When the piston and cylinder wear beyond the allowable limit, it is necessary to
replace the cylinder block or piston, or to rebore the cylinder block or cylinder liner
and use oversize pistons. The piston and piston pin are usually provided as a piston
assembly.
The standard size, which indicates the piston diameter, is inscribed.
The piston must be installed facing the correct direction.
The direction is inscribed on the piston head.
The side with the mark represents the front side.
The exact location of the inscription differs according to the engine model.
