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Home >> GMC >> 2005 >> Sierra 1500 HD, 4WD >> Repair and Diagnosis >> External Pages >> Different car >> Section 174 (Engine Mechanical - 3.6L (Ly7) (2 Of 6)) >> On-Vehicle Repair Instructions - Part 1 >> Valve Stem Oil Seal And Valve Spring Replacement - Left >> Installation Procedure

Installation Procedure

WARNING: This page is about a different car, the 2005 Cadillac STS. However, it is still accessible from the selected car via links, so may be relevant.
    Fig 1: Removing/Installing Valve Stem Seal
    GM1338340Courtesy of GENERAL MOTORS CORP.
  1. Use the EN 46116  (1) in order to install the valve stem seal (2). See Special Tools .
    2. Fig 2: View Of Valve Spring
    GM902899Courtesy of GENERAL MOTORS CORP.
  2. Install the valve spring.
  3. Install the valve spring retainer.
    4. Fig 3: View Of Installed Valve Spring Compressor Tool
    GM1338337Courtesy of GENERAL MOTORS CORP.
  4. Install the EN 46110  above the applicable valve spring as shown. See Special Tools .

    Tighten the EN 46110  valve spring compressor nut (2). See Special Tools .

    5. Fig 4: View Of Valve Spring Keepers
    GM902903Courtesy of GENERAL MOTORS CORP.
  5. Install the valve spring keepers.
  6. Remove the EN 46110  . See Special Tools .
  7. Disconnect the J 39313  from the compressed air source. See Special Tools .
  8. Remove the J 39313  . See Special Tools .
  9. Install the spark plugs. Refer to Spark Plug Replacement in Engine Controls - 3.6L (LY7).
  10. Install the rocker arms and camshafts. Refer to Camshaft Replacement - Left .
  11. Remove the EN 46106  in order to prevent crankshaft rotation. See Special Tools .
  12. Install the starter motor. Refer to Starter Motor Replacement (LY7) or Starter Motor Replacement (LH2) in Engine Electrical.
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