Valve Lifters Cleaning and Inspection. Buick GL7 (Export) 2000

For 1990-2009 cars

Caution: Bodily injury may occur if the cleaning solvent is inhaled or exposed to the skin.

1. Clean the valve lifters in cleaning solvent.

Caution: Wear safety glasses in order to avoid eye damage.

2. 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