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Home >> Hummer >> 2008 >> H2 4D Utility Wagon >> Repair and Diagnosis >> External Pages >> Different car >> Section 126 (Engine Mechanical - 4.8L, 5.3L, 6.0L And 6.2L (2 Of 5)) >> On-Vehicle Repair Instructions (1 Of 2) >> Valve Rocker Arm and Push Rod Replacement >> Removal Procedure

Removal Procedure

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    Fig 1: View Of Rocker Arms & Bolts
    GM260140Courtesy of GENERAL MOTORS CORP.
  1. Remove the rocker arm cover. Refer to Valve Rocker Arm Cover Replacement - Left Side  or Valve Rocker Arm Cover Replacement - Right Side .
    2. IMPORTANT: The engine firing order is 1, 8, 7, 2, 6, 5, 4, 3. Cylinders 1, 3, 5 and 7 are the left bank.
  2. Remove the number one cylinder spark plug. Refer to Spark Plug Replacement .
    3. IMPORTANT: Place the rocker arms, pushrods, and pivot support, in a rack so that they can be installed in the same location from which they were removed.
  3. Remove the rocker arm bolts.
  4. Remove the rocker arms.
    5. Fig 2: View Of Valve Rocker Arm Pivot Support
    GM260141Courtesy of GENERAL MOTORS CORP.
  5. Remove the rocker arm pivot support.
    6. Fig 3: View Of Pushrods
    GM260142Courtesy of GENERAL MOTORS CORP.
  6. Remove the pushrods.
  7. Clean and inspect the rocker arms and pushrods, if required. Refer to Valve Rocker Arm and Push Rods Cleaning and Inspection .
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