Piston, Pin, and Connecting Rod Replacement: Disassembly

Assemble the special tool as shown.

Fig 1: Assembling Special Tool
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Temporarily install the pilot collar over the piston pin base insert (A), and adjust the piston base head inserts as shown, then tighten the screws (B). Remove the pilot collar.

Fig 2: Installing Pilot Collar Over Piston Pin Base Insert
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Assemble and adjust the length of the piston pin driver head and shaft to 57 mm (2.2 in.).

Fig 3: Identifying Length Of Piston Pin Driver Head And Shaft
Courtesy of AMERICAN HONDA MOTOR CO., INC.
With the arrow on top of the piston pointing up, place the piston assembly (A) on the special tool (B). Be sure you position the recessed flat area of the piston against the piston base head inserts (C) as shown.

Fig 4: Placing Piston Assembly On Special Tool
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Press the pin (D) out with the pin driver (E), the pilot collar (F), and a hydraulic press.