Piston Pin Installation

1. Thread the stop screw and lock nut assembly into the base. Fit the correct piston support on top of the base. Insert the press pin, threaded end up, into the hole in the piston support until its end touches the stop screw. See Figure 5.


2. Using the markings on the press pin, adjust the stop screw to the correct depth according to the application chart. Tighten the lock nut.





NOTE:
The piston pin depth set location is measured on the piston support as shown in Figure 6. If a curved support is being used, measure to the bottom center of the curve. For a flat support, measure to the lowest point of the flat surface.

3. Place the base onto press support blocks.

4. Slide the piston pin over the threaded end of the press pin, and thread the correct guide pin up against it.





5. Coat the piston pin with oil, and with the connecting rod held in position, slide the guide pin through the piston and connecting rod. See Figure 7.

6. Press the piston pin through the connecting rod until the guide pin contacts the stop screw.

7. Remove the piston assembly from the base. Remove the guide pin and press pin from the assembly.

CAUTION:
Due to production tolerance variations, it is necessary to visually inspect the piston pin depth after installation to verify that the piston pin is centered. Adjust if necessary.





APPLICATION CHART





PISTON PIN SERVICE SET