Oil Pump: Service and Repair

COMPONENT

REMOVAL
1. Remove the collector cover.





2. Disconnect the ground cable from battery.
3. Lift-up the vehicle.
4. Remove the under cover.
5. Drain engine coolant.
6. Lower the vehicle.
7. Remove the radiator.
8. Remove the V-belts.
9. Remove the front chain cover.
10. Remove the timing chain.
11. Remove the crank sprocket.





12. Remove the oil pump cover.
13. Remove the inner rotor and outer rotor.

INSTALLATION





1. Apply a coat of engine oil to the whole area of inner rotor and outer rotor.
2. Set the inner rotor onto opening edge of crank shaft, and install the inner rotor, and then assemble the outer rotor.
3. Install the oil pump cover.





4. Tighten the bolts in the numerical order as shown in the figure.

CAUTION: Ensure that the bolt is installed in correct position.

5. Install the crank sprocket.
6. Install the timing chain.
7. Install the front chain cover.
8. Install the V-belts.
9. Install the radiator.
10. Install the under cover.
11. Fill engine coolant.

INSPECTION
TIP CLEARANCE





Measure the tip clearance of rotors. If the clearance exceeds the standard value, replace the rotors as a matched set.

CASE CLEARANCE





Measure the clearance between the outer rotor and rear chain cover rotor housing. If the clearance exceeds the standard value, replace the outer rotor.

SIDE CLEARANCE





Measure the clearance between oil pump inner rotor and rear chain cover. If the clearance exceeds the standard value, replace rotors as a matched set.

OIL PUMP CASE
Check the worn shaft hole, clogged oil passage, crank and other parts for faults.