For 1990-2009 cars only
- Select the oil pump drive to crankshaft balancer friction washer (3). The outer diameter is 45.5 mm (1.7913 in) and an inner diameter of 35.25 mm (1.3878 in).
- Install the oil pump drive to crankshaft balancer friction washer.
- Place a small amount of sealant GM P/N 12378521 (Canadian P/N 88901148) or equivalent at the split line of the upper and lower crankcases (1).
- Place the NEW engine front cover gasket over the crankcase dowel pins.
- Place a small amount of sealant GM P/N 12378521 (Canadian P/N 88901148) or equivalent at the engine front cover gasket pad area located on top of the split line of the upper and lower crankcases (1).
- Place the engine front cover in position on the crankcase.
- Apply the thread locking compound GM P/N 12345382 (Canadian P/N 10953489) or equivalent to the threads of the engine front cover bolts.
- Install the engine front cover bolts.
- Tighten the engine front cover bolts in the sequence shown. Tighten the engine front cover bolts in proper sequence to 15 N·m (11 lb ft).
- Install the water pump pulley.
- Install the water pump pulley bolts and tighten to 10 N·m (89 lb in).
Note: Ensure the proper friction washer is installed in the correct position.
Caution: Refer to Fastener Caution in the Preface section.
