Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Fig 1: Using Bolts To Handle Camshaft

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: Whenever a new camshaft is installed, perform the following:

Change the engine oil and filter.
Add engine oil supplement GM P/N 1052367 (Canadian P/N 992869), or equivalent, to the engine oil.

Apply lubricant GM P/N 12345501 (Canadian P/N 992704), or equivalent, or engine oil supplement GM P/N 1052367 (Canadian P/N 992869), or equivalent, to the following components:
- The engine camshaft lobes
- The camshaft bearing journals
- The camshaft bearings
Install three 5/16-18 x 4.0 inch bolts into the engine camshaft front bolt holes.

NOTE: 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.

Using the bolts as a handle, install the engine camshaft.
Remove the 3 bolts from the front of the engine camshaft.

Fig 2: View Of Camshaft Retainer & Bolts

Courtesy of GENERAL MOTORS CORP.

If reusing the fasteners, apply Threadlocker GM P/N 12345382 (Canadian P/N 10953488), or equivalent, to the threads of the camshaft retainer bolts.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the camshaft retainer and bolts.
Tighten: Tighten the bolts to 12 N.m (106 lb in).
Install the balance shaft drive gear. Refer to Balance Shaft Installation , for alignment of the balance shaft drive gear and the driven gear.
Install the timing chain and camshaft sprocket. Refer to Timing Chain, Sprockets, and/or Tensioner Replacement .
Install the lifters. Refer to Valve Lifter Replacement .
Install the A/C condenser. Refer to Condenser Replacement in Heating, Ventilation, and Air Conditioning.
Install the radiator. Refer to Radiator Replacement (4.3, 4.8, 5.3, and 6.0L) or Radiator Replacement (Diesel) or Radiator Replacement (8.1L) in Engine Cooling.