Piston, Engine

Cylinder and Piston
The cylinder bore size is stamped on the front upper face of the cylinder block
Standard sized pistons are classified into two grades, "A" and "B". These grades should be used as guide lines in selecting a standard piston.











Cylinder to piston clearance at 20 degrees C (68 degrees F) -0.010 - 0.010 mm (-0.0004 - 0.0004 in)
Cylinder inner diameter boring limit (diameter) to 92.515 mm (3.6717 in)

Piston Pin
Make sure piston pin can be inserted into piston pin hole by a thumb at 20° C (68° F)





Piston Rings