Patent ID: 6715454
Filing Date: 2004-04-06
Classification: F02B

Abstract:
An outboard motor mountable in use on a boat in such a manner as to undergo tilting movement about a horizontal axis and pivotal movement about a vertical axis, the outboard motor comprising: a water-cooled V-engine having two cylinder heads disposed at a rearward portion of the outboard motor and a crankcase disposed at a forward portion of the outboard motor, the V-engine having right and left lateral sides having corresponding right and left cylinder block portions each having plural cylinders disposed in vertical juxtaposition with axes of the cylinders disposed horizontally, the cylinder block portions each having a cooling jacket formed therein and extending around each of the cylinders thereof for the passage therethrough of cooling water to cool the cylinders, each of the cylinder block portions having a discharge portion disposed in a position corresponding to the position of a lowermost cylinder of the plural cylinders in each cylinder block portion, and each cooling jacket having an outlet opening to a respective one of the discharge portions.