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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 1162 (Engine Mechanical - 5.7L) >> Repair Instructions >> On-Vehicle Repair Instructions >> Valve Stem Oil Seal and Valve Spring Replacement >> Removal Procedure

Removal Procedure

WARNING: This page is about a different car, the 2003 Chevrolet Corvette. However, it is still accessible from the selected car via links, so may be relevant.
  1. Remove the rocker arm. Refer to VALVE ROCKER ARM AND PUSH ROD REPLACEMENT  .
  2. Disconnect the spark plug wire at the spark plug.
    Fig 1: Removing Spark Plug Wire
    G01970487Courtesy of GENERAL MOTORS CORP.
    • Twist each plug wire boot 1/2 turn.
    • Pull only on the boot in order to remove the wire from the spark plug.

    Important:  Remove the spark plugs from the cylinder head with the engine at room temperature.

  3. Loosen the spark plug 1 or 2 turns.
  4. Brush or air blast away any dirt or debris from around the spark plug.
  5. Remove the spark plug.
    Fig 2: Removing Spark Plug
    G01970488Courtesy of GENERAL MOTORS CORP.
  6. Install the J 22794  into the spark plug hole.
  7. Attach an air hose to the J 22794  .
  8. Apply compressed air to the J 22794  in order to hold the valves in place.
    Fig 3: Holding Valves In Place
    G01970489Courtesy of GENERAL MOTORS CORP.
  9. Use the J 38606  in order to compress the valve spring.
    Fig 4: Compressing Valve Spring
    G01970490Courtesy of GENERAL MOTORS CORP.
  10. Remove the valve stem keys (2).
    Fig 5: Locating Valve Spring Components
    G01970491Courtesy of GENERAL MOTORS CORP.
  11. Carefully release the valve spring tension.
  12. Remove the J 38606  .
  13. Remove the valve spring cap (3).
  14. Remove the valve spring (4).
  15. Remove the valve stem oil seal and shim (1, 5)
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