Timing Cover: Service and Repair
Engine Front Cover ReplacementRemoval Procedure
1. Remove the drive belt tensioner.
2. Remove the drive belt idler pulley bolt. Remove the drive belt idler pulley.
3. Remove the crankshaft balancer.
4. Remove the right engine mount bracket.
5. Remove the engine front cover bolts.
6. Remove the engine front cover and gasket. The gasket is reusable. Do not discard unless it is damaged.
Installation Procedure
1. Place a small amount of sealant GM P/N 12345739 or equivalent at the split line of the upper and lower crankcases (1).
2. Place the engine front cover gasket over the crankcase dowel pins.
3. Place the engine front cover in position on the crankcase.
4. Install the engine front cover retaining bolts.
Front Cover Tightening Sequence:
Notice: Refer to Fastener Notice in Service Precautions.
5. Tighten the engine front cover bolts in the sequence shown.
^ Tighten the engine front cover bolts in proper sequence to 10 Nm (89 inch lbs.).
6. Install the crankshaft balancer.
7. Install the right engine mount bracket.
8. Install the drive belt idler pulley.
9. Install the drive belt idler pulley bolt.
^ Tighten the drive belt idler pulley bolt to 50 Nm (37 ft. lbs.).
10. Install the drive belt tensioner.