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Piston - Pin Diameter

  1. Measure the piston pin diameter in two directions at the points shown in Fig 1. Verify the diameter is within specification.
    • Refer to GENERAL SPECIFICATIONS for 3.8L engines or GENERAL SPECIFICATIONS for 4.6L engines.
    • If out of specification, install new components as necessary. Refer to PISTON for 3.8L engines or PISTON for 4.6L engines.
      Fig 1: Measuring Piston Pin Diameter
      G03400634Courtesy of FORD MOTOR CO.