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Home >> Chevrolet >> 2007 >> Optra5 LS, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Mechanical - 1.8L (L79) >> Repair Instructions >> Valve Rocker Arm and Shaft Cleaning and Inspection >> Cleaning Procedure

Cleaning Procedure

    CAUTION: Refer to Safety Glasses Caution .
    Fig 1: Cleaning Cylinder Head
    GM1289879Courtesy of GENERAL MOTORS CORP.
  1. Clean the cylinder head.
  2. Clean the valve guides.
  3. Clean all of the threaded holes.
  4. Clean the valves of carbon, oil, and varnish.