After 30,000 hours in operation and 100 hours in the presence of water, all the piston pins didn’t have any traces of wear, looked shiny like new.

Usually, after  17,000 hours in operation  there are extensive clearances between the piston pin and piston-pin bearing. In this case there were no clearances at all in spite of the fact that the engine was in service for 30,000 hours and had water in its oil system for 100 hours while in operation.

All the pistons had piston-skirts and piston-rings totally clean of any build-up. The rings looked like new and didn’t have any wear whatsoever (very unusual phenomenon, taking into consideration that the engine was in service for 30,000 hours and had water in its oil system for more than 100 hours.

Crankshaft Main Bearings looked like new, there were no traces of wear. They maintained their full thickness and their original coating. Usually after 17,000 hours they are chewed up. In this engine we used Polytron, there was no wear at all after 30,000 hours in operation, and 100 hours of operation in the presence of water in the oil system.