49. Valve Lifter Cleaning and Inspection
Valve Lifters Cleaning and Inspection
1. Clean the valve lifters in cleaning solvent.
2. Caution: Refer to Safety Glasses Caution in Service Precautions.
Dry the valve lifters with compressed air.
3. Inspect the valve lifters for the following:
^ Bent or broken clip (1)
^ Worn push rod 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.
4. Inspect the valve lifter guides for the following:
^ For cracks or damage
^ Excessive wear in the lifter mounting bores