Oil Pump: Testing and Inspection
Oil PumpCAUTION: Do not attempt to remove oil pump drive gear from inner rotor.
1. Thoroughly clean oil pump drive gear, cover plate, rotors and housing. Remove all traces of Loctite from cover plate securing screws; ensure tapped holes in timing cover are clean and free from oil.
2. Check mating surfaces of cover plate, rotors and housing for scoring.
3. Assemble rotors and oil pump drive gear in housing ensuring that reference marks are aligned.
4. Using feeler gauges, check clearance between teeth of inner and outer rotors:
Maximum Clearance: 0.25 mm
5. Place a straight edge across housing.
6. Using feeler gauges, check clearance between straight edge and rotors:
Maximum Clearance: 0.1 mm