Operation CHARM: Car repair manuals for everyone.

Oil Pump Inspection




When disassembling the transaxle it is necessary
to inspect the oil pump for wear and damage.
1. Remove the reaction shaft support bolts.

Reaction Shaft Support Bolts:





2. Remove reaction shaft support from pump housing.
3. Remove the pump gears and check for wear and damage.
4. Install the gears and check clearances.

Measure Outer Gear To Pocket:





5. Measure the clearance between the outer gear and the pump pocket. Clearance should be 0.045 - 0.141 mm (0.0018 - 0.0056 inch)

Measure Outer Gear To Crescent:





6. Measure the clearance between the outer gear and the pump crescent. Clearance should be 0.020 - 0.046 mm (0.0008 - 0.0018 inch).

Measure Inner Gear To Crescent:





7. Measure the clearance between the inner gear and the pump crescent. Clearance should be 0.020 - 0.046 mm (0.0008 - 0.0018 inch).