Yanmar Engines

We call it our “semi open deck construction”, and it is a feature of all our direct injection TNE engines.

When combined with our super-thin full metal head gasket & high top piston ring design, it means that dead spaces and cool air pockets (places the flame front finds hard to reach, & which are a major source of unburned exhaust gases) are reduced.

We’ve also worked on our water galleries to further cool any hot spots in the ed the swirl char-acteristics in and around our com-bustion chambers.

When these are teamed with the extremely dose matching of injec-tion pumps and nozzies, the resulting exhaust gas is impressively clean.

CONVENIENT “ONE SIDE” MAINTENANCE