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Home >> GMC >> 2003 >> Safari Van Cargo, AWD >> Repair and Diagnosis >> External Pages >> Different car >> Section 885 (Engine Mechanical - 4.3L (LU3)) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Valve Lifters and Guides Cleaning and Inspection

Valve Lifters and Guides Cleaning and Inspection

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  1. Mark, sort, and organize the components for assembly.
    CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
  2. Clean the components in cleaning solvent.
  3. Dry the components with compressed air.
    Fig 1: Cleaning and Inspecting Valve Lifters & Guides
    G01977876Courtesy of GENERAL MOTORS CORP.
  4. Inspect the valve lifter pushrod guides for excessive wear.
  5. Inspect the valve lifter pushrod guides for cracks or damage.
    Fig 2: Inspecting Valve Lifter Pushrod Guides
    G01977877Courtesy of GENERAL MOTORS CORP.
  6. Inspect the valve lifter for the following:
    • Broken or damaged clip (1)
    • Worn pushrod socket (2)
    • Scuffed or worn lifter body (3)

      If the valve lifter shows scuffing or wear, inspect the engine block valve lifter bores for wear.

    • Worn roller (4)
    • Loose or damaged pin (5)
    • Plugged oil hole (6)
      Fig 3: Inspecting Valve Lifter
      G01977878Courtesy of GENERAL MOTORS CORP.
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