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Home >> GMC >> 2006 >> Sierra 1500 HD, RWD >> Repair and Diagnosis >> External Pages >> Different variant/trim >> Section 10 (Engine Mechanical - 8.1L) >> Repair Instructions >> Off-Vehicle Repair Instructions >> Cylinder Head Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

WARNING: This page is about a different variant/trim than selected.
    Fig 1: View Of Valve & Components
    GM1310007Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.
    IMPORTANT: Mark, sort, or organize components for return to their original locations.
  1. Clean the valve stems and heads on a buffing wheel.
  2. Clean the following components in solvent:
    • Valve stem keys (220)
    • Valve spring cap (219)
    • Valve spring (218)
    • Valve Rotators (216)
    • Valve (232)
    • Cylinder head
    3. CAUTION: Refer to Safety Glasses Caution in Cautions and Notices.
  3. Dry the components with compressed air.
    4. Fig 2: Cleaning Carbon From Combustion Chambers Using J 8089
    GM35201Courtesy of GENERAL MOTORS CORP.
    IMPORTANT: Be careful not to damage the chamber or the valve seat.
  4. Use the J 8089  in order to clean the carbon from the combustion chambers.
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