Bonneville V8-4.6L VIN Y (2004)
1. Clean any debris from the crankshaft rear oil seal drain (1) using wire or an unbound plastic tie-wrap (2).
2. Place a small amount of Gasket Maker, GM P/N 1052942 (Canadian P/N 10953466) or equivalent, at the crankcase split line across the end of the
upper/lower crankcase seal.
3. Coat the outer diameter of the cylinder block crankshaft rear oil seal area with clean engine oil GM P/N 12345501 (Canadian P/N 992704) or
equivalent.
Important: DO NOT allow any engine oil on the area where the crankshaft rear oil seal is to be pressed onto the crankshaft. The green coating
pre-applied to the inner diameter of the crankshaft rear oil seal must not be contaminated.
4. Wipe the outer diameter of the flywheel flange clean with a lint-free cloth.
Important: DO NOT put any engine oil on the green coating pre-applied to the inner diameter of the crankshaft rear oil seal. This coating is a sealant
that must not be contaminated.
5. Lubricate the outer rubber surface (1) of the crankshaft rear oil seal with clean engine oil GM P/N 12345501 (Canadian P/N 992704) or
equivalent.
