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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 1619 (Engine Mechanical - 4.8L, 5.3L & 6.0L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Valve Lifters and Guides Cleaning and Inspection

Valve Lifters and Guides Cleaning and Inspection

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IMPORTANT: Components that are to be used again must be marked, sorted or organized for assembly.
  1. Mark, sort, or organize the components for assembly. Refer to Separating Parts .
  2. Clean the components in cleaning solvent.
    CAUTION: Refer to SAFETY GLASSES CAUTION .
  3. Dry the components with compressed air.
  4. 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.

    • 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 1: Inspection Points For Valve Lifters
    G02107073Courtesy of GENERAL MOTORS CORP.
  5. Inspect the valve lifter guides for the following:
    • For cracks or damage
    • Excessive wear in the lifter mounting bores
    Fig 2: Inspect Valve Lifter Guides
    G02107074Courtesy of GENERAL MOTORS CORP.
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