GM Service Manual Online
For 1990-2009 cars only

Removal Procedure

Tools Required

    • J 22794 Spark Plug Port Adapter
    • J 5892-D Valve Spring Compressor
    • J 38606 Valve Spring Compressor
  1. Remove the left valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
  2. Remove the right valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
  3. Remove the valve rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement .
  4. Remove the spark plugs. Refer to Spark Plug Replacement in Engine Electrical.

  5. Object Number: 65039  Size: SH
  6. Install the J 22794 into the spark plug hole.
  7. Apply compressed air in order to hold the valves in place.
  8. Install the valve rocker arm nut.

  9. Object Number: 1964  Size: SH
  10. Use the J 5892-D in order to compress the valve spring.

  11. Object Number: 31730  Size: SH
  12. Use the J 38606 if clearance does not permit use of J 5892-D.

  13. Object Number: 31715  Size: SH
  14. Remove the valve keys (1).
  15. Carefully release the valve spring tension.
  16. Remove the J 5892-D or the J 38606 .
  17. Remove the cap (2), rotator, and spring (4).
  18. Remove the valve seal (3).

Installation Procedure

Tools Required

    • J 22794 Spark Plug Port Adapter
    • J 5892-D Valve Spring Compressor
    • J 38606 Valve Spring Compressor

    Object Number: 31715  Size: SH
  1. Install the new valve seal (3) over the valve stem and seat it against the head.
  2. Install the cap (2), rotator, and spring (4).
  3. Use the J 5892-D in order to compress the valve spring.

  4. Object Number: 66450  Size: SH
  5. Use the J 38606 if clearance does not permit use of J 5892-D.
  6. Install the valve keys (1). Use grease in order to hold the valve keys in place.

  7. Object Number: 1964  Size: SH
  8. Carefully release the valve spring pressure, making sure the valve keys stay in place.

  9. Object Number: 65039  Size: SH
  10. Remove the J 5892-D or J 38606 and the J 22794 .
  11. Install the spark plugs. Refer to Spark Plug Replacement in Engine Electrical.
  12. Install the valve rocker arms. Refer to Valve Rocker Arm and Push Rod Replacement .
  13. Install the left valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .
  14. Install the right valve rocker arm cover. Refer to Valve Rocker Arm Cover Replacement .