remove the plate orrecord the information
elsewhere,before hot tank cleaning the block.
Engine Serial Number (A)
Each engine has a 13-digit John Deere engine serialnumber
identifying the producing factory, engine modeldesignation, and a
6-digit sequential number. Thefollowing is an example:
RG6081H000000RG
........................................................ Factory
code producing engine6081H
........................................................... Engine
model designation000000
..........................................................
Sequential serial numberFactory CodeRG
..............................................................
Waterloo Engine WorksEngine Model Designation6801H
.................................... (See ENGINE MODEL
DESIGNATION.)Sequential Number000000
.......................................................... 6-digit
sequential number
The engine serial number plate is located either on
theright-hand side of engine between the oil filter base andfuel
injection pump (viewed from flywheel end) or on theleft-hand side
of the engine directly above the startermotor.
Engine Application Data (B)
The second line of information on the engine serialnumber plate
identifies the engine/Deere machine or OEMrelationship. SeeENGINE
APPLICATION CHART later inthis group.
CTM86 (06JUL06) 01-001-2 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=24
-
Engine Identification
010013
DPSG,OUO1004,900 1919MAY991/1
Engine Option Code Label
RG
1107
4UN
14A
UG00
Option Code Label
In addition to the serial number plate, later OEMengines have an
engine option code label affixed tothe rocker arm cover. These
codes indicate which ofthe engine options were installed on your
engine at the
factory. When in need of parts or service, furnish
yourauthorized servicing dealer or engine distributor withthese
numbers.
RE38635,000003B 1918JUL051/3
Engine Application Chart (John DeereAgricultural Equipment)
Machine ModelDES MOINESCOTTON PICKERS & SPRAYERS9970 Cotton
Picker
.............................................................
6081AN0019976 Cotton Picker
.................................................... 6081HN001,
0039986 Cotton Picker
............................................................
6081HN0034920 Sprayer
......................................................................
6081HN005HARVESTERCOMBINES9510 Low Power Combine
................................................. 6081HH0019510
High Power Combine ................................................
6081HH0029550 Low Power Combine
................................................. 6081HH0089550
High Power Combine ................................................
6081HH0099610 Combine
....................................................................
6081HH0039650 and 9650CTS Combine
............................................ 6081HH0109650
CTS-(Europe) Combine ............................................
6081HH0119650 STS Combine
............................................................
6081HH0069750 STS Combine
............................................................
6081HH005CTS II Combine (Europe-1998 Model Year
...................... 6081HH003CTS II Combine (Europe-1999 Model
Year) ..................... 6081HH004CTS II Combine (North America)
....................................... 6081HH003Amadus Peanut
Combine ..................................................
6081HH007
CTM86 (06JUL06) 01-001-3 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=25
Continued on next page
-
Engine Identification
01001
4
RE38635,000003B 1918JUL052/3
WATERLOOTRACTORS7710 Tractor
.............................................. 6081TRW01, 03, 05,
07, 097810 Tractor .......................................
6081TRW02, 04, 06, 08, 10, 117710/7810 Tractor
................................................ 6081HRW43 (Tier
II)7820 Tractor
......................................................................
6081HRW417920 Tractor
......................................................................
6081HRW428100 Tractor
......................................................................
6081HRW068200 Tractor
......................................................................
6081HRW078300 Tractor
......................................................................
6081HRW088400 Tractor
................................................................
6081HRW01, 048100T (Tracks) Tractor
.....................................................
6081HRW108200T (Tracks) Tractor
.....................................................
6081HRW028300T (Tracks) Tractor
.....................................................
6081HRW098400T (Tracks) Tractor
..................................................... 6081HRW038110
Tractor
......................................................................
6081HRW118210 Tractor
......................................................................
6081HRW138310 Tractor
......................................................................
6081HRW158410 Tractor
......................................................................
6081HRW178110T (Tracks) Tractor
.....................................................
6081HRW128210T (Tracks) Tractor
.....................................................
6081HRW148310T (Tracks) Tractor
.....................................................
6081HRW168410T (Tracks) Tractor
.....................................................
6081HRW188120/8220 Wheel/Tracks (W/T)Tractor
............................. 6081HRW238120/8220 Front Suspended
Axle North America ............ 6081HRW318120/8220 Front Suspended
Axle Region II .................... 6081HRW328320 W/T Tractor
..............................................................
6081HRW258320 Front Suspended Axle North America
..................... 6081HRW338320 Front Suspended Axle Region II
............................. 6081HRW348420W CIS Tractor (Wheels
Only) ................................... 6081HRW268420 W/T Tractor
..............................................................
6081HRW278420 Front Suspended Axle Tractor North America ........
6081HRW358420 Front Suspended Axle Tractor Region II
................. 6081HRW368520 W/T Tractor
..............................................................
6081HRW288520 Front Suspended Axle Tractor North America ........
6081HRW378520 Front Suspended Axle Tractor Region II
................. 6081HRW389100 4-Wheel Drive Tractor
.............................................. 6081HRW059120 4-WD
Wheels Tractor ..............................................
6081HRW30
Continued on next page
CTM86 (06JUL06) 01-001-4 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=26
-
Engine Identification
010015
RE38635,000003B 1918JUL053/3
ZWEIBRUCKENCOMBINES/FORAGE HARVESTERS2256 Combine
.............................................................
6081HZ003, 0072258 Combine
...............................................................
6081HZ002, 052264 Combine
.....................................................................
6081HZ0022266 Combine
.....................................................................
6081HZ0012268 Combine
.....................................................................
6081HZ0069640/9640HM
......................................................................
6081HZ0099640/9640HM & 9850/9850HM Combine
................................................................................................................
6081HZ017 (replaces HZ009)9680/9680HM Combine
......................................................
6081HZ0119780/9780HM Combine
......................................................
6081HZ0129680/9680HM & 9780/9780HM Combine
................................................................................................
6081HZ019 (replaces HZ011 & HZ012)9660/9660HM Combine
......................................................
6081HZ0109660/9660HM Combine ......................... 6081HZ018
(replaces HZ010)6650 Self-Propelled Forage Harvester
............................... 6081HZ0047200 Self-Propelled Forage
Harvester . 6081HZ013 (European Model)7200 Self-Propelled Forage
Harvester
.........................................................................................................
6081HZ016 (North American Model)S.L.C. HORIZONTINA
(BRAZIL)COMBINES1185A Combine
.................................................................
6081ACQ01
CTM86 (06JUL06) 01-001-5 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=27
-
Engine Identification
01001
6
RG41183,0000024 1925JAN011/1
Engine Application Chart (John DeereConstruction Equipment)
Machine ModelDAVENPORT644G Loader
.....................................................................
6081HDW04644H Loader
.....................................................................
6081HDW05644H-MH Loader
................................................... 6081HDW06 (Tier
I)644H-MH Loader ..................................................
6081HDW08 (Tier II)724J Loader
......................................................... 6081HDW09
(Tier II)740G/748G/748G II/748G III Skidder
............................... 6081TDW01770C (Late)/770CH/772CH
Motor Grader ........................ 6081HDW01770C Motor Grader
(Early) ...............................................
6081HDW03870C/872CH Motor Grader
............................................. 6081HDW013DUBUQUE762B
Series II Scraper
........................................................
