Tools Required

J 35268-A  Camshaft/Front Main Seal Installer. See Special Tools and Equipment .

Fig 1: Identifying Camshaft
Courtesy of GENERAL MOTORS CORP.
1. Choose the correct camshaft to be installed.

   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.
2. 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 1052942 (Canadian P/N 992869) to the camshaft lobes.
IMPORTANT: Ensure the pin on the exhaust camshaft is approximately in the 1 o'clock position and/or that the pin on the intake camshaft is approximately in the 8 o'clock position to allow for minimal load on the camshaft when installing the bearing caps.
5. Install the camshafts.
Fig 2: Applying Sealant Between Bearing Cap & Cylinder Head
Courtesy of GENERAL MOTORS CORP.
6. 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.
Fig 3: Identifying Code Marks On Camshaft Bearing Caps
Courtesy of GENERAL MOTORS CORP.
7. Install the camshaft bearing caps in their appropriate position.
Fig 4: Identifying Camshaft Bearing Cap Bolt Tightening Sequence
Courtesy of GENERAL MOTORS CORP.
NOTE: Refer to Fastener Notice in Cautions and Notices.
8. Install the camshaft bearing cap bolts and tighten using tightening sequence.

   Tighten:  Tighten the camshaft bearing cap bolts to 8 N.m (71 lb in).

9. Coat the lip of the camshaft seals with a small amount of clean engine oil to aid in installation.
10. Use the J 35268-A  to tap the camshaft seals into place. See Special Tools and Equipment . Ensure the camshaft seals are fully seated.