Piston diameter
Piston diameter is measured at right angles to the gudgeon pin holes, 11 mm from the bottom of the piston.
PISTON DIAMETER
| Classification, piston/cylinder | Fits cylinder bore | |
|---|---|---|
| A/B piston fits both A and B cylinder bores | mm | 90.000 - 90.020 |
| B piston | mm | 90.007 - 90.020 |
| Permitted piston clearance | mm | 0.025 - 0.056 |