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Camshaft Installation

WARNING: This page is about a different car, the 2003 GMC Safari and 2003 Chevrolet Astro. However, it is still accessible from the selected car via links, so may be relevant.
  1. 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 camshaft bearings
    • The distributor drive gear
  2. Install three 5/16-18 x 4.0 inch bolts into the engine camshaft front bolt holes.
    Fig 1: Removing 3 Bolts From Front Of Engine Camshaft
    G01644059Courtesy of GENERAL MOTORS CORP.
    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.
  3. Use the bolts as a handle in order to install the engine camshaft.
  4. Remove the 3 bolts from the front of the engine camshaft.
  5. If reusing the fasteners, apply threadlock GM P/N 12345382 (Canadian P/N 10953489) or equivalent, to the threads of the camshaft retainer bolts.
    NOTE: Refer to FASTENER NOTICE in Cautions and Notices.
  6. Install the camshaft retainer and bolts.
    Fig 2: Installing Camshaft Retainer Bolts
    G01644060Courtesy of GENERAL MOTORS CORP.

    Tighten 

    Tighten the camshaft retainer bolts to 12 N.m (106 lb in).

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