Outboard engine construction adapted for use with deep draft and shallow draft vessels

摘要

An outboard engine construction in which an engine is mounted at the upper end of an extension case provided with a stern bracket adapted to be clamped to a stern plate of a vessel and a gear case having a rotatable propeller is connected to the lower end of the extension case. A drive shaft connected to a crank shaft of the engine is housed within the extension case and a drives a gear assembly connected to the propeller. The extension case is constituted by a primary upper case portion and a selectively removable auxiliary lower case portion. A transmission is contained in the auxiliary case portion and is detachably interposed therewith between the drive shaft and the gear assembly.