Regarded specifically for two stroke engines, certain marine diesel engines are made by a variety of manufactures including BMW, MAN and Mitsubishi. The other medium speed or four stroke marine diesel engines are manufactured by Sulzer, MAK and are responsible for most of the marine diesel engines found on the water today.

It’s said that marine diesel engines differ from ordinary engines, in that they occur damages as a result of their use and environment. Typical to these are scavenge fires and crankcase explosions. To be avoided, specific cleaning techniques must be carried out.

Simply keeping the marine diesel engines sustained, is not advisable work for amateurs. Drains, oils and rings must also be kept in exceptional condition.

There is plenty of information available, particularly for those who know what they’re doing, to help operate and fix marine diesel engines, with sources like, online eBooks and discussion forums. Most will explain how cylinders are balanced and cooling is maintained.

It seems good, to me at least, that many manufacturers and suppliers of marine diesel engine components and boating companies are found worldwide and specialise in marine diesel engines.

Indeed, there are marine diesel engine specialists who specifically work on surface treatments from new and reconditioned components. Newer components can be manufactured from cheap materials and surface treated to provide the required characteristics of wear, chemical and corrosion resistance, where worn components are almost returned to their original condition.

The defining definition of the marine diesel engines is its capacity for internal combustion which operates using a specialised diesel cycle. In basic terms; it makes diesel a cheaper fuel because it takes longer to compress and burn.

Diesel engines are manufactured as both two stroke and four stroke, often the engine oil for marine diesel engines is specialised and highly concentrated.