6081AT001850C Series II Crawler Dozer (822868 )
........................ 6081AT002850J Crawler Dozer
................................................. 6081HT006 Tier
IIBELL EQUIPMENT - SOUTH AFRICA250D/300D Articulated Truck
.............................................. 6081HT003L2006/L2306
Bell Loaders ..................................................
6081HT007DEERE-HITACHI (CANADA)2054 Logger (based on JD200
Excavator) ......................... 6081HT0532554 Logger (based in
JD230 Excavator ........................... 6081HT054DEERE-HITACHI
(JAPAN)330/370 Logger (based on JD330 Excavator)
.................... 6081HT002WOODSTOCK, ON. (TIMBERJACK) &
THIBODAUX, LA. (CAMECO)660D Skidder
......................................................................
6081ATJ02530B/535 Log Loader
................................................... 6081ATJ01,
03608B Feller Buncher
.............................................. 6081HTJ07 (Tier
II)608S Feller Buncher
.............................................. 6081HTJ08 (Tier
II)1710 Forwarder
...................................................................
6081HTJ021270 Harvester
....................................................................
6081HTJ032500 Cane Harvester
..........................................................
6081HT801
RG41183,000003A 1928FEB011/1
Engine Application Chart (OEM) (OutsideEquipment
Manufacturers)
Application Engine ModelOEM Engine (Tier I Emissions Certified)
........................ 6081TF001OEM Engine (Tier I Emissions
Certified) ............................ 6081AF001OEM Engine (Tier I
Emissions Certified) ............................ 6081HF001Marine
Engine
....................................................................
6081AFM01OEM Engine (Tier II Emissions Certified)
........................... 6081HF070
CTM86 (06JUL06) 01-001-6 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=28
-
Group 002Fuels, Lubricants and Coolant
010021
RG41165,0000071 1913MAR011/1
Diesel Fuel
Consult your local fuel distributor for properties of thediesel
fuel available in your area.
In general, diesel fuels are blended to satisfy the
lowtemperature requirements of the geographical area inwhich they
are marketed.
Diesel fuels specified to EN 590 or ASTM D975
arerecommended.
In all cases, the fuel shall meet the followingproperties:
Cetane number of 40 minimum. Cetane numbergreater than 50 is
preferred, especially fortemperatures below -20 C (-4 F) or
elevations above1500 m (5000 ft).
Cold Filter Plugging Point (CFPP) below theexpected low
temperature OR Cloud Point at least5 C (9 F) below the expected low
temperature.
Fuel lubricity should pass a minimum of 3100 gramload level as
measured by the BOCLE scuffing test.
Sulfur content:
Sulfur content should not exceed 0.5%. Sulfurcontent less than
0.05% is preferred.
If diesel fuel with sulfur content greater than 0.5%sulfur
content is used, reduce the service interval forengine oil and
filter by 50%.
DO NOT use diesel fuel with sulfur content greaterthan 1.0%.
DO NOT mix used engine oil or any other type oflubricant with
diesel fuel.
CTM86 (06JUL06) 01-002-1 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=29
-
Fuels, Lubricants and Coolant
01002
2
RG41183,0000046 1918DEC011/1
Bio-Diesel Fuel
Consult your local fuel distributor for properties of
thebio-diesel fuel available in your area.
Bio-diesel fuels may be used ONLY if the bio-dieselfuel
properties meet the latest edition of ASTM PS121,DIN 51606 or
equivalent specification.
It has been found that bio-diesel fuels may improvelubricity in
concentrations up to a 5% blend inpetroleum diesel fuel.
When using a blend of bio-diesel fuel, the engine oillevel must
be checked daily when the air temperatureis -10 C (14 F) or lower.
If the oil becomes diluted withfuel, shorten oil change intervals
accordingly.
IMPORTANT: Raw pressed vegetable oils are NOTacceptable for use
for fuel in anyconcentration in John Deereengines.
These oils do not burn completely,and will cause engine failure
byleaving deposits on injectors and inthe combustion chamber.
A major environmental benefit of bio-diesel fuel is itsability
to biodegrade. This makes proper storage andhandling of bio-diesel
fuel especially important. Areasof concern include:
Quality of new fuel Water content of the fuel Problems due to
aging of the fuel
Potential problems resulting from deficiencies in theabove areas
when using bio-diesel fuel inconcentrations above 5% may lead to
the followingsymptoms:
Power loss and deterioration of performance Fuel leakage
Corrosion of fuel injection equipment Coked and/or blocked injector
nozzles, resulting in
engine misfire Filter plugging Lacquering and/or seizure of
internal components Sludge and sediments Reduced service life of
engine components
DX,FUEL5 1927OCT051/1
Lubricity of Diesel Fuel
Most diesel fuels manufactured in the United States,Canada, and
the European Union have adequatelubricity to ensure proper
operation and durability offuel injection system components.
However, dieselfuels manufactured in some areas of the world
maylack the necessary lubricity.
IMPORTANT: Make sure the diesel fuel used inyour machine
demonstrates goodlubricity characteristics.
Fuel lubricity should pass a minimum load level of3100 grams as
measured by ASTM D6078 or amaximum scar diameter of 0.45 mm as
measured byASTM D6079 or ISO 12156-1.
If fuel of low or unknown lubricity is used, add JohnDeere
PREMIUM DIESEL FUEL CONDITIONER (orequivalent) at the specified
concentration.
CTM86 (06JUL06) 01-002-2 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=30
-
Fuels, Lubricants and Coolant
010023
DX,FUEL6 1914NOV051/1
Testing Diesel Fuel
DIESELSCAN is a John Deere fuel analysis programthat can be used
to monitor the quality of your fuel. TheDIESELSCAN analysis
verifies fuel type, cleanliness,water content, suitability for cold
weather operation, andwhether the fuel meets specifications.
Check with your John Deere dealer for availability ofDIESELSCAN
kits.
DIESELSCAN is a trademark of Deere & Company
DX,ENOIL4 1919DEC051/1
Diesel Engine Break-In Oil
New engines are filled at the factory with John DeereENGINE
BREAK-IN OIL. During the break-in period,add John Deere ENGINE
BREAK-IN OIL as needed tomaintain the specified oil level.
Change the oil and filter after the first 100 hours ofoperation
of a new or rebuilt engine.
After engine overhaul, fill the engine with John DeereENGINE
BREAK-IN OIL.
If John Deere ENGINE BREAK-IN OIL is not available,use a diesel
engine oil meeting one of the followingduring the first 100 hours
of operation:
API Service Classification CE API Service Classification CD API
Service Classification CC ACEA Oil Sequence E2
ACEA Oil Sequence E1
After the break-in period, use John Deere PLUS-50 or other
diesel engine oil as recommended in thismanual.
IMPORTANT: Do not use PLUS-50 oil or engineoils meeting any of
the followingduring the first 100 hours ofoperation of a new or
rebuilt engine:
API CI-4 PLUS API CFAPI CI-4 ACEA E7API CH-4 ACEA E6API CG-4
ACEA E5API CF-4 ACEA E4API CF-2 ACEA E3
These oils will not allow the engineto break-in properly.
PLUS-50 is a trademark of Deere & Company.
CTM86 (06JUL06) 01-002-3 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=31
-
Fuels, Lubricants and Coolant
01002
4
DX,ENOIL 1923NOV051/1
Diesel Engine Oil
TS16
81UN
18D
EC03
Use oil viscosity based on the expected air temperaturerange
during the period between oil changes.
