Oil Pump

OIL PUMP

Oil Pump:

DISASSEMBLY




1. Remove pump cover from pump housing.
2. Stake off retaining pin with a punch [outer dia. 1.5 to 1.8 mm (0.059 to 0.071 in.)], then remove lock-up control valve and spring.

INSPECTION




1. Inspect pump body, bushing and pump shaft, for wear.
2. Inspect gears, lock up control valve, spring and all internal surfaces for damage and visible wear.




3. Measure clearance between outer gear and crescent.




4. Measure clearance between outer gear and pump housing.




5. With a feeler gauge and straight edge, measure clearance between gears and pump cover.

ASSEMBLY




1. Install lock-up control valve and spring into oil pump cover, then tap new retaining pin.
2. Mount pump housing in Tool and suitable spacer. Set up pump housing with inner and outer pump gears on it and install pump cover to pump housing. Temporarily assemble oil pump.




3. Set the cover to within the run-out of the specified total indicator reading.
4. Tighten pump securing bolts to the specified torque.
Recheck run-out.