Valve Lifters and Guides Cleaning and Inspection

WARNING: This page is about a different car, the 2007 Hummer H2. However, it is still accessible from the selected car via links, so may be relevant.

IMPORTANT: Components that are to be used again must be marked, sorted, or organized for assembly.

Mark, sort, or organize the components for assembly. Refer to Separating Parts .
Clean the components in cleaning solvent.

CAUTION: Refer to Safety Glasses Caution .

Dry the components with compressed air.

Fig 1: Inspecting Areas Of Valve Lifters

Courtesy of GENERAL MOTORS CORP.

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.

Fig 2: View Of Valve Lifters & Lifter Guides

Courtesy of GENERAL MOTORS CORP.

Inspect the valve lifter guides for the following conditions:
- For cracks or damage
- Excessive wear in the lifter mounting bores