Piston, Pin, and Connecting Rod Replacement: Inspection

Measure the diameter of the piston pin.
Piston Pin Diameter
1. Standard (New): 18.996-19.000 mm (0.7479-0.7480 in.)
Fig 1: Measuring Diameter Of Piston Pin
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Zero the dial indicator to the piston pin diameter.

Fig 2: Zeroing Dial Indicator To Piston Pin Diameter
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the piston pin-to-piston clearance.
Piston Pin-to-Piston Clearance
1. Standard (New): 0.010-0.020 mm (0.0004-0.0008 in.)
Fig 3: Measuring Piston-To-Piston Clearance
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Check the difference between the piston pin diameter and connecting rod small end diameter.
Piston Pin-to-Connecting Rod Interference
1. Standard (New): 0.016-0.036 mm (0.0006-0.0014 in.)
Fig 4: Checking Difference Between Piston Pin Diameter & Connecting Rod Small End Diameter
Courtesy of AMERICAN HONDA MOTOR CO., INC.