Piston, Pin, and Connecting Rod Replacement: Inspection

NOTE: Inspect the piston, the piston pin, and the connecting rod when they are at room temperature

Measure the diameter of the piston pin
Piston Pin Diameter

Standard (New): 21.962-21.965 mm (0.8646-0.8648 in)

Service Limit: 21.954 mm (0.8643 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: Identifying Zero Dial Indicator To Piston Pin Diameter
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Check the difference between the piston pin diameter and the piston pin hole diameter on the piston
J35Z6 engine

Piston Pin-to-Piston Clearance

Standard (New): -0.005 to +0.001 mm (-0.00020 to +0.00004 in.)

Service Limit: 0.004 mm (0.00016 in)

J37A4 engine

Piston Pin-to-Piston Clearance

Standard (New): -0.005 to +0.003 mm (-0.00020 to +0.00012 in)

Service Limit: 0.004 mm (0.00016 in.)

Fig 3: Identifying Piston Pin-To-Piston Clearance
Courtesy of AMERICAN HONDA MOTOR CO., INC.
Measure the piston pin-to-connecting rod clearance
Piston Pin-to-Connecting Rod Clearance

Standard (New): 0.005-0.014 mm (0.00020-0.00055 in)

Service Limit: 0.019 mm (0.00075 in)

Fig 4: Measuring Piston Pin-To-Connecting Rod Clearance
Courtesy of AMERICAN HONDA MOTOR CO., INC.