John Deere PLUS-50 oil is preferred
Oils meeting one of the following specifications are
alsorecommended:
ACEA Oil Sequence E7 ACEA Oil Sequence E6 ACEA Oil Sequence E5
ACEA Oil Sequence E4
Extended service intervals may apply when John DeerePLUS-50,
ACEA E7, ACEA E6, ACEA E5, or ACEA E4engine oils are used. Consult
your John Deere dealer formore information.
Other oils may be used if they meet one or more of
thefollowing:
John Deere TORQ-GARD SUPREME API Service Category CI-4 PLUS API
Service Category CI-4 API Service Category CH-4 API Service
Category CG-4 API Service Category CF-4 ACEA Oil Sequence E3 ACEA
Oil Sequence E2
If oils meeting API CG-4, API CF-4, or ACEA E2 areused, reduce
the service interval by 50%.
Multi-viscosity diesel engine oils are preferred.
Diesel fuel quality and fuel sulfur content must complywith all
existing emissions regulations for the area inwhich the engine
operates. If diesel fuel with sulfurcontent greater than 0.50%
(5000 ppm) is used, reducethe service interval by 50%. DO NOT use
diesel fuel withsulfur content greater than 1.00% (10 000 ppm).
PLUS-50 is a trademark of Deere & CompanyTORQ-GARD SUPREME
is a trademark of Deere & Company
CTM86 (06JUL06) 01-002-4 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=32
-
Fuels, Lubricants and Coolant
010025
DX,ENOIL6 1919DEC051/1
Extended Diesel Engine Oil Service Intervals
When John Deere PLUS-50 , ACEA E7, ACEA E6,ACEA E5, or ACEA E4
oils are used with specifiedJohn Deere filter, the service interval
for engine oil andfilter changes may be increased by 50% but not
toexceed a maximum of 500 hours.
If John Deere PLUS-50, ACEA E7, ACEA E6, ACEAE5, or ACEA E4 oils
are used with other than thespecified John Deere filter, change the
engine oil andfilter at the normal service interval.
If John Deere TORQ-GARD SUPREME , API CI-4PLUS, API CI-4, API
CH-4, or ACEA E3 oils are used,change the engine oil and filter at
the normal serviceinterval.
If API CG-4, API CF-4, or ACEA E2 oils are used,change the
engine oil and filter at 50% of the normalservice interval.
PLUS-50 is a trademark of Deere & CompanyTORQ-GARD SUPREME
is a trademark of Deere & Company
DX,ALTER 1915JUN001/1
Alternative and Synthetic Lubricants
Conditions in certain geographical areas may requirelubricant
recommendations different from those printed inthis manual.
Some John Deere brand coolants and lubricants may notbe
available in your location.
Consult your John Deere dealer to obtain information
andrecommendations.
Synthetic lubricants may be used if they meet theperformance
requirements as shown in this manual.
The temperature limits and service intervals shown in thismanual
apply to both conventional and synthetic oils.
Re-refined base stock products may be used if thefinished
lubricant meets the performance requirements.
CTM86 (06JUL06) 01-002-5 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=33
-
Fuels, Lubricants and Coolant
01002
6
DX,LUBMIX 1918MAR961/1
Mixing of Lubricants
In general, avoid mixing different brands or types of oil.Oil
manufacturers blend additives in their oils to meetcertain
specifications and performance requirements.
Mixing different oils can interfere with the properfunctioning
of these additives and degrade lubricantperformance.
Consult your John Deere dealer to obtain specificinformation and
recommendations.
DPSG,OUOD002,1824 1902AUG001/1
OILSCAN and CoolScan
T682
8AB
UN
15J
UN89
T682
9AB
UN
18O
CT88
OILSCAN and CoolScan are John Deere samplingprograms to help you
monitor machine performance andidentify potential problems before
they cause seriousdamage.
Oil and coolant samples should be taken from eachsystem prior to
its recommended change interval.
Check with your John Deere dealer for the availability ofOILSCAN
and CoolScan kits.
OILSCAN is a registered trademark of Deere &
Company.CoolScan is a registered trademark of Deere &
Company.
CTM86 (06JUL06) 01-002-6 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=34
-
Fuels, Lubricants and Coolant
010027
DX,GREA1 1907NOV031/1
Grease
TS16
73UN
31O
CT03
Use grease based on NLGI consistency numbers and theexpected air
temperature range during the service interval.
John Deere SD POLYUREA GREASE is preferred.
The following greases are also recommended
John Deere HD LITHIUM COMPLEX GREASE John Deere HD WATER
RESISTANT GREASE John Deere GREASE-GARD
Other greases may be used if they meet the following:
NLGI Performance Classification GC-LB
IMPORTANT: Some types of grease thickeners arenot compatible
with others. Consultyour grease supplier before mixingdifferent
types of grease
GREASE-GARD is a trademark of Deere & Company
CTM86 (06JUL06) 01-002-7 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=35
-
Fuels, Lubricants and Coolant
01002
8
DX,COOL3 1927OCT051/2
Diesel Engine Coolant
The engine cooling system is filled to provideyear-round
protection against corrosion and cylinderliner pitting, and winter
freeze protection to -37 C(-34 F). If protection at lower
temperatures is required,consult your John Deere dealer for
recommendations.
John Deere COOL-GARD Prediluted Coolant ispreferred for
service.
John Deere COOL-GARD Prediluted Coolant isavailable in a
concentration of either 50% ethyleneglycol or 55% propylene
glycol.
Additional recommended coolants
The following engine coolant is also recommended:
John Deere COOL-GARD Coolant Concentrate in a40% to 60% mixture
of concentrate with qualitywater.
John Deere COOL-GARD coolants do not require useof supplemental
coolant additives, except for periodicreplenishment of additives
during the drain interval.
Other fully formulated coolants
Other fully formulated low silicate ethylene orpropylene glycol
base coolants for heavy-duty enginesmay be used if they meet one of
the followingspecifications:
ASTM D6210 prediluted (50%) coolant ASTM D6210 coolant
concentrate in a 40% to 60%
mixture of concentrate with quality water
Coolants meeting ASTM D6210 do not require use ofsupplemental
coolant additives, except for periodicreplenishment of additives
during the drain interval.
Coolants requiring supplemental coolant additives
Other low silicate ethylene glycol base coolants forheavy-duty
engines may also be used if they meet oneof the following
specifications:
ASTM D4985 ethylene glycol base prediluted (50%)coolant
ASTM D4985 ethylene glycol base coolantconcentrate in a 40% to
60% mixture of concentratewith quality water
Coolants meeting ASTM D4985 require an initialcharge of
supplemental coolant additives, formulatedfor protection of heavy
duty diesel engines againstcorrosion and cylinder liner erosion and
pitting. Theyalso require periodic replenishment of additives
duringthe drain interval.
Other coolants
It is possible that neither John Deere COOL-GARD norcoolants
meeting one of the coolant standards listedabove is available in
the geographical area whereservice is performed. If these coolants
are unavailable,use a coolant concentrate or prediluted coolant
with aquality additive package that provides cylinder
linercavitation protection and protects the cooling systemmetals
(cast iron, aluminum alloys, and copper alloyssuch as brass) from
corrosion.
