Outboard Motor Piston

Description

The piston kits of the outboard engine is composed of piston, piston pin and piston ring; The role of the outboard piston std: ① The cylinder head and the top of the piston together constitute the combustion chamber. ② To withstand the pressure of the combustion gas in the cylinder. ③ Transfer this force to the connecting rod through the outboard piston pin to rotate the crankshaft.

The piston components operate in high temperature, high pressure, high speed, difficult heat dissipation, poor lubrication conditions; So for the piston requirements: ① Has enough stiffness and strength, reliable force transmission. ② Good thermal conductivity, small thermal expansion coefficient, and good wear resistance, high temperature resistance, high pressure resistance. ③ The mass should be as small as possible to reduce the inertia force of the reciprocating motion.

The yamaha piston is installed with identification at the top of it, and shall not be installed in the order of front and back.