GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 8062 Valve Spring Compressor - Head Off


    Object Number: 1552463  Size: SH
  1. Clean the cylinder head valve spring shim area.
  2. Important: When using the valves and related components again, install the parts to their original location.

  3. Install the valves (227). Refer to Separating Parts .
  4. Install the valve stem oil seal (222).
  5. Install the valve spring (223).
  6. Install the valve spring cap (224).

  7. Object Number: 260151  Size: SH
  8. Using the J 8062 , compress the valve spring.
  9. Install the valve stem keys.
  10. 7.1. Use grease in order to hold the keys in place.
    7.2.  Remove the J 8062 .
    7.3. Ensure the keys seat properly in the groove of the valve stem.
    7.4. Using a plastic face hammer, tap the end of the valve stem in order to seat the keys, if necessary.

    Object Number: 1552463  Size: SH
  11. Install the intake valve rocker arm wear pads (234).

  12. Object Number: 1552454  Size: SH
  13. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the coolant temperature sensor.
  14. Notice: Refer to Fastener Notice in the Preface section.

  15. Install the coolant temperature sensor into the left cylinder head.
  16. Tighten
    Tighten the coolant temperature sensor to 20 N·m (15 lb ft).


    Object Number: 1552455  Size: SH
  17. Install sealant GM P/N 12346004 (Canadian P/N 10953480), or equivalent, to the threads of the cylinder head plug (229).
  18. Install the cylinder head plug to the right cylinder head.
  19. Tighten
    Tighten the cylinder head plug to 20 N·m (15 lb ft).