Bonneville V8-4.6L VIN Y (2004)
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 the Stationary Hydraulic Lash Adjusters (SHLA) (1). The rounded head of the
follower goes on the SHLA, while the flat end goes on the valve tip.
3. Clean the camshaft carriers with a clean, lint-free cloth.
4. Apply a liberal amount of lubricant GM P/N 12345001, or equivalent, to the camshaft carriers camshaft lobes (1), and the camshaft journals (2).
5. Place the camshaft in the camshaft carriers with the camshaft sprocket drive pins near the top of their rotation and the camshaft lobes in a neutral
position. The camshafts can be identified by a stamping near the rear journal. For example, L-EXH is defined as left bank exhaust.
6. Observe the markings on the camshaft bearing caps. Each camshaft bearing cap is marked in order to identify its location. The markings have the
following meanings:
^
The arrow should point to the front of the engine.
^
The number indicates the position from the front of the engine.
^
The "E" indicates the exhaust camshaft.
