Valve Lifter and Guide Cleaning and Inspection

Valve Lifter and Guide Cleaning and Inspection

Non Active Fuel Management 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.

Active Fuel Management 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:

* Broken or collapsed spring (1)

* Worn pushrod socket (2)

* Plugged lubrication hole (3)

* Plugged lifter oil-switching hole (4)

* Flat spots on the roller (5)

* Worn or damaged roller bearing (6)

The roller should rotate freely with no binding or roughness.

* Scuffed or worn sides (7)

Valve Guides





Inspect the valve lifter guides for the following conditions:

* Cracks or damage (1)

* Excessive wear in the lifter mounting bores (2)