GM Service Manual Online
For 1990-2009 cars only

Tools Required

J 35268-A Camshaft/Front Main Seal Installer


    Object Number: 769033  Size: SH
  1. Choose the correct camshaft to be installed.
  2. Camshaft Identification

    • 2.6L (LY9)
       - The intake camshaft is stamped with the letter "F" next to bearing 1.
       - The exhaust camshaft is stamped with the letter "N" next to bearing 1.
    • 3.2L (LA3)
       - The intake camshaft is stamped with the letter "G" next to bearing 1.
       - The exhaust camshaft is stamped with the letter "J" next to bearing 1.
  3. Lubricate the camshaft bearing surfaces with GM P/N 1052367 (Canadian P/N 992869) or equivalent.
  4. Apply engine assembly lubricant GM P/N 1052367 (Canadian P/N 992869) to the camshaft lobes.
  5. Important: Ensure the pin on the exhaust camshaft is approximately in the 11 o'clock position and/or that the pin on the intake camshaft is approximately in the 12 o'clock position to allow for minimal load on the camshaft when installing the bearing caps.

  6. Install the camshafts.

  7. Object Number: 797559  Size: SH
  8. Apply a small amount of GM P/N 1052942 (Canadian P/N 10953466) or equivalent on the forward edge of the front bearing caps to ensure an adequate seal between the bearing cap and cylinder head.

  9. Object Number: 159111  Size: SH
  10. Install the camshaft bearing caps in their appropriate position.
  11. Notice: Refer to Fastener Notice in the Preface section.


    Object Number: 797560  Size: SH
  12. Install the camshaft bearing cap bolts and tighten, using tightening sequence.
  13. Tighten
    Tighten the camshaft bearing cap bolts to 8 N·m (71 lb in).

  14. Coat the lip of the camshaft seals with a small amount of clean engine oil to aid in installation.
  15. Use the J 35268-A to tap the camshaft seals into place. Ensure the camshaft seals are fully seated.