Piston: Specifications

PISTON

Outer diameter
STD
A 99.505 - 99.515 mm (3.9175 - 3.9179 in.)
B 99.495 - 99.505 mm (3.9171 - 3.9175 in.)
0.25 mm (0.0098 in.) OS 99.745 - 99.765 mm (3.9270 - 3.9278 in.)
0.50 mm (0.0197 in.) OS 99.995 - 100.015 mm (3.9368 - 3.9376 in.)

Piston pin

Standard clearance
between piston pin and hole in piston
STD 0.004 - 0.008 mm (0.0002 - 0.0003 in.)
Limit 0.020 mm (0.0008 in.)
Degree of fit
Piston pin must be fitted into position with thumb at 20�C
(68�F).

Note:
STD = Standard
OS = Oversized