OIL TANK SYSTEM FOR ENGINE

摘要

To provide an oil tank system for an engine, which is capable of reducing the entire height of the engine. Breather chambers 67 and 77 of a dry sump type engine 20 in which an oil tank 50 for storing engine oil is provided independently from the engine 20 are defined in an oil tank 50, and the breather chambers 67 and 77 are communicated to the engine 20. A breather chamber section is partially partitioned into the first breather chamber 67 and the second breather chamber 77 by means of a gasket 79. An oil sump portion for accumulating oil at the time of turn-over of a watercraft is formed in the first breather chamber 67. An oil return passage 67d provided in the first breather chamber 67 forms a breathing passage at the time of turn-over of the watercraft. A sump portion for oil which counter flows in the return passage 67d at the time of turn-over of the watercraft is provided in an upper portion (lower portion at the time of turn-over) of the second breather chamber 77.