Removal Procedure
- Remove the cooling layer. Refer to
Cooling Layer Removal.
- Remove the valve lifters. Refer to
Valve Lifter Replacement.
- Remove the timing chain and sprocket. Refer to
Camshaft Timing Chain and Sprocket Replacement.
- Remove the camshaft retainer bolts and retainer.
- Install three 8-1.25 X 100 mm bolts into the camshaft front bolt holes.
- Using the bolts as a handle, carefully rotate and pull the camshaft out of the engine block.
- Remove the bolts from the front of the camshaft.
- Clean and inspect the camshaft.
Installation Procedure
- Lubricate the following components with clean engine oil, engine oil supplement GM P/N 1052367 (Canadian P/N 992869) or equivalent.
| • | The camshaft bearing journals |
| | Caution: 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.
|
- Install three 8-1.25 X 100 mm bolts into the camshaft front bolt holes.
- Using the bolts as a handle, carefully install the camshaft.
- Remove the bolts from the front of the camshaft.
Caution: Refer to Fastener Caution in the Preface section.
- Install the camshaft retainer and bolts.
Tighten
Tighten the camshaft retainer bolts to 12 N·m (106 lb in).
- Install the timing chain sprocket. Refer to
Camshaft Timing Chain and Sprocket Replacement.
- Install the valve lifters. Refer to
Valve Lifter Replacement.
- Install the cooling layer. Refer to
Cooling Layer Installation.
