C 1500 Truck 2WD V8-393 6.5L DSL VIN P (1995)
Lifter / Lash Adjuster: Service and Repair
Roller hydraulic lifters are used to reduce friction between valve lifter and camshaft lobe. Guides keep the lifters from rotating on the camshaft lobes,
Fig. 4.
1. Remove rocker arm covers and rocker arms. Mark assemblies so they may be returned to original position during assembly procedure.
2. Remove guide clamps and guide plates.
3. Remove valve lifters through access hole in cylinder head using hydraulic lifter remover tool No. J-29834, or equivalent, and a magnet.
4. Reverse procedure to install, noting the following:
a. Some engines will have both standard and/or 0.010 inch oversize hydraulic lifters. The oversize lifter(s) will have a 10 etched on the side of
the lifter. The block will be stamped O.S. on the cast pad adjacent to the lifter bore and on the top rail of the cylinder case above the lifter bore.
b. New hydraulic lifters must be primed before installation.
c. After guide plate clamp bolts are installed, turn the crankshaft manually 720 degrees (two complete revolutions) to ensure free movement of
the lifters in the guide plates. If the engine will not turn by hand, one or more of the lifters may be binding in the guide plate.
