Piston
PISTON DIAMETER
Measure the piston outside diameter with micrometer at the piston grading position and a right angle to the piston pin.
Piston grading position
(from piston head) 43.0 mm (1.6929 inch)
The size mark (1) for piston outside diameter is represented as shown in illustration.
Outside Diameter:
Size Mark A 93.360 mm 93.370 mm (3.6756 inch 3.6760 inch)
Size Mark B 93.371 mm 93.380 mm (3.6760 inch 3.6764 inch)
Size Mark C 93.381 mm 93.390 mm (3.6764 inch 3.6768 inch)