Oil Pump Disassemble

1. Drain the oil from the oil pump.
2. Remove the drive shaft.





3. Remove the oil pump cover bolts.





4. Remove the oil pump cover.

IMPORTANT: Do not remove the pickup tube from the cover unless the pickup tube is loose or broken.





5. Remove the oil pump gears.





6. Remove the pressure regulator valve components in the following order:

CAUTION: In some models, the pressure regulator valve spring is under pressure. Remove the retaining pin carefully in order to avoid bodily injury.

6.1. Remove the cotter pin.
6.2. Remove the spring.
6.3. Remove the pressure regulator valve. If the valve is stuck, soak the pump housing in carburetor cleaning solvent.

CAUTION: Bodily injury may occur if the cleaning solvent is inhaled or exposed to the skin.