Exhaust Camshaft, Follower, and Adjuster Install

WARNING: This page is about a different car, the 2003 Pontiac Sunfire and 2003 Chevrolet Cavalier. However, it is still accessible from the selected car via links, so may be relevant.

Install the hydraulic element lash adjusters into their bores in the cylinder head. Apply lubricant GM P/N United States 12345501, GM P/N Canada 992704 to hydraulic element lash adjuster.

Fig 1: Installing Hydraulic Element Lash Adjusters
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Lubricate the valve tips with GM P/N United States 12345501, GM P/N Canada 992704.

Fig 2: Lubricating Valve Tips
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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 United States 12345501, GM P/N Canada 992704.

Fig 3: Installing Roller Followers
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Set the exhaust camshaft on top of the roller followers in the camshaft bearing journals lubricate with GM P/N United States 12345501, GM P/N Canada 992704.
Install the camshaft bearing caps and hand start the camshaft cap bolts.

Fig 4: Installing Exhaust Camshaft
Courtesy of GENERAL MOTORS CORP.
The timing chain sprocket alignment notch should be oriented to the two o'clock position.
Tighten the camshaft bearing cap bolts in increments of three turns until they are seated, lubricate.
Tighten

Tighten the camshaft bearing caps to 10 N.m (89 lb in).

Fig 5: Identifying Timing Chain Sprocket Alignment Notch
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