64. Camshaft Installation

Camshaft Installation





1. Apply clean engine oil GM P/N 12345610 or equivalent, or engine oil supplement GM P/N 1052367 or equivalent to the following components:
- The engine camshaft lobes
- The camshaft bearing journals
- The camshaft bearings
2. Install three 5/16-18 x 4.0 inch bolts into the engine camshaft front bolt holes.

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.

3. Use the bolts as a handle in order to install the engine camshaft.
4. Remove the 3 bolts from the front of the engine camshaft.





5. If reusing the fasteners, apply threadlock GM P/N 12345382 or equivalent to the threads of the camshaft retainer bolts.

Notice: Refer to Fastener Notice in Service Precautions.

6. Install the camshaft retainer and bolts.
Tighten the camshaft retainer bolts to 12 Nm (106 inch lbs.).