Coolant passage structure of V-type liquid cooled engine

摘要

A coolant passage structure of a small V-type liquid cooled engine is provided for introducing coolant from a water pump to water jackets respectively formed in cylinders and for cooling the cylinders. The water pump is provided in a generator cover placed in a side portion of the engine or in the vicinity of the generator cover. The coolant passage structure includes a coolant passage integrally formed in the generator cover. A water gallery is formed in a crank case of the engine for supplying the coolant to the respective cylinders. The water gallery is located in the vicinity of lower ends of the cylinders and extends in a direction substantially parallel to a crank shaft of the engine between the cylinders. The coolant passage is connected to the water gallery.