Basicos de Caterpillar 3208

Caterpillar 3208FUEL INJECTION PUMP HOUSING AND GOVERNOR DISASSEMBLY & ASSEMBLY

•Remove Fuel Injection Pump Housing & Governor TOOLS NEEDED A B

3P1544 Timing Pin 1 5P2371 Plate 1OS1616 Bolt ¼”20

NC x 1” long 2

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Start By: a) Removing the air filter b) Removing the fuel injection lines c) Removing air inlet manifold

1. Remove plug from cover in fuel injection pump housing and install tool (A). Turn the crankshaft (clockwise) until the timing pin drops into the grove (slot) in the fuel injection pump camshaft.

2. Remove two nuts (2) and the tachometer drive housing (1)

3. Remove tachometer drive shaft (3)

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4. Install tooling (B) into the camshaft drive gear for the fuel injection pump. Turn bolts (4) evenly until the drive gear is free of the shaft. Remove tooling (B)

5. Remove the plug from the timing hole in the front cover and install a 5/16”-18 NC bolt (5) 2 1/2 in. long. The cover bolt from hole (6) can be used. Turn the crankshaft (clockwise) until bolt can be installed into timing hole. The camshaft for the fuel injection pump is now in correct time to the engine.

6. Remove line (7). Remove bolts (8) from base of the fuel injection pump housing.

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7. Remove the fuel injection pump housing and governor as a unit.

•Install Fuel Injection Pump Housing & Governor

1. Put the fuel injection pump housing and governor in position on the engine. Install the bolts and lines.2. Install the tachometer drive shaft and tighten it to a torque of 110 +- 10 lb. Ft. (149 +- 14 N*m).3. To check the timing, remove the timing pin and the bolt. Turn the crankshaft (clockwise) two revolutions and install the timing pin and bolt back in place. If the timing pin or bolt cannot be installed, the fuel injection pump camshaft must be put into time again before step 4 is done.4. Remove the bolt from the timing gear. Install the plug into the timing hole.5. Remove the timing pin from the timing grove (slot) in the fuel injection pump camshaft6. Install the tachometer drive housing.

End By: a) Installing air inlet manifold b) Installing fuel injection lines c) Installing air cleaner

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PROCEDIMIENTO PARA CALIBRACION DE VALVULAS DEL CATERPILLAR 3208 

Para verificar o realizar el ajuste de la calibración de válvulas en el motor Caterpillar 3208, siga el 

siguiente procedimiento: 

1‐  Remover las tapas de válvulas. 

2‐  Gire el motor en sentido anti‐horario (visto desde la volanta), hasta que el pistón numero 

1 este en el punto muerto superior de inyección, la marca TDC‐1 en el dámper estará en 

alineación con el agujero de trancar el motor. 

3  Haga los ajustes para las válvulas de los cilindros No. 1 y No. 2. (A: 0.015 in., E: 0.025 in.), 

verifique siempre el apriete de la contratuerca, 24 Lb. Pies. Finalmente revise el ajuste de 

las válvulas otra vez. 

4  Gire el motor 180 grados en sentido anti‐horario (visto desde la volanta), hasta alinear la 

marca VS del dámper, con el agujero de trancar el motor. Realice los ajustes para los 

cilindros No. 3 y No. 7. 

5  Gire el motor 180 grados mas, en sentido anti‐horario (visto desde la volanta). Haga los 

ajuste para los cilindros No. 4 y No. 5. 

6  Girar el motor 180 grados en sentido anti‐horario (visto desde la volanta). Hacer los 

ajustes para los cilindros No. 6 y No. 8. 

7  Reinstale las tapas de válvulas con una junta nueva, lávese las manos y tómese un café.  

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