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Home >> Chevrolet >> 2007 >> Optra5 LS, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Mechanical - 2.0L (L34 GMDAT) >> Repair Instructions >> Valve Guide Reaming/Valve and Seat Grinding >> Valve Grind - In

Valve Grind - In

    Fig 1: View Of Valve Grinding Tool
    GM1241253Courtesy of GENERAL MOTORS CORP.
    CAUTION: Refer to Safety Glasses Caution .
  1. Lubricate the valve seat using a fine-grained paste.
  2. Lift the valve rhythmically from the seat with a commercially-available valve grinding tool in order to distribute the paste.
    3. Fig 2: Checking The Cylinder Head/Valve Head Contact Pattern
    GM1241773Courtesy of GENERAL MOTORS CORP.
  3. Inspect the contact pattern on the valve head and in the cylinder head.
  4. Clean the valves, the valve guides, and the cylinder head.
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