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Cylinder Head - Distortion

Fig 1: Identifying Straight Edge
G01941834Courtesy of FORD MOTOR CO.
  1. Use a straight edge and a feeler gauge to inspect the cylinder head for flatness. If the cylinder head is distorted, install a new cylinder head. For specifications, see SPECIFICATIONS .
    Fig 2: Checking Cylinder Head Distortion
    G01941835Courtesy of FORD MOTOR CO.