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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1021 (Engine Mechanical - 8.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Lifter Replacement >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2004 GMC Sierra, 2004 GMC Cab & Chassis Sierra, 2004 Chevrolet Silverado, and 2004 Chevrolet Cab & Chassis Silverado. However, it is still accessible from the selected car via links, so may be relevant.
IMPORTANT: If a new camshaft is installed, replace all the valve lifters.
  1. Coat the valve lifter rollers with lubricant GM U.S. P/N 12345501, Canada P/N 992704, or equivalent.
    IMPORTANT: If reusing the valve lifters, install the lifters in their original location. The valve lifter guide retainer must contact all of the valve lifter guides. If the lifter guide retainer is bent, the valve lifter guide retainer must be replaced.
  2. Install the valve lifters.
    3. Fig 1: View Of Valve Lifters
    GM470996Courtesy of GENERAL MOTORS CORP.
  3. Install the valve lifter guides over the flats on the valve lifters, making sure the rollers of the valve lifters are properly aligned with the camshaft lobes.
  4. Install the valve lifter guide retainer.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  5. Install the valve lifter guide retainer bolts.

    Tighten:  Tighten the valve lifter guide retainer bolts to 25 N.m (18 lb ft).

    6. Fig 2: View Of Valve Lifter Guide Retainer & Bolts
    GM470994Courtesy of GENERAL MOTORS CORP.
  6. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .

    Install the intake manifold. Refer to Intake Manifold Replacement .

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