US Patent:
20100031902, Feb 11, 2010
Inventors:
Edward J. Alyanak - Fond du Lac WI, US
Joseph L. Bradley - Fond du Lac WI, US
International Classification:
F01P 5/10
Abstract:
Inserts are disposed in water passages of the engine of an outboard motor in order to inhibit the flow of water, drawn from a body of water, in thermal communication with certain portions of cylinder walls of the engine. Extensions are formed as an integral part of the inserts in order to maintain the proper location of the inserts within the cooling passages.