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Compass Marine How To | all galleries >> Welcome To >> Autopsy A Westerbeke / Universal Marine Heat Exchanger > Dissimilar Metals
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Dissimilar Metals

So why do I need a zinc again.......????

That's right these heat exchangers can have as many as FIVE different metals. Can you say galvanic corrosion stew...! The zinc is there with good reason..

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Mike 26-Dec-2012 20:09
So, is the zinc there just to protect the heat exchanger or does it also protect other parts of the engine?