Piston, Pin, and Connecting Rod Replacement: Disassembly

Remove the piston from the cylinder block (see Oil Pan Removal ).
Assemble the special tool as shown.

Fig 1: Assembling Special Tool
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Assemble and adjust the length of the piston pin driver head and shaft to 53 mm (2.1 in.).

Fig 2: Assembling & Adjusting Length Of Piston Pin Drive Head & Shaft
Courtesy of AMERICAN HONDA MOTOR CO., INC.
With the embossed mark facing up, place the piston assembly (A) on the special tool (B). Be sure you position the recessed flat on the piston against the lugs on the base attachment.

Fig 3: Placing Piston Assembly With Embossed Mark Facing Up
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Press the pin (C) out with the pin driver (D), pilot collar (E) and a hydraulic press.