The additive package must be part of one of thefollowing coolant
mixtures:
ethylene glycol or propylene glycol base prediluted(40% to 60%)
coolant
ethylene glycol or propylene glycol base coolantconcentrate in a
40% to 60% mixture of concentratewith quality water
Water quality
COOL-GARD is a trademark of Deere & Company
CTM86 (06JUL06) 01-002-8 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=36
Continued on next page
-
Fuels, Lubricants and Coolant
010029
DX,COOL3 1927OCT052/2
Water quality is important to the performance of thecooling
system. Distilled, deionized, or demineralizedwater is recommended
for mixing with ethylene glycoland propylene glycol base engine
coolant concentrate.
IMPORTANT: Do not use cooling system sealingadditives or
antifreeze that containssealing additives.
IMPORTANT: Do not mix ethylene glycol andpropylene glycol base
coolants.
CTM86 (06JUL06) 01-002-9 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=37
-
Fuels, Lubricants and Coolant
01002
10
DPSG,OUOD002,1835 1903AUG001/2
Diesel Engine Coolants, Supplemental Additive Information
Engine coolants are a combination of three chemicalcomponents:
ethylene glycol (antifreeze), inhibitingcoolant additives, and
quality water.
Coolant Specifications
Some products, including John Deere COOL-GARDPrediluted Coolant,
are fully formulated coolants thatcontain all three components in
their correctconcentrations. Do not add an initial charge
ofsupplemental coolant additives to these fullyformulated
products.
Some coolant concentrates, including John DeereCOOL-GARD Coolant
Concentrate, contain bothethylene glycol antifreeze and inhibiting
coolantadditives. Mix these products and quality water, but donot
add an initial charge of supplemental coolantadditives.
Coolants meeting ASTM D5345 (prediluted coolant) orASTM D4985
(coolant concentrate) require an initialcharge of supplemental
coolant additives.
Replenish Coolant Additives
The concentration of coolant additives is graduallydepleted
during engine operation. Periodicreplenishment of inhibitors is
required, even whenJohn Deere COOL-GARD is used. Follow
therecommendations in this manual for the use ofsupplemental
coolant additives.
Why Use Supplemental Coolant Additives?
Operating without proper coolant additives will result
inincreased corrosion, cylinder liner erosion and pitting,and other
damage to the engine and cooling system. Asimple mixture of
ethylene glycol and water will notgive adequate protection.
Use of supplemental coolant additives reducescorrosion, erosion,
and pitting. These chemicalsreduce the number of vapor bubbles in
the coolant andhelp form a protective film on cylinder liner
surfaces.
This film acts as a barrier against the harmful effectsof
collapsing vapor bubbles.
Avoid Automotive-Type Coolants
Never use automotive-type coolants (such as thosemeeting ASTM
D3306 or ASTM D4656). Thesecoolants do not contain the correct
additives to protectheavy-duty diesel engines. They often contain a
highconcentration of silicates and may damage the engineor cooling
system.
Non-Aqueous Propylene Glycol
Non-aqueous propylene glycol should not be used withJohn Deere
diesel engines. This coolant works bestwith coolant temperatures
above the acceptableengine operating range. This could decrease
enginelife due to lower engine oil viscosity. In
addition,electronically controlled engines could
experiencepremature power de-rate due to high
coolanttemperature.
Water Quality
Water quality is important to the performance of thecooling
system. Distilled, deionized, or demineralizedwater is recommended
for mixing with ethylene glycolbase engine coolant concentrate. All
water used in thecooling system should meet the following
minimumspecifications for quality:
Chlorides 40 mg/L or lessSulfates 100 mg/L or lessTotal
Dissolved Solids 340 mg/L or lessTotal Hardness 170 mg/L or lesspH
Level 5.5 to 9.0
Freeze Protection
The relative concentrations of ethylene glycol andwater in the
engine coolant determine its freezeprotection limit. Refer to the
chart on the followingpage.
CTM86 (06JUL06) 01-002-10 POWERTECH 8.1 L Diesel Engines Base
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PN=38
Continued on next page
-
Fuels, Lubricants and Coolant
0100211
DPSG,OUOD002,1835 1903AUG002/2
Ethylene Glycol Freeze Protection Limit40% -24 C (-12 F)50% -37
C (-34 F)60% -52 C (-62 F)
DO NOT use a coolant-water mixture greater than60% ethylene
glycol.
DPSG,OUOD002,1825 1902AUG001/1
Testing Diesel Engine Coolant
Maintaining adequate concentrations of glycol andinhibiting
additives in the coolant is critical to protect theengine and
cooling system against freezing, corrosion,and cylinder liner
erosion and pitting.
Test the coolant solution at intervals of 12 months or lessand
whenever excessive coolant is lost through leaks oroverheating.
Coolant Test Strips
Coolant test strips are available from your John Deeredealer.
These test strips provide a simple, effectivemethod to check the
freeze point and additive levels ofyour engine coolant.
Compare the results to the supplemental coolant additive(SCA)
chart to determine the amount of inhibitingadditives in your
coolant and whether more John DeereCOOLANT CONDITIONER should be
added.
CoolScan
For a more thorough evaluation of your coolant, perform
aCoolScan analysis. See your John Deere dealer forinformation about
CoolScan.
CTM86 (06JUL06) 01-002-11 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=39
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Fuels, Lubricants and Coolant
01002
12
RG,01,DT7035 1914NOV001/2
Replenishing Supplemental Coolant Additives (SCAs) Between
Coolant Changes
RG
6261
UN
08D
EC97
RG
6262
UN
05D
EC97
IMPORTANT: Do not add supplemental coolantadditives when the
cooling system isdrained and refilled with John
DeereANTIFREEZE/SUMMER COOLANT orJohn Deere COOL-GARD .
NOTE: If a system is to be filled with coolant that doesnot
contain SCAs, the coolant must beprecharged. Determine the total
systemcapacity and premix with 3% John DeereCoolant
Conditioner.
Through time and use, the concentration of coolantadditives is
gradually depleted during engine operation.Periodic replenishment
of inhibitors is required, evenwhen John Deere ANTIFREEZE/SUMMER
COOLANTis used. The cooling system must be recharged withadditional
supplemental coolant additives available inthe form of liquid
coolant conditioner.
Maintaining the correct coolant conditionerconcentration (SCAs)
and freeze point is essential inyour cooling system to protect
against rust, liner pittingand corrosion, and freeze-ups due to
incorrect coolantdilution.
John Deere LIQUID COOLANT CONDITIONER isrecommended as a
supplemental coolant additivein John Deere engines.
DO NOT mix one brand of SCA with a differentbrand.
Test the coolant solution at 600 hours or 12 months ofoperation
using either John Deere coolant test strips ora COOLSCAN analysis.
If a COOLSCAN analysis isnot available, recharge system per
instructions printedon label of John Deere Liquid Coolant
Conditioner.
COOL-GARD is a registered trademark of Deere &
CompanyCOOLSCAN is a registered trademark of Deere & Company.
Continued on next page
CTM86 (06JUL06) 01-002-12 POWERTECH 8.1 L Diesel Engines Base
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Fuels, Lubricants and Coolant
0100213
RG,01,DT7035 1914NOV002/2
IMPORTANT: ALWAYS maintain coolant at correctlevel and
concentration. DO NOToperate engine without coolant foreven a few
minutes.
