67. Valve Lifter Installation

Valve Lifter Installation

Important: If a new camshaft is installed, replace all the valve lifters.





1. Coat the valve lifter rollers with prelube, GM P/N 1052367 or equivalent.

Important: If reusing the valve lifters, install in their original location. The valve lifter guide retainer must contact all of the valve lifter guides. If the valve lifter guide retainer is bent, the valve lifter guide retainer must be replaced.

2. Install the valve lifters.
3. Install the valve lifter guides over the flats on the valve lifters, making sure the rollers of the valve lifters are properly aligned with the camshaft lobes.





4. Install the valve lifter guide retainer.

Notice: Refer to Fastener Notice in Service Precautions.

5. Install the valve lifter guide retainer bolts.
^ Tighten the valve lifter guide retainer bolts to 25 Nm (18 ft. lbs.).