Oil Pump: Service and Repair

Removal Procedure

Notice: Do not raise the engine block by the crankshaft balancer to perform this service procedure. Damage to the crankshaft balancer or the crankshaft may occur.

1. Disconnect the battery negative cable from the battery.
1.1. For the front battery, refer to Battery Cable Replacement (Battery Cable Negative) in Starting and Charging.
1.2. For the auxiliary battery, refer to Battery Cable Replacement (Battery Cable Aux. Negative) in Starting and Charging.
2. Remove the engine cover from the vehicle.
3. Raise the vehicle and support with safety stands.
4. Remove the transmission assembly from the vehicle.
5. Remove the oil pump mounting bolts.





6. Remove the oil pump assembly from the crankshaft rear bearing cap.

Installation Procedure

Important: When servicing the oil pump assembly, always replace the retainer between the oil pump hex drive and the oil pump.

1. Prime the oil pump assembly.
1.1. Submerge the oil pump in a container with clean motor oil.
1.2. Rotate the oil pump hex drive by hand until the oil begins to flow from the oil pump assembly.
1.3. Clean the excess motor oil from the outside of the oil pump assembly.
2. Install a new retainer between the oil pump and the hex drive shaft.
3. Align the extension shaft with the drive shaft to the oil pump drive gear. the oil pump should slide easily into place, do not force the oil pump into place.





4. Install the oil pump and the extension shaft to the crankshaft rear bearing cap.

Notice: Refer to Fastener Notice in Service Precautions.

5. Install the oil pump mounting bolts to the oil pump.
^ Tighten the bolts to 90 Nm (65 ft. lbs.).
6. Install the oil pan to the engine block.
7. Install the transmission assembly in the vehicle.
8. Remove the safety stands and lower the vehicle.
9. Connect the battery negative cables to the batteries.
10. Install the engine cover in the vehicle.