Installation Procedure

Lubricate camshaft and camshaft bearing caps with engine oil.

Fig 1: Intake Camshaft, Camshaft Bearing Caps And Bolts
Courtesy of GENERAL MOTORS COMPANY

NOTE: Mind the markings on the camshaft bearing caps. Camshaft bearing caps should be installed in their original position.
Install the intake camshaft (3).
Install the 5 camshaft bearing caps (2).
Install the 10 camshaft bearing cap bolts (1) and hand tighten.
Tighten the camshaft bearing cap bolts one turn at a time in a spiral sequence as shown to 8 N.m (71 lb in).

Fig 2: Intake Camshaft Bearing Cap Bolts Tightening Sequence
Courtesy of GENERAL MOTORS COMPANY

CAUTION: Refer to Fastener Caution .

NOTE: Tighten the camshaft bearing cap bolts one turn a time to avoid shape distortion of the camshaft.
Install camshaft intake sprocket. Refer to Camshaft Intake Sprocket Replacement .