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Home >> Chevrolet >> 2007 >> Optra5 LS, Standard >> Repair and Diagnosis (Single Page) >> Engine Mechanical >> Mechanical >> Engine Mechanical - 1.4L DOHC >> Repair Instructions >> Valve Guide Reaming/Valve and Seat Grinding >> Valve Grind

Valve Grind

    Fig 1: View Of Valve And Refacing Tool
    GM1241775Courtesy of GENERAL MOTORS CORP.
  1. Ensure there are no crater line burns on the valve cone.
  2. The valve may be reground only 2 times. Do not grind the valve stem end.
  3. The angle at the valve face is 45 degrees.
  4. Inspect the assembly height of the intake valves and the exhaust valves.
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