Installation Procedure

WARNING: This page is about a different variant/trim than selected.

Fig 1: Camshaft Lobes

Courtesy of GENERAL MOTORS CORP.

Install the exhaust camshaft onto the cylinder head with the number 1 cam lobes facing as shown.

IMPORTANT: Each bearing cap has a number and a directional arrow marked on the bearing cap.

Fig 2: Exhaust Camshaft Bearing Cap Bolt Installation Sequence

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice in Cautions and Notices.

Install the camshaft bearing cap bolts.
Tighten: Tighten the bolts in the sequence shown to 19 N.m (14 lb ft).
Install the front camshaft bearing cap.
Tighten: Tighten the bearing cap bolts to 19 N.m (14 lb ft).

Fig 3: View Of Sprocket Locating Pins

Courtesy of GENERAL MOTORS CORP.

Fig 4: Using Wrench To Hold/Rotate Camshaft

Courtesy of GENERAL MOTORS CORP.

Install the camshaft sprocket bolt in order to secure the cam sprocket.
Tighten: Tighten the bolt to 54 N.m (40 lb ft).
Install the timing chain onto the engine. Refer to Timing Chain and Sprockets Replacement .
Unlock the intake camshaft actuator locking pin. Refer to Camshaft Actuator Locking Pin Adjustment .
Inspect and adjust valve clearance. Refer to Valve Lash Adjustment .