Camshaft Installation

1. Lubricate the following components with clean engine oil GM P/N 12345610 or equivalent or engine oil supplement GM P/N 1052367 or equivalent:
^ The engine 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 the three 5/16-18 x 4.0 inch bolts in the engine camshaft bolt holes.
3. Install the engine camshaft using the bolts as a handle.
4. Remove the three bolts from the engine camshaft.





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

NOTICE: Refer to Fastener Notice in Service Precautions.