Exhaust Camshaft, Follower, and Adjuster Install

WARNING: This page is about a different car, the 2007 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: View Of Hydraulic Element Lash Adjusters

Courtesy of GENERAL MOTORS CORP.

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

Fig 2: Lubricating Valve Tips

Courtesy of GENERAL MOTORS CORP.

Lubricate the valve tips with GM P/N 12345501 (Canadian P/N 992704) or equivalent.

Fig 3: Identifying Exhaust Camshaft Roller Followers

Courtesy of GENERAL MOTORS CORP.

IMPORTANT: 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, apply lubricant GM P/N 12345501 (Canadian P/N 992704) or equivalent.

Fig 4: View Of Camshaft & Bearing Caps

Courtesy of GENERAL MOTORS CORP.

Set the exhaust camshaft on top of the roller followers in the camshaft journals. Lubricate with GM P/N 12345501 (Canadian P/N 992704) or equivalent.
Install the camshaft caps and hand start the camshaft cap bolts.

Fig 5: View Of Timing Chain Sprocket Alignment Notch

Courtesy of GENERAL MOTORS CORP.

NOTE: Refer to Fastener Notice .

The timing chain sprocket alignment notch should be oriented to the 2 o' clock position.
Tighten the camshaft bearing cap bolts in increments of 3 turns until they are seated, lubricate.
Tighten: Tighten the camshaft caps to 10 N.m (89 lb in).