If frequent coolant makeup isrequired, the glycol
concentrationshould be checked with JT07298Coolant/Battery Tester
to ensure thatthe desired freeze point ismaintained. Follow
manufacturersinstructions provided withCoolant/Battery Tester.
Add the manufacturers recommended concentration ofsupplemental
coolant additive. DO NOT add more thanthe recommended amount.
The use of non-recommended supplemental coolantadditives may
result in additive drop-out and gelationof the coolant.
If other coolants are used, consult the coolant supplierand
follow the manufacturers recommendation for useof supplemental
coolant additives.
See DIESEL ENGINE COOLANTS, SUPPLEMENTALADDITIVE INFORMATION
earlier in this group forproper mixing of coolant ingredients
before adding tothe cooling system.
DX,COOL6 1918MAR961/1
Operating in Warm Temperature Climates
John Deere engines are designed to operate using glycolbase
engine coolants.
Always use a recommended glycol base engine coolant,even when
operating in geographical areas where freezeprotection is not
required.
IMPORTANT: Water may be used as coolant inemergency situations
only.
Foaming, hot surface aluminum andiron corrosion, scaling, and
cavitationwill occur when water is used as thecoolant, even when
coolantconditioners are added.
Drain cooling system and refill withrecommended glycol base
enginecoolant as soon as possible.
CTM86 (06JUL06) 01-002-13 POWERTECH 8.1 L Diesel Engines Base
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PN=41
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Fuels, Lubricants and Coolant
01002
14
RG,01,DT7033 1929OCT971/2
Flush and Service Cooling System
TS28
1UN
23A
UG88
CAUTION: Explosive release of fluids frompressurized cooling
system can cause seriousburns. Shut off engine. Only remove filler
capwhen cool enough to touch with bare hands.Slowly loosen cap to
first stop to relievepressure before removing cap completely.
IMPORTANT: Air must be expelled from coolingsystem when system
is refilled. SeeCHECKING COOLING SYSTEM inoperators manual.
The ethylene glycol base (antifreeze) can becomedepleted of SCAs
allowing various acids to form that willdamage engine components.
In addition, heavy metals,such as lead, copper and zinc, accumulate
in the ethyleneglycol base. The heavy metals come from corrosion
thatoccurs to some degree with in a cooling system. When acoolant
is saturated to the point where it can no longerhold heavy metals
and other dissolved solids, they settleout and act as abrasives on
engine parts.
NOTE: Refer to your operators manual for a specificservice
interval. See LUBRICATION ANDMAINTENANCE SERVICE INTERVAL CHART
inoperators manual.
Flush cooling system as described in your operatorsmanual. See
FLUSHING COOLING SYSTEM inoperators manual. Clean cooling system
with clean waterand TY15979 John Deere Heavy-Duty Cooling
SystemCleaner or an equivalent cleaner such as FLEETGUARD RESTORE
or RESTORE PLUS . Follow the instructionsprovided with the cleaner.
Refill cooling system with theappropriate coolant solution. See
DIESEL ENGINECOOLANT, earlier in this group.
FLEETGUARD is a registered trademark of the Cummins
EngineCompany.RESTORE is a trademark of FLEETGUARD.RESTORE PLUS is
a trademark of FLEETGUARD.
CTM86 (06JUL06) 01-002-14 POWERTECH 8.1 L Diesel Engines Base
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PN=42
Continued on next page
-
Fuels, Lubricants and Coolant
0100215
RG,01,DT7033 1929OCT972/2
IMPORTANT: NEVER overfill the system. Apressurized system needs
space forheat expansion without overflowing atthe top of the
radiator. Coolant levelshould be at bottom of radiator
fillerneck.
Air must be expelled from coolingsystem when system is refilled.
Loosenplug in side of thermostat housing toallow air to escape when
filling system.Retighten plug when all the air hasbeen
expelled.
After adding new coolant solution, run engine until itreaches
operating temperature. This mixes the coolantsolution uniformly and
circulates it through the entiresystem. After running engine, check
coolant level andentire cooling system for leaks.
Contact your engine servicing dealer, if there are
furtherquestions.
RG,01,DT7032 1929OCT971/1
Disposing of Coolant
TS11
33UN
26N
OV9
0
Improperly disposing of engine coolant can threaten
theenvironment and ecology.
Use leakproof containers when draining fluids. Do not usefood or
beverage containers that may mislead someoneinto drinking from
them.
Do not pour waste onto the ground, down a drain, or intoany
water source.
Inquire on the proper way to recycle or dispose of wastefrom
your local environmental or recycling center, or fromyour engine
servicing dealer.
CTM86 (06JUL06) 01-002-15 POWERTECH 8.1 L Diesel Engines Base
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Fuels, Lubricants and Coolant
01002
16
CTM86 (06JUL06) 01-002-16 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=44
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Section 02Repair and AdjustmentsContents 02
Page Page
Group 010Engine Rebuild Inspect Valve Spring Caps, Wear Caps,
andEngine Overhaul Guidelines . . . . . . . . . . . . . .02-010-1
Retainer Locks Serial NumberEngine Repair Stand . . . . . . . . . .
. . . . . . . . . .02-010-1 ( 199,999) . . . . . . . . . . . . . .
. . . . . . . . .02-020-17Safety Precautions . . . . . . . . . . .
. . . . . . . . . .02-010-2 Clean Valves Serial Number ( 199,999).
. .02-020-17Install Adapters on Engine Repair Stand. . . .
.02-010-2 Inspect and Measure Valves Serial NumberEngine Lifting
Procedure . . . . . . . . . . . . . . . . .02-010-3 ( 199,999) . .
. . . . . . . . . . . . . . . . . . . . .02-020-18Clean Engine . .
. . . . . . . . . . . . . . . . . . . . . . .02-010-4 Grind
(Reface) Valves Serial NumberDisconnect Turbocharger Oil Inlet Line
. . . . . .02-010-5 ( 199,999) . . . . . . . . . . . . . . . . . .
. . . . .02-020-19Mount Engine on Repair Stand . . . . . . . . . .
. .02-010-6 Inspect and Clean Cylinder Head SerialEngine
Disassembly Sequence for Number ( 199,999) . . . . . . . . . . . .
. . . . .02-020-19
Overhaul . . . . . . . . . . . . . . . . . . . . . . . . . .
.02-010-8 Check Cylinder Head Combustion FaceSealant Application
Guidelines . . . . . . . . . . . .02-010-9 Flatness Serial Number (
199,999). . . . .02-020-206081 Engine Assembly Sequence After
Measure Cylinder Head Thickness SerialOverhaul . . . . . . . . . .
. . . . . . . . . . . . . . . .02-010-11 Number ( 199,999) . . . .
. . . . . . . . . . . . .02-020-21Engine Break-In Guidelines. . . .
. . . . . . . . . .02-010-13 Clean Valve Guides Serial
NumberPerform Engine Break-In . . . . . . . . . . . . . . .
.02-010-14 ( 199,999) . . . . . . . . . . . . . . . . . . . . . .
.02-020-22Check Crankcase Ventilation System . . . . . .02-010-16
Measure Valve Guides Serial NumberCheck Air Intake System. . . . .
