Timing Cover: Service and Repair

Engine Front Cover Replacement
Removal Procedure





1. Remove the drive belt tensioner.
2. Drain the cooling system.
3. Remove the oil pan.
4. Remove the crankshaft balancer.
5. Remove the thermostat bypass pipe from the engine front cover.
6. Remove the radiator outlet hose from the engine front cover.
7. Remove the water pump from the engine front cover.
8. Remove the power steering pump from the engine.
9. Remove the engine front cover bolts (540, 541, and 545).
10. Remove the engine front cover.





11. Remove the engine front cover gasket.
12. Remove the drive belt shield bolt and the drive belt shield, if replacing the engine front cover.
13. Remove the water pump, if replacing the engine front cover.

Installation Procedure





1. Install the engine front cover gasket.
2. Apply sealer GM P/N 12346004 (Canadian P/N 10953480) or equivalent to both sides of the lower tabs of the engine front cover gasket. Apply the sealer no less than 5.0 mm (0.20 inch) wide.





3. Install the engine front cover.
4. Apply sealer GM P/N 12346004 (Canadian P/N 10953480) or equivalent to the bolts in the locations pointed out in the graphic.





Notice: Refer to Fastener Notice in Service Precautions.

5. Install the engine front cover bolts (545).
Tighten the bolts to 27 Nm (20 ft. lbs.).
6. Install the engine front cover bolts (540, 541).
Tighten the bolts to 55 Nm (41 ft. lbs.).
7. Install the power steering pump to the engine.
8. Install the water pump.
9. Install the radiator outlet hose to the engine front cover.
10. Install the thermostat bypass pipe to the engine front cover.
11. Install the crankshaft balancer.
12. Fill the cooling system.
13. Install the drive belt tensioner.