Piston: Specifications

Pistons

General data

Important
Different makes of piston must not be fitted in the same engine.

Control values, pressure

Piston types

Classification of pistons and cylinder bores
The piston classification is stamped on the piston crown roof. The piston classes for service are B

First oversize (+0.5)

Second oversize (+1.0)

Piston classification

Piston diameter
Piston diameter is measured at right angles to the gudgeon pin holes, 11 mm from the bottom of the piston.

Piston rings

Gudgeon pin