Camshaft: Service and Repair

Removal Procedure





1. Remove the grille.
2. Remove the radiator.
3. Remove the Air Conditioning (A/C) condenser.
4. Remove the valve lifters.
5. Remove the timing chain and sprockets.
6. Remove the camshaft retainer bolts and the retainer.





7. Install three 8-1.25 x 100 mm bolts into the camshaft front bolt holes.
8. Using the bolts as a handle, carefully rotate and pull the camshaft out of the engine block.
9. Remove the bolts from the front of the camshaft.
10. Clean and inspect the camshaft.

Installation Procedure





1. Lubricate the following components with clean engine oil, engine oil supplement GM P/N 1052367 or equivalent.
^ The camshaft lobes
^ The camshaft bearing journals
^ The camshaft bearings





Notice: All camshaft journals are the same diameter, so care must be used in removing or installing the camshaft to avoid damage to the camshaft bearings.

2. Install three 8-1.25 x 100 mm bolts into the camshaft front bolt holes.
3. Use the bolts as a handle, carefully install the camshaft.
4. Remove the bolts from the front of the camshaft.

Notice: Refer to Fastener Notice in Service Precautions.

5. Install the camshaft retainer and bolts
^ Tighten the camshaft retainer bolts to 12 Nm (106 inch lbs.).
6. Install the timing chain and sprockets.
7. Install the valve lifters.
8. Install the A/C condenser.
9. Install the radiator.
10. Install the grille.