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The one of most important topics regarding to the operation of long stroke marine engines is maintaining the serviceability of engines cylinder liners and piston rings. During operation of engines cylinder liners lubrication to be properly adjusted by adjustment of cylinder oil feed rate to maintain proper wear rates. This process must be monitored to avoid engines failures. Close monitoring wear of liners and piston rings gives opportunity to optimize cylinder lubricating oil feeding rates to reduce cylinder oil ...

During operation of Marine Long Stroke Engines used as a ships main propulsion, an excessive wear of cylinder liners and piston rings and problems associated with scuffing have frequently occurred. Such failures share the highest proportion in statistics of all engines failures. In order to prevent all these problems, it is necessary to conduct assessments of cylinder liners and piston rings condition frequently, during normal operation of engines. To identify wear factors of piston rings analyzed the wear records...