>> A << Piston Pin Installation

WARNING: This page is about a different variant/trim than selected.

When replacing the piston, read off the cylinder bore size mark on the cylinder block as illustrated, and select a piston according to the flowing table.

PISTON SIZE MARK CHART

CYLINDER BORE SIZE MARK	PISTON SIZE MARK
I	A
II	None
III	C

NOTE: The piston size mark shows on the top of the piston.

Fig 1: Identifying Crankshaft Bore Size Mark

Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.

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 the press pin touches the stop screw.
Using the markings on the press pin, adjust the stop screw to the depth shown on the instruction for special tool MIT216941.

Fig 2: Installing Piston Pin
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Place the base on press support blocks.
Slide the piston pin over the threaded end of the press pin, and thread the correct guide pin up against it.
Coat the piston pin with engine oil. With the connecting rod held in position, slide the guide pin through the piston and connecting rod.
Press the piston pin through the connecting rod until the guide pin contacts the stop screw.
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.
Remove the piston assembly from the base. Remove the guide pin and press pin from the assembly.

Fig 3: Pressing Pin
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.
Check that the piston moves smoothly.

Fig 4: Checking Piston Movement
Courtesy of MITSUBISHI MOTOR SALES OF AMERICA.