GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 35268-A Camshaft/Front Main Seal Installer

Removal Procedure


    Object Number: 894329  Size: SH
  1. Disconnect the negative battery cable.
  2. Remove the air cleaner assembly.
  3. Remove the intake manifold. Refer to Intake Manifold Replacement .

  4. Object Number: 894853  Size: SH
  5. Remove the relevant camshaft cover. Refer to Camshaft Cover Replacement .

  6. Object Number: 894687  Size: SH
  7. Remove the front timing belt cover. Refer to Timing Belt Front Cover Replacement .
  8. Remove the timing belt. Refer to Timing Belt Front Cover Replacement .
  9. Remove the relevant camshaft gears. Refer to Camshaft Drive Sprocket Replacement .
  10. Remove the relevant camshafts with the seal attached. Refer to Camshaft Cover Replacement .

  11. Object Number: 896488  Size: SH
  12. Remove the lifters. Use the magnet to lift out the lifters.
  13. Place the lifters in the rack sequentially so they can be reinstalled in their original order if the lifters are to be reused.

Installation Procedure


    Object Number: 896488  Size: SH
  1. Lubricate the lifters with clean engine oil.
  2. Install the lifters in their original position, if not replaced.

  3. Object Number: 895686  Size: SH
  4. Install the relevant camshafts. Refer to Camshaft Cover Replacement .

  5. Object Number: 894897  Size: SH
  6. Coat the lip of the camshaft seal with a small amount of clean engine oil to aid in installation.
  7. Use the J 35268-A to install the seal.
  8. Ensure that the camshaft seal is fully and evenly seated.

  9. Object Number: 894899  Size: SH
  10. Install the relevant camshaft gears. Refer to Camshaft Drive Sprocket Replacement .

  11. Object Number: 894190  Size: SH
  12. Install the timing belt and adjust the timing belt. Refer to Timing Belt Replacement .
  13. Install the front timing belt cover. Refer to Timing Belt Front Cover Replacement .

  14. Object Number: 894324  Size: SH
  15. Install the relevant camshaft cover. Refer to Camshaft Cover Replacement .

  16. Object Number: 894329  Size: SH
  17. Install the intake manifold. Refer to Intake Manifold Replacement .
  18. Install the air cleaner assembly.
  19. Notice: Refer to Fastener Notice in the Preface section.

  20. Connect the negative battery cable.
  21. Tighten
    Tighten the battery terminal bolts to 17 N·m (13 lb ft).