. . . . . . . . . . .02-010-16 ( 199,999) . . . . . . . . . . . . .
. . . . . . . . . .02-020-22Check Exhaust System . . . . . . . . .
. . . . . . . .02-010-17 Knurl Valve Guides Serial NumberCheck and
Service Cooling System . . . . . . .02-010-17 ( 199,999) . . . . .
. . . . . . . . . . . . . . . . . .02-020-23Check Electrical System
. . . . . . . . . . . . . . . .02-010-19 Clean and Inspect Valve
Seats SerialGeneral Tune-Up Recommendations . . . . .
.02-010-21
Number ( 199,999) . . . . . . . . . . . . . . . .
.02-020-23Measure Valve Sears Serial NumberGroup 020Cylinder Head
and Valves Repair and ( 199,999) . . . . . . . . . . . . . . . . .
. . . . . .02-020-24Adjustment S. N. ( 199,999) Grind Valve Seats
Serial NumberCheck and Adjust Valve Clearance Serial ( 199,999) . .
. . . . . . . . . . . . . . . . . . . . .02-020-25Number ( 199,999)
. . . . . . . . . . . . . . . . . .02-020-1 Remove Valve Seat
Inserts Serial NumberCheck Valve Lift Serial Number ( 199,999) . .
. . . . . . . . . . . . . . . . . . . . .02-020-26( 199,999) . . .
. . . . . . . . . . . . . . . . . . . . .02-020-5 Install Valve
Seat Inserts Serial NumberRemove Cylinder Head Serial Number (
199,999) . . . . . . . . . . . . . . . . . . . . . . .02-020-27(
199,999) . . . . . . . . . . . . . . . . . . . . . . .
.02-020-6Inspect and Clean Cylinder Head NozzleHead Gasket
Inspection and Repair
Bore Serial Number ( 199,999). . . . . . . .02-020-27Sequence
Serial Number ( 199,999) . . . .02-020-9Clean and Inspect Push Rods
Serial NumberDisassemble and Inspect Rocker Arm Shaft ( 199,999) .
. . . . . . . . . . . . . . . . . . . . . .02-020-29Assembly Serial
NumberInspect and Clean Ventilator Outlet Hose( 199,999) . . . . .
. . . . . . . . . . . . . . . . . .02-020-11
Serial Number ( 199,999) . . . . . . . . . . .
.02-020-29Assemble Rocker Arm Shaft AssemblyClean and Inspect Top
Deck of CylinderSerial Number ( 199,999) . . . . . . . . . . .
.02-020-12
Block Serial Number ( 199,999) . . . . . . .02-020-30Measure
Valve Recess Serial NumberMeasure Cylinder Liner Standout (Height(
199,999) . . . . . . . . . . . . . . . . . . . . . . .02-020-13
Above Block) Serial NumberPreliminary Cylinder Head and Valve(
199,999) . . . . . . . . . . . . . . . . . . . . . .
.02-020-31Checks Serial Number ( 199,999) . . . . .02-020-14
Assemble Valve Assembly Serial NumberRemove Valve Assembly
Serial Number( 199,999) . . . . . . . . . . . . . . . . . . . . . .
.02-020-15 ( 199,999) . . . . . . . . . . . . . . . . . . . . . .
.02-020-32
Inspect and Measure Valve Springs SerialNumber ( 199,999) . . .
. . . . . . . . . . . . . .02-020-16 Continued on next page
CTM86 (06JUL06) 02-1 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=1
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Contents
Page Page
Install Cylinder Head and Cap Screws Inspect and Measure Valves
- Serial NumberSerial Number ( 199,999) . . . . . . . . . . .
.02-020-33 (200,000 ) . . . . . . . . . . . . . . . . . . . . . .
.02-021-21
Torque-to-Yield Flanged-Head Cap Screws Grind (Reface) Valves -
Serial NumberGrade 180 Marked SPECIAL Serial (200,000 ) . . . . . .
. . . . . . . . . . . . . . . . .02-021-22Number ( 199,999) . . . .
. . . . . . . . . . . . .02-020-35 Inspect and Clean Cylinder Head
- Serial
Install Rocker Arm Assembly Serial Number Number (200,000 ) . .
. . . . . . . . . . . . . . .02-021-23
02
( 199,999) . . . . . . . . . . . . . . . . . . . . . .
.02-020-36 Check Cylinder Head Combustion FaceInspect and Clean
Ventilator Outlet Hose Flatness - Serial Number (200,000 ). . .
.02-021-24
Serial Number ( 199,999) . . . . . . . . . . . .02-020-37
Measure Cylinder Head Thickness - SerialComplete Final Assembly of
Injection Pump Number (200,000 ) . . . . . . . . . . . . . . . .
.02-021-25
Side of Engine Serial Number Clean Valve Guides - Serial Number(
199,999) . . . . . . . . . . . . . . . . . . . . . . .02-020-38
(200,000 ) . . . . . . . . . . . . . . . . . . . . . .
.02-021-26
Complete Final Assembly on Exhaust Measure Valve Guides - Serial
NumberManifold Side of Engine Serial Number (200,000 ) . . . . . .
. . . . . . . . . . . . . . . . .02-021-26( 199,999) . . . . . . .
. . . . . . . . . . . . . . . .02-020-39 Knurl Valve Guides -
Serial Number
Perform Engine Break-In Serial Number (200,000 ) . . . . . . . .
. . . . . . . . . . . . . . .02-021-27( 199,999) . . . . . . . . .
. . . . . . . . . . . . . .02-020-40 Clean and Inspect Valve Seats
- Serial
Number (200,000 ) . . . . . . . . . . . . . . . .
.02-021-27Measure Valve Seats - Serial NumberGroup 021Cylinder Head
and Valves Repair and
(200,000 ) . . . . . . . . . . . . . . . . . . . . . .
.02-021-28Adjustment S. N. (200,000 )Grind Valve Seats - Serial
NumberCheck Valve Clearance Serial Number
(200,000 ) . . . . . . . . . . . . . . . . . . . . . .
.02-021-29(200,000 ) . . . . . . . . . . . . . . . . . . . . . . .
.02-021-1Remove Valve Seat Inserts and MeasureAdjust Valve
Clearance Serial Number
Bores in Cylinder Head - Serial Number (200,000(200,000 ) . . .
. . . . . . . . . . . . . . . . . . . . .02-021-4) . . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . . .02-021-30Check Valve
Lift Serial Number
Install Valve Seat Inserts - Serial Number(200,000 ) . . . . . .
. . . . . . . . . . . . . . . . . .02-021-8(200,000 ) . . . . . . .
. . . . . . . . . . . . . . . .02-021-31Remove Cylinder Head Serial
Number
Inspect and Clean Cylinder Head Nozzle(200,000 ) . . . . . . . .
. . . . . . . . . . . . . . . .02-021-9Bore - Serial Number
(200,000 ) . . . . . .02-021-31Diagnosing Head Gasket Joint
Failures -
Clean and Inspect Push Rods - SerialSerial Number (200,000 ) . .
. . . . . . . . . .02-021-11Number (200,000 ) . . . . . . . . . . .
. . . . . .02-021-32Head Gasket Diagnostic Charts - Serial
Clean and Inspect Top Deck of CylinderNumber (200,000 ) . . . .
