Liquid-cooled engine of the vertical shaft type

摘要

A liquid-cooled engine of the vertical shaft type has a row of left and right side cylinders arranged in a V-shape as viewed from the above. The cooling water jackets of the left and right side cylinders are connected to each other at the highest ends of the cooling water jackets at the sides of cylinder heads of the cylinders through a communicating passage, a thermostat chamber is provided at the highest end of the cooling water jacket of one of the cylinder heads which is located lower than the other cylinder head, the communicating passage being connected at its one end to the thermostat chamber.