- Lubricate the following components with clean engine oil GM P/N 12345610 or equivalent or engine oil supplement GM P/N 1052367 or equivalent:
- Install the three 5/16-18 x 4.0 inch bolts in the engine camshaft bolt holes.
- Install the engine camshaft using the bolts as a handle.
- Remove the three bolts from the engine camshaft.
- Install the camshaft retainer and bolts.
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.
| • | The engine camshaft lobes |
| • | The camshaft bearing journals |
| • | The camshaft bearings |
Notice: Use the correct fastener in the correct location. Replacement fasteners must be the correct part number for that application. Fasteners requiring replacement or fasteners requiring the use of thread locking compound or sealant are identified in the service procedure. Do not use paints, lubricants, or corrosion inhibitors on fasteners or fastener joint surfaces unless specified. These coatings affect fastener torque and joint clamping force and may damage the fastener. Use the correct tightening sequence and specifications when installing fasteners in order to avoid damage to parts and systems.
Tighten
Tighten the camshaft retainer bolts to 12 N·m (106 lb in).