. . . . . . . . . . . . .02-021-13Block - Serial Number (200,000 )
. . . . . .02-021-32Head Gasket Inspection and Repair
Measure Cylinder Liner Standout (HeightSequence - Serial Number
(200,000Above Block) Serial Number) . . . . . . . . . . . . . . . .
. . . . . . . . . . . . . . . .02-021-14(200,000 ) . . . . . . . .
. . . . . . . . . . . . . . .02-021-33Inspect Rocker Arm Assembly -
Serial
Assemble Valve Assembly - Serial NumberNumber (200,000 ) . . . .
. . . . . . . . . . . . .02-021-16(200,000 ) . . . . . . . . . . .
. . . . . . . . . . . .02-021-34Disassemble and Assemble Rocker
Arm
Install Cylinder Head and Cap Screws -Assembly - Serial Number
(200,000 ). . .02-021-17Serial Number (200,000 ) . . . . . . . . .
. . .02-021-36Measure Valve Recess - Serial Number
Torque-to-Yield Flanged-Head Cap Screws(200,000 ) . . . . . . .
. . . . . . . . . . . . . . . .02-021-17Grade 180 Marked SPECIAL -
SerialPreliminary Cylinder Head and ValveNumber (200,000 ) . . . .
. . . . . . . . . . . . .02-021-38Checks - Serial Number (200,000 )
. . . .02-021-18
Install Rocker Arm Assembly - Serial NumberRemove Valve Assembly
- Serial Number(200,000 ) . . . . . . . . . . . . . . . . . . . . .
. .02-021-40(200,000 ) . . . . . . . . . . . . . . . . . . . . . .
.02-021-19
Inspect and Measure Valve Springs - Inspect and Clean Ventilator
Outlet Hose -Serial Number (200,000 ) . . . . . . . . . . .
.02-021-20 Serial Number (200,000 ) . . . . . . . . . . .
.02-021-41
Inspect Valve Spring Caps, Wear Caps, and Complete Final
Assembly of Fuel Pump SideRetainer Locks Serial Number of Engine
Serial Number(200,000 ) . . . . . . . . . . . . . . . . . . . . . .
.02-021-20 (200,000 ) . . . . . . . . . . . . . . . . . . . . . .
.02-021-41
Clean Valves - Serial Number (200,000Continued on next page) . .
. . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.02-021-21
CTM86 (06JUL06) 02-2 POWERTECH 8.1 L Diesel Engines Base
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PN=2
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Contents
Page Page
Complete Final Assembly on Exhaust Check Engine Rotation for
ExcessiveTightness. . . . . . . . . . . . . . . . . . . . . . . . .
.02-030-44Manifold Side of Engine - Serial Number (200,000
Complete Final Assembly . . . . . . . . . . . . . . .02-030-45)
. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.02-021-42 02Perform Engine Break-In - Serial Number
Group 040Crankshaft, Main Bearings and(200,000 ) . . . . . . . .
. . . . . . . . . . . . . . .02-021-43Flywheel Repair and
Adjustment
Crankshaft and Main Bearing FailureGroup 030Cylinder Block,
Liners, Pistons, and Analysis . . . . . . . . . . . . . . . . . . .
. . . . . . . . .02-040-1Rods Repair and Adjustment Crankshaft Rear
Oil Seal and Wear SleevePreliminary Liner, Piston, and Rod Checks .
. .02-030-1 General Information . . . . . . . . . . . . . . . . . .
.02-040-2Connecting RodsGeneral Information . . . . .02-030-2
Remove Crankshaft Rear Oil Seal and WearRemove Pistons and
Connecting Rod Sleeve . . . . . . . . . . . . . . . . . . . . . . .
. . . . . .02-040-3
Assemblies . . . . . . . . . . . . . . . . . . . . . . . .
.02-030-3 Crankshaft Rear Oil Seal and Wear SleeveMeasure Cylinder
Liner Standout (Height Handling Precautions. . . . . . . . . . . .
. . . . . .02-040-5
Above Block) . . . . . . . . . . . . . . . . . . . . . . .
.02-030-7 Install Crankshaft Rear Oil Seal and WearRemove Cylinder
Liners . . . . . . . . . . . . . . . . .02-030-8 Sleeve . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .02-040-6Deglaze
Cylinder Liners . . . . . . . . . . . . . . . . .02-030-9 Inspect
Vibration Damper . . . . . . . . . . . . . . . .02-040-8Clean
Cylinder Liners . . . . . . . . . . . . . . . . . .02-030-10 Check
Crankshaft End Play . . . . . . . . . . . . . .02-040-9Disassemble
Piston and Rod Assembly . . . .02-030-11 Remove Crankshaft
Vibration Damper . . . . .02-040-10Clean Pistons . . . . . . . . .
. . . . . . . . . . . . . . .02-030-12 Remove Crankshaft Front Oil
Seal and WearVisually Inspect Pistons. . . . . . . . . . . . . . .
. .02-030-13 Sleeve . . . . . . . . . . . . . . . . . . . . . . . .
. . . .02-040-11Check Piston Ring Groove Wear. . . . . . . . .
.02-030-14 Remove and Install Timing GearInspect Piston Pin and
Bore . . . . . . . . . . . . .02-030-15 CoverEngine Installed in
Vehicle (8000 Series
Tractors) . . . . . . . . . . . . . . . . . . . . . . . . .
.02-040-13Visually Inspect Cylinder Liners. . . . . . . . . .
.02-030-16Remove Timing Gear CoverEngineCylinder Liner
Manufacturing Date Code
Removed . . . . . . . . . . . . . . . . . . . . . . . . .
.02-040-14Explanation . . . . . . . . . . . . . . . . . . . . . . .
.02-030-18Inspect and Measure Flywheel . . . . . . . . . .
.02-040-15Determine Piston-to-Liner Clearance. . . . . .
.02-030-19Check Flywheel Housing Face Runout . . . .
.02-040-15Inspect Rod and Cap . . . . . . . . . . . . . . . . .
.02-030-21Check Flywheel Face Flatness . . . . . . . . . .
.02-040-16Inspect Piston Pins and Bushings . . . . . . . .
.02-030-23Check Pilot Bearing Bore Concentricity . . . .
.02-040-16Remove Piston Pin Bushing, Clean andRemove Flywheel . . .
. . . . . . . . . . . . . . . . . .02-040-17Inspect Pin Bore . . .
. . . . . . . . . . . . . . . . .02-030-25Remove SAE 1 Flywheel
Housing. . . . . . . . .02-040-17Measure Liner Flange . . . . . . .
. . . . . . . . . . .02-030-26Remove SAE 2 and 3 Flywheel Housing.
. . .02-040-18Inspect and Measure Connecting RodReplace Flywheel
Ring Gear. . . . . . . . . . . . .02-040-18Bearings . . . . . . . .
. . . . . . . . . . . . . . . . . .02-030-27Remove and Install Rear
Oil SealInstall Piston Pin Bushing in Connecting
HousingEngine Installed in Vehicle (8000 SeriesRod . . . . . . .
. . . . . . . . . . . . . . . . . . . . . . .02-030-29Tractors) . .
. . . . . . . . . . . . . . . . . . . . . . . .02-040-19Complete
Disassembly of Cylinder Block (If Remove Rear Oil Seal
HousingEngineRequired). . . . . . . . . . . . . . . . . . . . . . .
