Piston, Engine
PISTON AND PISTON PINPiston grade point H 38.2 mm (1.50 inch)
Standard diameter
A 99.505 - 99.515 mm (3.9175 - 3.9179 inch)
B 99.495 - 99.505 mm (3.9171 - 3.9175 inch)
0.25 mm (0.0098 inch) oversize 99.745 - 99.765 mm (3.9270 - 3.9278 inch)
0.50 mm (0.0197 inch) oversize 99.995 - 100.015 mm (3.9368 - 3.9376 inch)
Cylinder to piston clearance, standard -0.010 - 0.010 mm (-0.00039 - 0.00039 inch)
Clearance between pin & pin hole, standard 0.004 - 0.008 mm (0.0002 - 0.0003 inch)
PISTON RING
Piston ring gap, standard
Top ring 0.20 - 0.25 mm (0.0079 - 0.0098 inch)
Second ring 0.37 - 0.52 mm (0.015 - 0.020 inch)
Oil ring rail 0.20 - 0.50 mm (0.0079 - 0.0197 inch)
Clearance between ring & ring groove
Top ring 0.040 - 0.080 mm (0.0016 - 0.0031 inch)
Second ring 0.030 - 0.070 mm ((0.0012 - 0.0028 inch)
Piston grade point H:
