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Compass Marine How To | all galleries >> Welcome To >> Autopsy A Westerbeke / Universal Marine Heat Exchanger > Brass HX End Cap Showing Dezincification
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Brass HX End Cap Showing Dezincification

A little burgundy Scotch-Brite will do a great job of cleaning an end cap. Always examine them for signs of dezincification. Dezincification is the process of the zinc being leeched out of the brass. This process leaves the remaining metal rather brittle and more prone to failure. If you see much more "pink" coppery color than this end cap is exhibiting it would be a good idea to replace the end it.

Nikon D40
1/60s f/5.0 at 38.0mm iso200 full exif

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