Oil Pump Clean and Inspect

1. Use a suitable solvent in order to clean all of the parts of the oil pump. Remove all foreign material.
2. Remove all old gasket material from the front cover and from the engine block.
3. Inspect the pump cover and the front cover for the following damage:
^ Cracks
^ Scoring
^ Porous or damaged casting
^ Damaged threads
^ Excessive wear





4. Inspect the pressure regulator valve for the following damage:
^ Scoring
^ Sticking in the bore
^ Burrs
^ Foreign material
5. Inspect the pressure regulator spring for loss of tension or bending. Replace the spring if the spring is damaged.
6. Inspect the oil pump gears for the following conditions:
^ Chipping
^ Galling
^ Scoring
^ Excessive wear





7. Measure the inner gear tip clearance.





8. Measure the outer gear diameter clearance.





9. Measure the gear end clearance.
10. Measure the pressure regulator valve to bore clearance.