Cooling assembly for engine

A cooling assembly for an engine, the engine including first and second cylinder blocks with respective cylinder bores extending in a direction orthogonal to an axis of a crankshaft and arranged at right angles to the axis of the crankshaft, a first cooling jacket provided on the first cylinder block and a first cylinder head connected to the first cylinder block, a second cooling jacket provided on the second cylinder block and a second cylinder head connected to the second cylinder block, and a single water pump has first and second discharge ports respectively independently connected to the first and second cooling jackets, said cooling assembly comprising:

• a circular pump chamber for rotatably housing an impeller, said circular pump chamber being located inside a pump housing of the water pump, the water pump being arranged between the first and second cooling jackets at a position below a lowest part of the first and second cooling jackets;
• an upper discharge path extending in a diagonally upwards direction and connecting to an upper end section of the pump chamber;
• a lower discharge path extending in a diagonally downwards direction and connecting to a lower end section of the pump chamber;
• and
• first and second connecting pipes respectively extending in a straight line along a line extended from the upper and lower discharge paths in said diagonally upwards direction and said diagonally downwards direction, respectively, said first and second connecting pipes having inner ends communicating with the upper and lower discharge paths and outer ends forming the first and second discharge ports of the water pump.