Method for restoring a cylinder assembly of a reciprocating piston combustion engine

The invention relates to a method for restoring a cylinder assembly of a reciprocating piston combustion engine. The cylinder assembly includes a piston arranged in a cylinder liner, the piston performs reciprocating motion between an upper dead point and a lower dead point along the cylinder axis of the cylinder liner under the operation and installation state, so that the upper side of the piston, the running surface of the cylinder liner, and a cylinder cover arranged at the cylinder liner define a combustion space together. A piston ring set including at least one piston ring is arranaged at the piston top between the upper side of the piston and the lower side of the piston which is far away from the combustion space, so that the piston can be in friction contact with the running surface of the cylinder liner via the piston ring set under the operation state. Under the predetermined wearing state of the top area, adjacent to the cylinder cover, of the running surface, the piston is restored in the main r