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Piston Pins

  1. Measure the diameter of the piston pin.

    Piston pin diameter 

    21.097 ~ 22.000 mm (0.8305 ~ 0.8661 in.)

    Fig 1: Measuring Diameter Of Piston Pin
    G07388739Courtesy of KIA MOTORS AMERICA, INC.
  2. Measure the piston pin-to-piston clearance.

    Piston pin-to-piston clearance 

    0.004 ~ 0.013 mm (0.00015 ~ 0.00051 in.)

  3. Check the difference between the piston pin diameter and the connecting rod small end diameter.

    Piston pin-to-connecting rod interference 

    0.005 ~ 0.019 mm (0.00019 ~ 0.00074 in.)