ENGINE COOLING PASSAGE STRUCTURE

摘要

A cooling passage structure for an engine is configured in such a manner that the discharge opening of a water pump is disposed facing the position of a crank case, which is located near the rear of a cylinder block. In a side view of the engine, an introduction passage is formed within the walls of both the crank case and the cylinder block in such a manner that the introduction passage extends substantially parallel to the cylinder central axis of the cylinder block from the discharge opening and is connected to a peripheral wall cooling passage.