45. Valve Lifter and Guide Cleaning and Inspection

Valve Lifters and Guides Cleaning and Inspection




1. Keep the valve lifters in order so they can be installed in their original position.

Important: When new valve lifters are installed, coat the valve lifters with camshaft and lifter prelube GM P/N United States 12345501, GM P/N Canada 992704 or the equivalent.

2. Inspect the following areas of the valve lifters:
* The retaining clip (1)
* The push rod socket for wear (2)
* The valve lifter body for wear and scuffing (3)
* The valve lifter bore for wear
* The valve lifter roller assembly for wear (4)
* The valve lifter roller pin for damage (5)
* The oil hole for plugging (6)
3. Inspect the valve lifter guides for cracks or damage.