Tools Required
J 35268-A Camshaft/Front
Main Seal Installer
- Choose the correct camshaft to be installed.
Camshaft Identification
- | 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. |
- | 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. |
- Lubricate the camshaft bearing surfaces with GM P/N 1052367
(Canadian P/N 992869) or equivalent.
- 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.
- Install the camshafts.
- 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.
- Install the camshaft bearing
caps in their appropriate position.
Notice: Refer to Fastener Notice in the Preface section.
- 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).
- Coat the lip of the camshaft seals with a small amount of clean
engine oil to aid in installation.
- Use the J 35268-A
to tap the camshaft seals into place. Ensure the camshaft seals are
fully seated.