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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 Rocker Arm and Push Rod Replacement >> Removal Procedure

Removal 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: Mark, organize, and sort the cylinder head components. Return the components to their original location during reassembly.
  1. Remove the valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left  and/or Valve Rocker Arm Cover Replacement - Right .
  2. Remove the valve rocker arm nuts, the valve rocker arm balls, and valve rocker arms.
    3. Fig 1: View Of Valve Rocker Arms
    GM470899Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: The exhaust valve pushrods (2) are longer than the intake valve pushrods (1).
  3. Remove the valve pushrods.
    4. Fig 2: View Of Intake & Exhaust Valve Pushrods
    GM470903Courtesy of GENERAL MOTORS CORP.
  4. Remove the valve rocker arm studs and pushrod guides.
    5. Fig 3: View Of Valve Rocker Arm Studs & Pushrod Guides
    GM470906Courtesy of GENERAL MOTORS CORP.
  5. Clean and inspect the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rods Cleaning and Inspection .
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