Bores generally noted according to the letter stamped on the cylinder :
- A: 54,000 to 54,010
- AB : 54.010 to 54.015
- B: 54.015 to 54.025
The recommended clearance is at least 5 hundredths, i.e.:
- A: 53.95 maximum
- AB : 53.96 maximum
- B: 53.97 maximum
In use, the games are often higher, therefore a value lower than the indication above.
Maximum wear corresponds to a piston clearance of approximately 0.08 mm and should not exceed 0.1 mm.