NOTE: To ensure accuracy, the following measurements must be completed with the components at room
temperature, 20ยฐC [68ยฐF]
Measure the piston skirt diameter 21.4 mm [0.84 in] (A) from the bottom of the piston.
Measure the piston ring clearance. Use a new piston ring to measure the clearance in the ring groove.
NOTE: The top piston ring clearance is not measured due to the type of piston ring used. The clearance can not be
measured accurately with a typical feeler gauge
Measure the piston pin bore.
Measure the piston pin diameter.
