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  #1   IP: 67.180.98.38
Old 10-06-2014, 08:15 PM
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fresh water cooling system diagram

Would anyone have a picture or detailed diagram of how the fresh water cooling system is hooked up? The one I got with the system is completely greek to me. Must have ADHD or something or maybe just stupid. Hope you guys can help me. Would love to get my A-4 running..
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  #2   IP: 24.152.131.153
Old 10-06-2014, 08:20 PM
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A couple of questions

  1. Where did you get your fresh water cooling system?
  2. Do you have a potable water heater on board with an engine coolant heat exchanger?
  3. Will the cap on the engine heat exchanger end up higher than any other part of the engine cooling system?
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prior boats 1987 Westsail 32, 1970 Catalina 22
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  #3   IP: 67.180.98.38
Old 10-06-2014, 08:56 PM
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Bought my system from here (Moyers). Great system but hook up instructions are a bit vague. The only way I can do it is with either a diagram or a picture. I'm a visual type. Yes, the cap of the exchanger is above the engine but not enough to matter. The cap on cars and trucks are above the engine blocks. Soooooo, this is my problem.
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  #4   IP: 76.7.149.170
Old 10-07-2014, 09:24 AM
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Jess. Maybe this will help. Look at the pic of the HX found here. Scroll down to the HX only pic. http://www.moyermarine.com/cgi-bin/s...rebuilder.html
I am not at my boat but I believe that the antifreeze hose from the exit of the manifold enters the HX at the fitting closest to the cap. The fitting at the lowest point of the HX is for the hose that returns the antifreeze to the FW pump. The two fitting close to each other are for the RW. I do not think it matters which is in and which is out. I used the right hand fitting to enter and the left fitting to exit. Again I am working from memory so maybe someone can confirm this info.
Dan S/V Marian Claire

Last edited by Marian Claire; 10-07-2014 at 09:27 AM.
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  #5   IP: 74.108.24.81
Old 10-07-2014, 11:45 AM
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The Indigo FWC system uses the same HX and has some helpful drawings.

http://atomic4.com/PDF/fwc_install.pdf
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