Valve Rocker Arm Installation - Left Side LLT

1. Apply a liberal amount of lubricant GM P/N 12345501 (Canadian P/N 992704) or equivalent to the pivot pocket (1), roller (2) and valve slot (3) areas of the camshaft followers.




Important: The follower must be positioned squarely on the valve tip so that the full width of the roller will completely contact the camshaft lobe. If the followers are being reused you must put them back in their original location.

2. Place the camshaft followers in position on the valve tip and stationary hydraulic lash adjuster (SHLA).
3. The rounded head end of the follower goes on the SHLA while the flat end goes on the valve tip.
4. Clean the camshaft journals and carriers with a clean, lint-free cloth.

Valve Rocker Arm Installation - Left Side LY7

1. Apply a liberal amount of commercially available camshaft/lifter prelube to the pivot pocket (1), roller (2) and valve slot (3) areas of the valve rocker arms.




Important: The valve rocker arms (1) must be positioned squarely on the valve tip so that the full width of the roller will completely contact the camshaft lobe. If the valve rocker arms (1) are being reused you must put them back in their original location.

2. Place the valve rocker arms (1) in position on the valve tip and Stationary Hydraulic Lash Adjuster (SHLA).
3. The rounded head end of the valve rocker arms (1) go on the SHLA while the flat end goes on the valve tip.
4. Clean the camshaft journals and carriers with a clean, lint-free cloth.