. . .02-030-30 Removed . . . . . . . . . . . . . . . . . . . . . .
. . . .02-040-20Remove and Clean Piston Cooling Remove Main Bearing
Caps . . . . . . . . . . . . .02-040-21Orifices . . . . . . . . . .
. . . . . . . . . . . . . . . . .02-030-30 Check Main Bearing Oil
Clearance . . . . . . . .02-040-23Inspect and Clean Cylinder Block
. . . . . . . . .02-030-31 Remove Connecting Rod Caps and
Remove
Measure Cylinder Block . . . . . . . . . . . . . . . .02-030-33
Crankshaft . . . . . . . . . . . . . . . . . . . . . . . .
.02-040-24Install Piston Cooling Orifices and Gallery Inspect
Crankshaft . . . . . . . . . . . . . . . . . . . .02-040-25
Plugs . . . . . . . . . . . . . . . . . . . . . . . . . . . .
.02-030-34 Measure Assembled I.D. of Bearings andRecheck Cylinder
Liner Standout . . . . . . . . .02-030-34 O.D. of Crankshaft
Journals. . . . . . . . . . . .02-040-26Install Liner ShimsIf
Required . . . . . . . . . .02-030-35 Main Bearing Cap Line
BoreInstall Packing on Cylinder Liner and O-Rings Specifications. .
. . . . . . . . . . . . . . . . . . . . .02-040-28
in Block . . . . . . . . . . . . . . . . . . . . . . . . . .
.02-030-36 Thrust Bearing New Part Specifications . . .
.02-040-29Install Cylinder Liner in Block . . . . . . . . . . .
.02-030-37 Crankshaft Grinding Guidelines. . . . . . . . . .
.02-040-30Install Piston and Connecting Rod. . . . . . . .
.02-030-38 Crankshaft Grinding Specifications . . . . . . .
.02-040-32Torque-Turn Connecting Rod Cap
Continued on next pageScrews. . . . . . . . . . . . . . . . . .
. . . . . . . . . .02-030-43
CTM86 (06JUL06) 02-3 POWERTECH 8.1 L Diesel Engines Base
Engine071706
PN=3
-
Contents
Page Page
Replace (Crankshaft) Oil Pump Drive Oil Filter Base and Oil
PressureGear . . . . . . . . . . . . . . . . . . . . . . . . . . .
. .02-040-33 Regulating Valve Housing Assembly . . . . .
.02-060-2
Replace Crankshaft Gear . . . . . . . . . . . . . . .02-040-34
Top-Load Oil Filter Assembly . . . . . . . . . . . .
.02-060-3Inspect Thrust Bearings . . . . . . . . . . . . . . .
.02-040-35 Remote Oil Filter Assembly . . . . . . . . . . . . . .
.02-060-5Remove and Clean Piston Cooling Changing Top-Load Oil
Filter . . . . . . . . . . . . .02-060-6
Orifices . . . . . . . . . . . . . . . . . . . . . . . . . .
.02-040-35 Remove and Install Oil Filter Base and Oil
02
Install Main Bearings and Crankshaft . . . . . .02-040-36
Pressure Regulating Valve Housing. . . . . . .02-060-7Install
Crankshaft Rear Oil Seal Housing. . . .02-040-39 Engine Oil Cooler
Assembly . . . . . . . . . . . . . .02-060-9Check Crankshaft Rear
Oil Seal Housing Remove, Inspect, and Install Engine Oil
Runout. . . . . . . . . . . . . . . . . . . . . . . . . . .
.02-040-41 Cooler . . . . . . . . . . . . . . . . . . . . . . . . .
. . .02-060-10Crankshaft Rear Oil Seal and Wear Sleeve Remove,
Inspect, and Install Oil Pressure
Handling Precautions. . . . . . . . . . . . . . . . .02-040-42
Regulating Valve, Oil Filter BypassInstall Crankshaft Rear Oil Seal
and Wear Valve, and Oil Cooler Bypass Valve . . . .
.02-060-12Sleeve Assembly . . . . . . . . . . . . . . . . . . .
.02-040-43 Remove Engine from 8000 Tractors forInstall Timing Gear
Cover . . . . . . . . . . . . . . .02-040-45 Access to Engine Oil
Pump . . . . . . . . . . . .02-060-13Install Front Wear Sleeve . .
. . . . . . . . . . . . .02-040-46 Remove Oil Pan . . . . . . . . .
. . . . . . . . . . . . .02-060-13Install Crankshaft Front Oil Seal
. . . . . . . . . .02-040-47 Check Crankshaft Gear-to-Oil Pump
DriveInstall Vibration Damper . . . . . . . . . . . . . . .
.02-040-48 Gear Backlash . . . . . . . . . . . . . . . . . . . . .
.02-060-14Install SAE 2 and 3 Flywheel Housing. . . . .
.02-040-49
Remove Engine Oil Pump . . . . . . . . . . . . . .
.02-060-14Install Flywheel & Flex Plates - OptionInspect and
Clean Oil Pump . . . . . . . . . . . . .02-060-15Code 1502. . . . .
. . . . . . . . . . . . . . . . . . . .02-040-51Check Drive Shaft
End Play . . . . . . . . . . . . .02-060-16Install Flywheel . . . .
. . . . . . . . . . . . . . . . . . .02-040-53Check Drive Shaft
Side Movement . . . . . . . .02-060-16Install SAE 1 Flywheel
Housing. . . . . . . . . . .02-040-54Check Pumping Gear Backlash. .
. . . . . . . . .02-060-17Complete Final Assembly . . . . . . . . .
. . . . . .02-040-54Inspect Oil Pump Drive Gear. . . . . . . . . .
. . .02-060-17
Group 050Camshaft and Timing Gear Train Adjust Oil Pump Set
Screw . . . . . . . . . . . . . .02-060-18Repair and Adjustment
Install Engine Oil Pump. . . . . . . . . . . . . . . .
.02-060-18
Check Camshaft End Play and Measure Gear Remove and Install Oil
Pump Outlet TubeBacklash . . . . . . . . . . . . . . . . . . . . .
. . . . . .02-050-1 and Oil Cooler Crossover Tube
Remove Vibration Damper and Timing Adapter . . . . . . . . . . .
. . . . . . . . . . . . . . . .02-060-20Gear Cover . . . . . . . .
. . . . . . . . . . . . . . . . .02-050-2 Remove, Inspect, and
Install Oil PumpRemove, Inspect, and Install Crankshaft Pickup Tube
. . . . . . . . . . . . . . . . . . . . . . .02-060-21Gear-Driven
Auxiliary DriveIf Equipped . .02-050-3 Install Engine Oil Pan . . .
. . . . . . . . . . . . . . .02-060-22Remove Camshaft. . . . . . .
. . . . . . . . . . . . . . .02-050-8 Tighten Cap Screws on Front
Frame/OilRemove Camshaft Gears . . . . . . . . . . . . . .
.02-050-10 Sump (8000 Series Tractors) . . . . . . . . . .
.02-060-24Measure Thrust Washer Thickness . . . . . . .
.02-050-11Inspect and Measure Camshaft Followers. . .02-050-11
Group 070Cooling System Repair andVisually Inspect Camshaft . .
. . . . . . . . . . . . .02-050-12Me