Important: Whenever a new camshaft is installed, do the following procedures:
•
Change the engine oil.
•
Change the engine oil filter.
•
Add GM Engine Oil Supplement GM P/N 1052367 or the
equivalent to the engine oil.
Install the camshaft into the engine block. Refer to
Camshaft Installation
in Engine Unit Repair.
Install the balance shaft drive gear. Refer to
Balance Shaft Installation
in Engine Unit Repair for alignment
of the balance shaft drive gear and the driven gear.