Oil Pump: Service and Repair

Oil Pump, Screen, and Crankshaft Oil Deflector Replacement

Tools Required

J 41480 Front and Rear Cover Alignment

Removal Procedure

1. Remove the engine front cover.
2. Remove the engine oil pan.




3. Remove the oil pump suction pipe (407), bolts (405) and gasket (406) from the oil pan.




4. Remove the crankshaft oil deflector nuts (403).
5. Remove the crankshaft oil deflector (425).




6. Remove the oil pump bolts (411).

Important: Do not allow dirt or debris to enter the oil pump assembly. Cap the ends as necessary.

7. Remove the oil pump (413).

Installation Procedure





Important: Inspect the oil pump and engine block oil galley passages to make sure they are clear and free of debris or restrictions.

1. Align the splines of the crankshaft sprocket to the oil pump drive gears and install the oil pump (413) until the pump housing contacts the face of the engine block.
2. Loosely install the oil pump bolts (411). DO NOT tighten down the bolts at this time.




3. Align the oil pump surfaces (1) with the engine block surfaces (2). The oil pump must be aligned flush or no greater than 0.1 mm (0.04) below the engine block pan rail.





Notice: Refer to Fastener Notice.

4. Install the J 41480 and bolts to the engine block.

Tighten the J 41480 bolts to 25 N.m (18 lb ft).

5. Firmly push the oil pump until the pump surfaces contact the J 41480. While holding the oil pump to the J 41480, tighten the oil pump bolts.

Tighten the oil pump bolts to 25 N.m (18 lb ft).




6. Install the crankshaft oil deflector (425) and nuts (403).
Make sure the deflector has correct orientation to the engine by placing the stamped "REAR" casting on the deflector at the rear of the engine block.




7. Install the oil pump suction pipe gasket (406), pipe (407) and bolts (405) to the oil pan.

Tighten the oil pump suction pipe bolts to 12 N.m (106 lb in).

8. Install the engine oil pan.
9. Install the engine front cover.