Piston

HOW TO SELECT PISTON AND BEARING

Piston


WHEN NEW CYLINDER BLOCK IS USED






- Check the cylinder bore grade on rear left side of cylinder block, and select piston of the same grade.
- If there is a corrected stamp mark on the cylinder block, use it as a correct reference.

WHEN CYLINDER BLOCK IS REUSED

1.Measure the cylinder bore inner diameter. Refer to "Inspection" Inspection.
2.Determine the bore grade by comparing the measurement with the values under the cylinder bore inner diameter of the "Piston Selection Table".





3.Select piston of the same grade.






PISTON SELECTION TABLE

Unit: mm (in)





NOTE:
- There is no piston grade "1".
- Piston is available together with piston pin as an assembly.
- The piston pin (piston pin hole) grade is provided only for the parts installed at the plant. For service parts, no grades can be selected. (Only grade "0" is available.)