Operation CHARM: Car repair manuals for everyone.

2. Oil Pump Cleaning and Inspection




Oil Pump Cleaning and Inspection




Warning: Refer to Safety Glasses Warning (Safety Glasses Warning).

1. Clean the oil pump and the engine block gasket mating surfaces.
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 of the parts.
8. Inspect all of the parts for signs of wear. Refer to Engine Mechanical Specifications (Service Limits & General Specifications).
9. Coat all of the oil pump parts with clean engine oil.
10. Reinstall all of the oil pump parts.

Caution: Fill oil pump cavities with petroleum jelly prior to installation. This will ensure that there is oil pressure immediately on start-up and will prevent engine damage.

Caution: Refer to Fastener Caution (Fastener Caution).

11. Install the oil pump rear cover and the bolts.

Tighten the oil pump rear cover bolts to 6 Nm (53 lb in).

12. Install the safety relief valve, the spring, the washer, and the bolt.

Tighten the oil pump safety relief valve bolt to 30 Nm (22 lb ft).