The OMC 200 Hp V-6 Outboard Motor

This paper summarizes the objectives and choices for various design alternatives in making a 200 horsepower production outboard motor. The discussion covers the choice of cylinder arrangement, selection of scavenging process, intake system, exhaust tuning system and cooling system operation. Other areas covered include hydrodynamic considerations for gearcase design, development of a new isolation system, a new hydraulic trim and tilt system, general structural requirements and considerations for corrosion protection.