Oil Pump: Service and Repair

OIL PUMP DISASSEMBLY / ASSEMBLY





1. Disassemble in the order indicated in the table.
2. Assemble in the reverse order of disassembly.

INNER ROTOR AND OUTER ROTOR ASSEMBLY NOTE





^ Install the inner rotor and outer rotor into the oil pump body with the marks aligned as shown.

OIL PUMP COVER ASSEMBLY NOTE





^ Install the oil pump cover and tighten the bolts in the order shown.

OIL PUMP INSPECTION
ROTOR CLEARANCE INSPECTION

^ Measure the following clearance. Replace the rotor and/or pump body as necessary.





Standard tip clearance: 0.020 - 0.180 mm (0.0008 - 0.0070 inch)
Maximum tip clearance: 0.20 mm (0.0079 inch)





Standard body clearance: 0.113 - 0.186 mm (0.00445 - 0.00732 inch)
Maximum body clearance: 0.20 mm (0.0079 inch)





Standard side clearance: 0.030 - 0.090 mm (0.00119 - 0.00354 inch)
Maximum side clearance: 0.13 mm (0.0051 inch)

PLUNGER SPRING INSPECTION





^ Measure free length. Replace the plunger spring as necessary.

Free length: 46.79 mm (1.842 inch)