- Apply clean engine oil GM P/N 12345610 (Canadian P/N 993193) or equivalent, or engine oil supplement
GM P/N 1052367 (Canadian P/N 992367) or equivalent, to the following components:
| • | The engine camshaft lobes |
| • | The camshaft bearing journals |
| • | The distributor drive gear |
- Install three 5/16-18 x 4.0 inch bolts into the engine camshaft front bolt holes.
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.
- Use the bolts as a handle in order to install the engine camshaft.
- Remove the 3 bolts from the front of the engine camshaft.
- If reusing the fasteners, apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent, to
the threads of the camshaft retainer bolts.
Caution: Refer to Fastener Caution in the Preface section.
- Install the camshaft retainer and bolts and tighten to
12 N·m (106 lb in).
