LEMON Manuals: Even more car manuals for everyone
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 Rocker Arm and Push Rod 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: Be sure to keep parts in order. Parts must be put back from where they were removed.
  1. Apply sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent to the valve rocker arm stud-to-cylinder head threads.
    NOTE: Refer to Fastener Notice in Cautions and Notices.
  2. Install the pushrod guides and valve rocker arm studs.

    Tighten:  Tighten the studs to 50 N.m (37 lb ft).

    3. Fig 1: View Of Valve Rocker Arm Studs & Pushrod Guides
    GM470906Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The exhaust valve pushrods (2) are longer than the intake valve pushrods (1).
  3. Install the valve pushrods.
    4. Fig 2: View Of Intake & Exhaust Valve Pushrods
    GM470903Courtesy of GENERAL MOTORS CORP.
  4. Coat the valve rocker arm and valve rocker arm ball bearing surfaces with lubricant GM P/N 12345501 (Canadian P/N 992704), or equivalent.
  5. Install the valve rocker arms, the valve rocker arm balls, and the valve rocker arm nuts.

    Tighten:  Tighten the nuts slowly to 35 N.m (26 lb ft) while guiding the tips of the rocker arms over the tips of the valves.

    6. Fig 3: View Of Valve Rocker Arms
    GM470899Courtesy of GENERAL MOTORS CORP.
  6. Install the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left  or Valve Rocker Arm Cover Replacement - Right .
scientia non olet · About LEMON Manuals