Intake Camshaft Installation

WARNING: This page is about a different car, the 2009 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Hydraulic Lash Adjusters

Courtesy of GENERAL MOTORS CORP.

Install the hydraulic lash adjusters into their bores in the cylinder head.
Lubricate the hydraulic lash adjusters with GM P/N 12345501 (Canadian P/N 992704) or equivalent.

Fig 2: Valve Tips

Courtesy of GENERAL MOTORS CORP.

Lubricate the valve tips.

Fig 3: Identifying Camshaft Roller Finger Followers

Courtesy of GENERAL MOTORS CORP.

NOTE: Used roller followers must be returned to the original position on the camshaft. If the camshaft is being replaced, the roller followers actuated by the camshaft must also be replaced.

Position the roller followers on the tip of the valve stem and on the lash adjuster. Lubricate roller followers with GM P/N 12345501 (Canadian P/N 992704) or equivalent.

Fig 4: Identifying Proper Exhaust/Intake Camshaft Alignment positions

Courtesy of GENERAL MOTORS CORP.

NOTE: The engine is timed top-dead center exhaust stroke.

When installing the camshafts, ensure the intake camshaft notch is in the 5 o'clock position (2) and the exhaust camshaft notch is in the 7 o'clock position (1). The number 1 piston should be at top dead center (TDC), crankshaft key at 12 o'clock.

Fig 5: Camshaft Caps

Courtesy of GENERAL MOTORS CORP.

Set the intake camshaft on top of the roller followers in the camshaft bearing journals. Lubricate with GM P/N 12345501 (Canadian P/N 992704) or equivalent.
Install the camshaft caps and hand start the camshaft cap bolts.
Tighten the camshaft cap bolts in increments of 3 turns until they are seated. Tighten the camshaft caps to 10 N.m (89 lb in).