Piston Pin End

Fig 1: Measuring Piston Pin In Area Of Connecting Rod Contact

Courtesy of SUZUKI OF AMERICA CORP.

NOTE: Measurements of all components should be taken with the components at normal room temperature.

Using an outside micrometer, take 2 measurements of the piston pin in the area of the connecting rod contact.

Fig 2: Measuring Connecting Rod Piston Pin Bore
Courtesy of SUZUKI OF AMERICA CORP.
Using an inside micrometer, measure the connecting rod piston pin bore.
Subtract the piston pin diameter from the piston pin bore.
Compare the clearance measurements with the ENGINE MECHANICAL SPECIFICATIONS .
If the clearance is excessive, replace the piston pin. If a new pin does not resolve the clearance problem, replace the connecting rod.