Piston Classification
PISTON CLASSIFICATION
| Standard A | mm | |
| Standard AB | mm | 89.9664 - 89.975 |
| Standard B | mm | 89.975 - 89.982 |
| Standard C | mm | |
| 1st oversize (0.5) | mm | 90.457 - 90.475 |
| 2nd oversize (1.0) | mm | 90.957 - 90.975 |
| Piston clearance, nominal | mm | 0.025 - 0.056 |
PISTON, CYLINDER CLASSIFICATION
| Classification, piston/cylinder |
||
|---|---|---|
| A/A | mm | |
| AB/A | mm | 0.026--0.056 |
| AB/B | mm | 0.055-0.032 |
| B/B | mm | 0.025--0.055 |
| B/B+ | mm |