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Home >> Chevrolet >> 2002 >> Blazer 4D Utility, 4WD, Part Time >> Repair and Diagnosis >> External Pages >> Different car >> Section 906 (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

WARNING: This page is about a different car, the 2003 GMC Sonoma, 2003 GMC Jimmy, 2003 Chevrolet S10 Pickup, and 2003 Chevrolet Blazer. However, it is still accessible from the selected car via links, so may be relevant.
  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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