Overhead camshaft V-2 engine

摘要

An overhead camshaft V-2 engine includes a single power transmitting mechanism (80) disposed on one side of a crankcase (11) for transmitting rotational power from a crankshaft (21) to respective camshafts (71) of drive valve mechanisms (70). The power transmitting mechanism has a driving member (111) mounted to only one end portion (22) of the crankshaft. The thus arranged power transmitting mechanism enables downsizing of the engine. Two intake ports are formed in respective cylinder heads of two cylinder blocks and open at one end to respective first surfaces of the cylinder heads facing in a first direction, and two exhaust ports are formed in the respective cylinder heads of the cylinder blocks and open at one end to respective second surfaces of the cylinder heads facing in a second direction opposite to the first direction. With this arrangement of the intake and exhaust ports, intake pipes can be arranged with a high degree of freedom. <IMAGE>