46. Valve Lifter and Guide Cleaning and Inspection
Valve Lifter and Guide Cleaning and Inspection
Valve Lifters
Note: Components that are to be used again must be marked, sorted or organized for assembly.
1. Clean the components in cleaning solvent.
Warning: Refer to Safety Glasses and Compressed Air Warning (Safety Glasses and Compressed Air Warning).
2. Dry the components with compressed air.
3. Inspect the valve lifters for the following conditions:
* Bent or broken clip (1)
* Worn pushrod socket (2)
* Scuffed or worn sides (3)
If the valve lifter shows wear, inspect the engine block lifter bores for wear or damage.
* Flat spots on the roller (4)
* Loose or damaged pin (5)
* Plugged oil hole (6)
* Worn or damaged roller bearing
The roller should rotate freely with no binding or roughness.
Valve Guides
Inspect the valve lifter guides for the following conditions:
* Cracks or damage
* Excessive wear in the lifter mounting bores