Oil Pump: Testing and Inspection

Oil Pump

INSPECTION

TIP CLEARANCE
Measure the tip clearance of rotors. If the clearance exceeds specification, 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 specification, replace the rotors as a matched set.





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