Hey guys and gals! I live in a area where the waters can get up in the 90’s and it’s caused Generator overheating shutting down year after year for me in my 350 Mariner. I’ve been told that the factory heat exchanger was just not big enough for water this warm. I purchased a secondary water to water heat exchanger which I located outside of the generator housing, this not only allowed for a better cooling it also added almost another 1/2 gallon of antifreeze to the closed loop system. I’ll attach a few photos and the results I got .... I was very excited with a 70 deg reduction in heat and that was before the water hit the factory heat exchanger.