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Home >> Ford >> 2006 >> Freestar Base >> Repair and Diagnosis >> Engine Mechanical >> Mechanical >> Engine System-General Information >> General Procedures >> Cylinder Bore Taper

Cylinder Bore Taper

  1. Measure the cylinder bore at the top, middle and bottom of piston ring travel in 2 directions as indicated. Verify the cylinder bore is within the wear limit. The difference indicates the cylinder bore taper. Bore the cylinder to the next oversize limit.
    • Refer to SPECIFICATIONS .
      Fig 1: Identifying Cylinder Bore Measuring Directions
      G03905260Courtesy of FORD MOTOR CO.