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What is the difference between the cylinder body of the four stroke Boat Engine and the two stroke Boat Engine?
Jan 02, 2018

What is the difference between the cylinder body of the four stroke Boat Engine and the two stroke Boat Engine?


1) the intake and exhaust ports of the four stroke Boat Engine are usually located on the cylinder head, and the cylinder is only a light hole. There is a rectangular channel between the two cylinder cylinders of the dual cylinder engine, and it can pass the timing chain and install the tension mechanism.


2) most of the two stroke Boat Engine are equipped with reflux and cross flow scavenging mode. During the working process, the piston is used to carry out a partial stroke near the bottom dead center, so there are exhaust ports and scavenging ports in the lower part of the cylinder. The shape, size, location and surface roughness of these ports are very important, because they are related to the scavenging efficiency of the engine and the performance of the engine.


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