Camshaft Cover Replacement (Left)
REMOVAL PROCEDURE^ Tools Required
- J 38825 Water Pump Drive Pulley Remover
Caution: Refer to Battery Disconnect Caution in Service Precautions.
1. Disconnect the negative battery cable.
2. Remove the intake manifold sight shield.
3. Raise the vehicle.
4. Partially drain the cooling system.
5. Remove the oil level indicator and tube.
6. Disconnect the upper radiator hose at the radiator.
7. Disconnect the spark plug wires on the left hand cylinder head and move aside.
8. Remove the upper tie-bar assembly.
9. Remove the PCV fresh air tube from the camshaft cover.
10. Remove the air cleaner outlet duct.
11. Remove the EGR outlet pipe.
12. Remove the water pump drive belt shield retaining nuts and bolts.
13. Remove the water pump drive belt shield.
14. Remove the water pump drive belt by compressing the belt tensioner (1) while sliding the belt off the drive pulley.
15. Remove the water pump drive belt tensioner.
16. Remove the water pump drive pulley from the intake camshaft. Use the J 38825.
17. Remove the camshaft seal retaining screws and the seal.
18. Remove the camshaft cover bolts.
19. Remove the camshaft cover using the following steps:
20. Lift up the front of the cover approximately 10 inches.
21. Lift the rear exhaust edge while holding the front suspended.
22. Swing the front of the cover over the intake manifold while sliding the entire cover over the end of the camshaft.
23. The camshaft cover seals (perimeter and sparkplug) should be reused unless they are damaged or if the perimeter seal is pulled from its groove during removal.
INSTALLATION PROCEDURE
^ Tools Required
- J 38823 Water Pump Drive Pulley Installer
1. Install new spark plugs if required.
2. Install a new camshaft cover seal if required.
3. Place the camshaft cover on the cylinder head using the following procedure:
3.1. Insert the intake camshaft end through the hole in the end of the camshaft cover.
3.2. Using your fingers, guide the camshaft cover up over the edge of the cylinder head. Be careful not to damage the exposed section of the camshaft cover seal on the edge of the cylinder head.
3.3. Work the camshaft cover into position by pivoting the cover down and to the left allowing the cover to clear the camshaft drive chain and then aligning the bolt holes.
Notice: Refer to Fastener Notice in Service Precautions.
4. Install the camshaft cover bolts.
^ Tighten the bolts to 10 Nm (89 inch lbs.).
5. Lubricate the camshaft seal lips with engine oil.
6. Push the camshaft seal into position around the intake camshaft.
7. Coat the seal retaining screws with sealant, GM P/N 1052080, or equivalent. Install the screws.
^ Tighten the camshaft cover seal screws to 3 Nm (27 inch lbs.).
8. Install the water pump pulley on the intake camshaft using the J 38823.
9. Install the water pump drive belt tensioner
^ Tighten tensioner to 10 Nm (89 inch lbs.). Feed the water pump drive belt (4) around the water pump pulley (2) and the water pump drive belt tensioner (3).
10. Compress the drive belt tensioner (3). Feed the drive belt around the camshaft pulley (1).
11. Check the drive belt for proper seating.
12. Install the water pump drive belt shield.
13. Install the water pump shield retaining nuts and bolts.
^ Tighten the water pump shield retaining nuts to 10 Nm (89 inch lbs.).
14. Install the EGR outlet pipe.
15. Connect the upper radiator hose.
16. Connect the air intake hose.
17. Install the PCV fresh air tube.
18. Connect the spark plug wires.
19. Install the upper tie bar assembly.
20. Raise the vehicle.
21. Install the oil level tube and indicator.
22. Lower the vehicle.
23. Refill the cooling system.
24. Install the intake manifold sight shield.
25. Connect the negative battery cable.