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Compass Marine How To | all galleries >> Compass Marine How To Articles >> Autopsy A Westerbeke / Universal Marine Heat Exchanger > How A HX Works
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How A HX Works
01-JAN-2009

How A HX Works

If you follow the arrows you can see that this HX is broken into quarters and is a four pass HX. Raw water enters & then flows to the opposite end, returns to the inlet end, turns and heads back to the opposite end and finally turns back towards the inlet end and finally gets ejected into the wet exhaust system.


If you click on the picture to blow it up you'll notice a chunk of an impeller blade that took up residence in the heat exchanger.

Nikon D40
1/60s f/4.5 at 31.0mm iso200 full exif

other sizes: small medium large
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sally 18-Mar-2012 21:38
Thank you so much for your detailed pictures and comments. I just took my heat exchanger out and have it sitting in white vinegar to get the salt out. I'm wondering now if I should have tried a radiator shop? I was told to be careful of radiator shops that don't know what they are doing with marine parts. I took an all day diesel engine class and am now trying to do the work on my engine myself. This really helped. Sally