Yukon 4WD V8-6.5L DSL Turbo VIN S (1997)
Water Pump: Service and Repair
Replacement, Engine Overhaul
REMOVAL
NOTE: The water pump bolts to the backing plate from the back. Remove the water pump and the backing plate together.
1. Remove the bolts and the stud nuts which hold the water pump and the water pump backing plate to the front crankcase cover.
2. Remove the water pump backing plate and the water pump together.
3. Remove the bolts which hold the water pump to the water pump backing plate.
4. Remove the water pump.
5. Remove the gasket.
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. Install the bolts.
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Apply high temperature thread adhesive GM P/N 12345493, or equivalent, to the bolt threads.
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Tighten the bolts to 28 Nm (20 ft. lbs.).
4. Apply a bead of anaerobic sealer GM P/N 1052942 or the equivalent to the water pump plate.
5. Install the water pump plate to the engine.
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The sealer must be wet to the touch when installing the plate.
