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Compass Marine How To | all galleries >> Welcome To MarineHowTo.com >> Autopsy A Westerbeke / Universal Marine Heat Exchanger > Dissimilar Metals
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15-JAN-2009

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..

Nikon D40
1/60s f/9.0 at 18.0mm iso200 hide exif
Full EXIF Info
Date/Time15-Jan-2009 17:17:56
MakeNikon
ModelNIKON D40
Flash UsedNo
Focal Length18 mm
Exposure Time1/60 sec
Aperturef/9
ISO Equivalent200
Exposure Bias
White Balance
Metering Modematrix (5)
JPEG Quality
Exposure Programaperture priority (3)
Focus Distance

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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?