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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 8.1L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Stem Oil Seal and Valve Spring Replacement >> Installation Procedure

Installation Procedure

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  1. Lubricate the valve stem and outside diameter of the valve guide seal with clean engine oil.
  2. Lubricate the rotators with clean engine oil.
    IMPORTANT: When installing valve seals, J 43105  must be used to achieve correct installation. See Special Tools . Failure to use J 43105  may cause excessive oil consumption. See Special Tools .
    3. Fig 1: Installing Valve Stem Oil Seal Using J 43105
    GM719126Courtesy of GENERAL MOTORS CORP.
  3. Install the valve stem oil seal (2) over the valve tip and onto the valve guide using J 43105  . See Special Tools . Tap the valve stem seal onto the valve guide until the J 43105  fully seats the seal. See Special Tools .
  4. Install the valve spring cap and the spring.
    5. IMPORTANT: When installing valve springs, the small end of the valve spring must be installed up.
    Fig 2: View Of Valve Stem & Components
    GM677779Courtesy of GENERAL MOTORS CORP.
  5. Install the valve spring (3).
  6. Install the valve spring cap (2).
    7. Fig 3: Compressing Valve Spring Using J 5892-D
    GM1964Courtesy of GENERAL MOTORS CORP.
  7. Using J 5892-D  compress the valve spring.
  8. Install the valve stem keys as follows:
    1. Apply a small amount of clean grease to hold the valve stem keys in place.
    2. Carefully release the J 5892-D  . Make sure the valve stem keys do not move.
    3. Remove the J 5892-D  from the valve assembly.
    4. Remove the compressed air from the cylinder being worked on.
  9. Install the spark plug. Refer to Spark Plug Replacement in Engine Controls - 8.1L.
  10. Install the valve rocker arms and pushrods. Refer to Valve Rocker Arm and Push Rod Replacement .
    Fig 4: View Of Valve Rocker Arms
    GM470899Courtesy of GENERAL MOTORS CORP.
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