5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair https://my.alldata.com/repair/#/repair/article/44978/component/57/itype/401/nonstandard//selfRefLink/true 1/19 2008 Mazda Truck CX-7 AWD L4-2.3L Turbo Vehicle > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Chain > Service and Repair REMOVAL AND REPLACEMENT REMOVAL/INSTALLATION [L3 WITH TC] TIMING CHAIN 1. Disconnect the negative battery cable. 2. Remove the under cover. 3. Remove the splash shield. 4. Remove the charge air cooler. 5. Remove the high pressure fuel pump. 6. Remove the ignition coils. 7. Disconnect the wiring harness. 8. Remove the ventilation hose. 9. Remove the drive belt. 10. Remove the crankshaft position (CKP) sensor. 11. Remove the P/S oil pump with the hoses and pipes still connected. Note - Position and secure the P/S oil pump out of the way with a rope or wire. 12. Remove the bracket shown in the figure, and place the power steering pressure hose outside of the vehicle. 13. Remove in the order indicated in the figure. 14. Install in the reverse order of removal. 15. Start the engine and inspect and adjust the following: 1) Engine oil amount (See ENGINE OIL LEVEL INSPECTION [L3 WITH TC].) 2) Runout and contact of pulley and belt. 3) Ignition timing, idle speed, and idle mixture (CO and HC) verification (See ENGINE TUNE-UP [L3 WITH TC].) See: Tune-up and Engine Performance Checks > Component Tests and General Diagnostics > Engine Tune-Up [L3 With TC]
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
2008 Mazda Truck CX-7 AWD L4-2.3L TurboVehicle > Engine, Cooling and Exhaust > Engine > Timing Components > Timing Chain > Service and Repair
REMOVAL AND REPLACEMENT
REMOVAL/INSTALLATION [L3 WITH TC]TIMING CHAIN
1. Disconnect the negative battery cable. 2. Remove the under cover. 3. Remove the splash shield. 4. Remove the charge air cooler. 5. Remove the high pressure fuel pump. 6. Remove the ignition coils. 7. Disconnect the wiring harness. 8. Remove the ventilation hose. 9. Remove the drive belt. 10. Remove the crankshaft position (CKP) sensor. 11. Remove the P/S oil pump with the hoses and pipes still connected.
Note - Position and secure the P/S oil pump out of the way with a rope or wire.
12. Remove the bracket shown in the figure, and place the power steering pressure hose outside of the vehicle.13. Remove in the order indicated in the figure.14. Install in the reverse order of removal.15. Start the engine and inspect and adjust the following: 1) Engine oil amount (See ENGINE OIL LEVEL INSPECTION [L3 WITH TC].) 2) Runout and contact of pulley and belt. 3) Ignition timing, idle speed, and idle mixture (CO and HC) verification (See ENGINE TUNE-UP [L3 WITH TC].) See:Tune-up and Engine Performance Checks > Component Tests and General Diagnostics > Engine Tune-Up [L3 WithTC]
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
1. Loosen the cylinder head cover bolts in the order shown in the figure.
Lock Bolt Removal NoteCrankshaft Pulley
1. Rotate the crankshaft in the direction of the engine rotation and remove the cylinder block lower blind plug whenthe No. 1 cylinder is at the point prior to top dead center (TDC) of compression, then install the SST. 2. Rotate the crankshaft in the direction of the engine rotation so that the No. 1 piston is at TDC of the compressionstroke. (Until the crank weight contacts SST and stops.)
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
3. Install the SST to the crankshaft pulley and lock the crankshaft against rotation.
No.3 Removal NoteEngine Mount 1. Remove the windshield wiper arm and blade. 2. Remove the cowl grille. 3. Remove the air cleaner and air cleaner bracket.
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
1) Install the right rear shaft of the SST to the bolt of the right shock absorber as shown in the figure. 2) Install the left rear shaft of the SST to the bolt of the left shock absorber. (identical position to the right side)
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
3) Temporarily tighten the bolt (M6 x 1.0) to the air cleaner bracket installation position and install front foot No. 2to the left/right front shaft of the SST, and align the front shaft hole of the SST with the bolt as shown in the figure. 4) Adjust the positions of the SST side bars so that they are the same height (left and right) and horizontal. 5) Make sure each joint is securely tightened.
6. Support the engine using the SST.
Removal NoteFront Oil Seal
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
4. Press-in the plunger until the ratchet position is as indicated in the figure, and then insert the wire to lock theplunger.
Oil Pump Driven Sprocket Removal Note
1. Temporarily install the crankshaft pulley and crankshaft pulley lock bolt to the crankshaft, and lock the oil pumpagainst rotation as shown in figure. 2. Remove the oil pump driven sprocket, and then remove the crankshaft pulley and crankshaft pulley lock bolt.
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
1. The oil pump drive sprocket has the assembly direction as shown in the figure.
Oil Pump Driven Sprocket Installation Note
1. Temporarily install the crankshaft pulley and crankshaft pulley lock bolt to the crankshaft, and lock the oil pumpagainst rotation as shown in figure. 2. Install the oil pump driven sprocket, and then remove the crankshaft pulley and crankshaft pulley lock bolt.
1. Install the SST to the camshaft as shown in the figure. 2. Install the timing chain. 3. Remove the wire or paper clip from the chain tensioner piston and apply tension to the timing chain.
Front Oil Seal Installation Note 1. Apply clean engine oil to a new front oil seal. 2. Push the front oil seal in the engine front cover by hand.
3. Use the SST to tap in the front oil seal.
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
Front oil seal press-in amount 0-0.5 mm (0-0.019 in)
Engine Front Cover Installation Note 1. Apply silicone sealant to the engine front cover.
Caution - Install the engine front cover within 10 min of applying the silicone sealant. - Silicone sealant is not needed in area C as indicated due to an existing seal.
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
1. Install the SST to the camshaft as shown in the figure. 2. Verify that cylinder No. 1 is at TDC of the compression stroke. (Position crank weight contacts SST.)
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair
3. To position the crankshaft pulley, temporarily tighten it and, using a suitable bolt (M6 X 1.0 length 25-35 mm(0.99-1.3 in), fix the crankshaft pulley to the engine front cover. 4. Install the SSTs to the crankshaft pulley, lock the crankshaft against rotation, and tighten the crankshaft pulleylock bolt using the following two steps.
5. Remove the bolt (M6 X 1.0 length 25-35 mm (0.99-1.3 in) installed to the crankshaft pulley 6. Remove the SST from the camshaft, 7. Remove the SST installed in the cylinder block lower blind plug hole. 8. Rotate the crankshaft clockwise two turns and inspect the valve timing. - If not aligned, repeat from Step 1.
5/18/2020 Removal and Replacement (Timing Chain) - ALLDATA Repair