Over a period of time, I'm losing antifreeze from the engine. I haven't seen any leaks coming from any of the hoses or hose connections while the engine is running. Can anyone confirm that the likely cause is a leak in the heat exchanger? The engine is a Yanmar 3GMf, 20hp model. How difficult is it to replace/repair the heat exchanger core?
Alan Bergen 35 Mk III Thirsty Rose City YC Portland, OR
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