63. Oil Pump Installation

Oil Pump Installation





1. Install NEW O-rings (427) onto the oil transfer pipe (428).
2. Install the pipe (428) into the block.
3. Apply sealant GM P/N 12346240 (Canadian P/N 10953493) or equivalent evenly to the block mating surface of the oil pump housing and to the inner threads of the bolt holes.
4. Install the pins (425).
5. Install a NEW O-ring (426).

6. Notice: Refer to Fastener Notice in Service Precautions.

Install the oil pump assembly (424) and bolts (423). Align the flat surfaces of the oil pump inner rotor with the flat surfaces of the crankshaft.
Tighten the bolts to 12 Nm (106 inch lbs.).
7. Apply sealant GM P/N 12346240 (Canadian P/N 10953493) or equivalent to the threads of the switch (705).
8. Install the oil pressure switch (705).
Tighten the switch to 18 Nm (13 ft. lbs.).