Oil Pump: Testing and Inspection
FRONT CASE1. Check the front case for cracks or damage. Replace as necessary.
2. Check the front oil seal for worn or damaged lips. Replace if defective.
3. Worn (especially stepped) or damaged surfaces contacting gears.
OIL PUMP COVER
Worn (especially stepped) or damaged surfaces contacting gears.
OIL PUMP GEARS
1. Worn or damaged gear tooth surfaces.
2. Clearance between outer gear and front case.
Standard Value:
0.12-0.185mm (0.005-0.007 inch)
3. Check the tip clearance on the pump rotor
Standard Value:
0.025-0.069 mm (0.001-0.003 inch)
4. Check the axial clearance on the outer pump rotor
Standard Value:
0.06-0.11 mm (0.0024-0.0043 inch)
5. Check the axial clearance on the inner pump rotor.
Standard Value:
0.04-0.085 mm (0.0016-0.0033 inch)