Oil Pump: Testing and Inspection
Refer to the illustration, and, using a feeler gauge, ensure that the following clearances are as specified:
- Body to outer gear radial clearance (1) 0.114 - 0.200 mm (0.0045 - 0.0079 inch)
- Inner gear to outer gear tip clearance (2) 0.04 - 0.18 mm (0.0016 - 0.0071 inch)
- Cover to inner gear clearance (3) 0.05 - 0.09 mm (0.0020 - 0.0035 inch)
- Cover to outer gear axial clearance (4) 0.05 - 0.11 mm (0.0020 - 0.0043 inch)
- Inner gear to brazed portion of housing clearance (5) 0.045 - 0.091 (0.0018 - 0.0036 inch)
- If the tip clearance, (2), exceeds the limit, replace the gear set.
- If the body to gear clearances, (1), (3), (4) and (5), exceed the limit, replace the front cover assembly.