OUTPUT SHAFT STRUCTURE FOR SMALL PLANING BOAT

摘要

PROBLEM TO BE SOLVED: To prevent easy deterioration of a pipe by preventing the splash of a water in a hull and the interference of a coupler with the pipe. SOLUTION: A shaft 35 of a jet pump is connected to a rear end of a crank shaft 20a of an engine 20 mounted on the hull in such a manner that the crank shaft 20a is directed to the longitudinal direction of the hull, via the coupler 36 on the extension of the crank shaft, a coupler cover 100 is provided for covering the coupler 36 and the pipe for a cooling water communicating with the jet pump is fixed onto the coupler cover. A turbo charger 70 is arranged on the coupler 36 and the pipe is fixed onto the coupler cover between the coupler cover and the turbo charger. The coupler cover 100 can be turned around the shaft 35.