Valve Lifters and Guides Cleaning and Inspection

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IMPORTANT: Components that are to be reused 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 in Cautions and Notices.
Dry the components with compressed air.
Inspect the valve lifters for the following:
- 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.
  
  Fig 1: Valve Lifters Inspection Areas
  Courtesy of GENERAL MOTORS CORP.
- 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.
Inspect the valve lifter guides for the following:
- For cracks or damage
- Excessive wear in the lifter mounting bores
Fig 2: Valve Lifter Guide Inspection Areas
Courtesy of GENERAL MOTORS CORP.