Piston Pin: Service and Repair

PISTON PIN REMOVAL & INSTALLATION PROCEDURES





1. Use the special tools (09234-33001) or equivalent to disassemble and reassemble the piston and connecting rod.
2. Place the proper insert in the fork of the tool. Insert the position between the connecting rod and the piston.





3. Insert the proper removal tool through the hole in the arch of the tool.

NOTE: Center the piston, rod and pin assembly with the removal arbor.

4. Press the piston pin out of the connecting rod.





5. Install proper pin guide through piston and into connecting rod. Hand and tap pin guide into piston for proper retention. Drop piston pin into the other side of the piston.

NOTE: The pin guide centers the connecting rod in the piston. When the piston, connecting rod, piston pin and pin guide assembly are positioned on the fork of the tool, the pin guide will also center this assembly in the tool. If too small a pin guide used, the piston assembly will not be located centrally in the tool, and damage may occur to the fork and/or insert of the tool.





6. Install piston assembly onto fork assembly of tool. Tool will support connecting rod at the piston pin. Be sure piston assembly is slid onto the fork until the pin guide contacts the fork insert. Adjust the installing arbor to the proper length by turning the numbered sleeve on the lettered shaft until the specified alpha-numeric setting from the application chart is obtained. Turn knurled nut to lock numbered sleeve on shaft.
7. Insert the installing arbor through the hole in the arch of the tool. Press piston pin into the connecting rod until the sleeve on the installing arbor contacts the top of the tool arch. The pin guide will fall out of the connecting rod as the piston pin is pressed in.

CAUTION: Do not exceed 5000 pounds of force when stopping the installing arbor sleeve against the arch.





NOTE:
Convex depth: 1.8L: 2.05-2.25 mm (0.080-0.088 inch)