Camshaft Installation - Exhaust

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

Fig 1: Camshaft Lobes

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: When performing any service procedure that pertains to the camshaft or the camshaft actuator, unlock the camshaft actuator locking pin. Refer to Camshaft Actuator Locking Pin Adjustment .

Install the intake 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.

Install the camshaft bearing caps in their proper locations with the arrows facing forward.

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 camshaft timing gear and camshaft bearing cap and secure with bolts.
Tighten: Tighten the bolts to 19 N.m (14 lb ft).

Fig 3: View Of Sprocket Locating Pins

Courtesy of GENERAL MOTORS CORP.

Install the exhaust camshaft sprocket to the camshaft.
Install the exhaust camshaft sprocket bolt to the camshaft.
Tighten: Tighten the bolt to 55 N.m (40 lb ft).
Unlock the intake camshaft actuator locking pin. Refer to Camshaft Actuator Locking Pin Adjustment .