Oil Pump: Service and Repair

- Tools Required
- KM-498-B Pressure Gauge
- KM-135 Adapter


Removal Procedure
1. Disconnect the negative battery cable.
2. Remove the rear timing belt cover. Refer to Timing Components.





3. Disconnect the oil pressure switch connector.
4. Remove the oil pan.





5. Remove the oil pump/pickup tube and support bracket bolts.
6. Remove the oil pump/pickup tube.





7. Remove the oil pump retaining bolts.
8. Carefully separate the oil pump and gasket from the engine block and oil pan.
9. Remove the oil pump.

Inspection Procedure





1. Clean the oil pump and the engine block gasket mating surface areas.
2. Remove the safety relief valve bolt.
3. Remove the safety relief valve and the spring.
4. Remove the oil pump-to-crankshaft seal.





5. Remove the oil pump rear cover bolts.
6. Remove the rear cover.
7. Clean the oil pump housing and all the oil pump parts.
8. Inspect all the oil pump parts for signs of wear. Refer to Oil Pump, Engine; Specifications. Replace the worn oil pump parts.

Notice: Pack the oil pump gear cavity with petroleum jelly to ensure an oil pump prime, or engine damage could result.

9. Coat all the oil pump parts with clean engine oil. Install the oil pump parts.
10. Apply Loctite(R) 242 to the oil pump rear cover bolts and install the cover and bolts.
Tighten the oil pump rear cover bolts to 6 Nm (53 inch lbs.).
11. Install the safety relief valve, the spring, washer and the bolt.
Tighten the safety relief valve bolt to 30 Nm (22 ft. lbs.).

Installation Procedure
1. Apply Loctite(R) 242 to the oil pump bolts and room temperature vulcanizing (RTV) sealant to the new oil pump gasket.





2. Install the gasket to the oil pump and install the oil pump to the engine block with the bolts.
Tighten the oil pump bolts to 10 Nm (89 inch lbs.).





3. Install a new oil pump-to-crankshaft seal. Coat the lip of the seal with a thin coat of grease.
4. Coat the threads of the oil pump/pickup tube and support bracket bolts with Loctite(R) 242.





5. Install the oil pump/pickup tube and the bolts.
Tighten the oil pump/pick-up tube and support bracket bolts to 10 Nm (89 inch lbs.).
6. Install the oil pan.





7. Connect the oil pressure switch connector.
8. Install the rear timing belt cover. Refer to Timing Components.
9. Connect the negative battery cable.