Disassembly and Assembly

1. Remove the pressure relief valve by remove the threaded retaining cap from the oil pump housing.

Figure 87-Oil Pressure Relief Valve:

CAUTION: Oil pump pressure relief valve must be installed as shown or engine damage may occur.

2. Remove spring and relief valve.

Figure 88-Oil Pump:

3. Remove oil pump cover screws and lift off cover plate.
4. Remove pump rotors.
5. Wash all parts in a suitable solvent and inspect carefully for damage or wear.
6. Tighten cover screws to 12 Nm (105 inch lbs.). Tighten oil pressure relief valve retaining cap to 12 Nm (105 inch lbs.).