Intake Camshaft Installation

WARNING: This page is about a different car, the 2010 Pontiac G5 and 2010 Chevrolet Cobalt. However, it is still accessible from the selected car via links, so may be relevant.

Fig 1: Hydraulic Lash Adjusters

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Install the hydraulic lash adjusters into their bores in the cylinder head.
Lubricate the hydraulic lash adjusters. Refer to Adhesives, Fluids, Lubricants, and Sealers .

Fig 2: Valve Tips

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Lubricate the valve tips. Refer to Adhesives, Fluids, Lubricants, and Sealers .

Fig 3: Identifying Camshaft Roller Finger Followers

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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. Refer to Adhesives, Fluids, Lubricants, and Sealers .

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 and lubricate. Refer to Adhesives, Fluids, Lubricants, and Sealers .
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).