Piston Pin Fit

1. Check the outside diameter (OD) of the piston pin and record. If not 23.162-23.175 mm (0.9119-0.9124 inch) replace pin.





2. Check the inside diameter (ID) of the pin bore in the piston and record. If not 23.170-23.185 mm (0.9122-0.9128 inch) replace piston.





3. Check the inside diameter (ID) of the pin bore in the connecting rod and record. If not 23.105-23.145 mm (0.9096-0.9112 inch) replace connecting rod.
4. Replace any piston pin or connecting rod that is not within specification.
5. Subtract the piston's piston pin bore from the piston pin diameter. The difference is the clearance.
Clearance: 0.005-0.012 mm (0.0002-0.0005 inch).
6. Subtract the piston pin diameter from the connecting rod piston pin bore diameter. The pin should be the larger of the two measurements. The difference is the interferance fit. A pressure of 8,000 N (1800 lbs.) minimum should be needed to install the pin into the connecting rod. If the installing pressure is insufficient, fit a new piston pin.
7. Replace any component that is not within specification.