Overheating problem - Flushing Heat Exchanger

In this episode, we try to chase down an overheating problem on our starboard motor - a 2006 6.2 Mercruiser MX Horizon with closed cooling system. We’ve had some overheating when running high rpm on our 341 Meridian so go step by step through the system to eliminate any coolant flow issues through the engine. Follow along as we check the thru-hull strainers, raw water pump, transmission cooler, heat exchanger, thermostat and finally do a flush of the entire engine.