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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 8 (Engine Mechanical - 4.3L) >> 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 variant/trim than selected.
    Fig 1: Valve Lifters & Guides
    GM188118Courtesy of GENERAL MOTORS CORP.
  1. Mark, sort, and organize the components for assembly.
    2. CAUTION: Refer to SAFETY GLASSES CAUTION in Cautions and Notices.
  2. Clean the components in cleaning solvent.
  3. Dry the components with compressed air.
    4. Fig 2: Valve Lifter Pushrod Guides
    GM334500Courtesy 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.
    6. Fig 3: Inspecting Areas Of Valve Lifters
    GM178485Courtesy 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)
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