For 1990-2009 cars

### Cleaning Procedure

1. Clean the oil pump components with non-corrosive solvent.

Warning: Wear safety glasses when using compressed air in order to prevent eye injury.

2. Dry the oil pump components with compressed air.

### Inspection Procedure

Note: There are no serviceable components within the oil pump. Disassemble the pump only to diagnose an oiling concern. A disassembled oil pump can be reused, after it is assembled.

Inspect the oil pump housing for the following:

• | Damage to the sealing surface between the oil pump cover and the oil pump housing (1, 4)

• | Damage, scoring, or debris in the oil pump output port and the oil pump input port (2)

• | Damage to the sealing surface between the oil pump housing and the oil pan (3)

• | Damage, scoring, or debris on the housing surface for the drive gear (5)