81. Water Pump Installation

1. Clean the sealing surfaces on the water pump plate and the block.
2. Install the water pump and the gasket to the water pump plate.
3. Apply high temperature thread adhesive GM P/N 12345493, or equivalent, to the bolt threads.

Notice: Refer to Fastener Notice in Service Precautions.

4. Install the bolts.
^ Tighten the bolts to 28 Nm (20 lb ft).





5. Apply a bead of anaerobic sealer GM P/N 1052942 or the equivalent to the water pump plate.





6. Install the water pump plate to the engine.
^ The sealer must be wet to the touch when installing the plate.
^ Apply the sealant GM P/N 12346004, or equivalent, to the threads of the bolts and studs.
7. Install the bolts and studs.
^ Tighten the water pump to the front cover bolts to 42 Nm (32 lb ft).
^ Tighten the water pump plate to front cover bolts to 28 Nm (20 lb ft).