Tools Required

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

Fig 1: Identifying Camshafts
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.
   • 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.
2. Lubricate the camshaft bearing surfaces with GM P/N 1052367 (Canadian P/N 992869) or equivalent.
3. Apply engine assembly lubricant GM P/N 1052367 (Canadian P/N 992869) to the camshaft lobes.
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.
4. Install the camshafts.
Fig 2: Applying Sealant Between Bearing Cap & Cylinder Head
Courtesy of GENERAL MOTORS CORP.
5. 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.
6. 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.
7. 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).

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