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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine Mechanical - 4.3L (Unit Repair) >> Repair Instructions >> Camshaft Installation

Camshaft Installation

  1. Apply clean engine oil GM P/N United States 12345610, GM P/N Canada 993193, or equivalent, or engine oil supplement GM P/N United States 1052367, GM P/N Canada 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.
    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.
    Fig 1: Installing Engine Camshaft Using Bolts
    G01660571Courtesy of GENERAL MOTORS CORP.
  4. Remove the 3 bolts from the front of the engine camshaft.
  5. If reusing the fasteners, apply threadlock GM P/N United States 12345382, GM P/N Canada 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.

    Tighten 

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

    Fig 2: Camshaft Retainer & Bolts
    G01660572Courtesy of GENERAL MOTORS CORP.
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