Disassembly and Assembly

DISASSEMBLE
1. Remove the relief valve as follows:
a. Remove cotter pin. Drill a 3.175 mm (1/8 in.) hole into the relief valve retainer cap and insert a self-threading sheet metal screw into cap.

Oil Pressure Relief Valve:

b. Clamp screw into a vise and while supporting oil pump, remove cap by tapping pump body using a soft hammer. Discard retainer cap and remove spring and relief valve.

Oil Pump:

2. Remove oil pump cover.
3. Remove pump outer rotor and inner rotor with shaft.
4. Wash all parts in a suitable solvent and inspect carefully for damage or wear.

ASSEMBLE
1. Install pump rotors and shaft, using new parts as required.
2. Position the oil pump cover onto the pump body. Tighten cover bolts to 11 Nm (95 inch lbs.) torque.
3. Install the relief valve and spring. Insert the cotter pin.
4. Tap on a new retainer cap.
5. Prime oil pump before installation by filling rotor cavity with engine oil.

CLEANING
Clean the block and pan gasket surfaces.
Trim or remove excess sealant film in the rear main cap oil pan gasket groove. DO NOT remove the sealant inside the rear main cap slots.
If present, trim excess sealant from inside the engine.
Clean oil pan in solvent and wipe dry with a clean cloth.
Clean oil screen and pipe thoroughly in clean solvent. Inspect condition of screen.