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. Raise and support the vehicle.
5. Support the engine assembly with a suitable jack.
6. Remove the nut securing the engine mount to the engine mount bracket.
7. Remove the nut (2) securing the power steering hose to the engine mount bracket (1).
8. Remove the bolts (3) securing the engine mount bracket (1) to the engine.
9. Loosen the remaining engine mount bracket bolt (4), enough to allow access to the engine front cover.
10. Position aside the engine mount bracket (1).
11. Remove the engine front cover bolts.
12. 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 (Canadian P/N 10953472), 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.
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 bolts (3) securing the engine mount bracket (1) to the engine.
^ Tighten the engine mount bracket bolts (3, 4) to 50 Nm (37 ft. lbs.).
8. Install the nut (2) securing the power steering hose to the engine mount bracket (1).
^ Tighten the nut to 9 Nm (80 inch lbs.).
9. Install the nut securing the engine mount to the engine mount bracket.
^ Tighten the mount nut to 80 Nm (59 ft. lbs.).
10. Remove the engine support jack.
11. Lower the vehicle.
12. Install the drive belt idler pulley.
13. Install the drive belt idler pulley bolt.
^ Tighten the drive belt idler pulley bolt to 50 Nm (37 ft. lbs.).
14. Install the drive belt tensioner.