Ok, so maybe I go back to testing the heat exchanger with a pump and a
bucket of water. The pressure around the boat yard is probably near 30
or 40 lbs or so.... I may try the "glassblower" method first!
On 5/2/2017 3:26 PM, Bruce Whitmore via CnC-List wrote:
Interestingly, when we took possession of our '94 37/40+, the water
heater was also bypassed. The hoses were still connected, but a
section had been cut out to make the loop. As a check, I flushed the
hoses with clean water (there was actually still antifreeze in them
which gave me comfort that the heater was probably not leaking), and
then plugged one end with my finger and blew heavily into the other
end. Not a proper pressure check by any means, but it was enough to
give me some confidence.
Then, I filled the heater with antifreeze & water mix as a stop-gap
until I could get around to fully flushing the engine and replacing
the antifreeze.
It's working great.
I agree that the clear hose is not a good substitute for proper heater
hose.
Bruce Whitmore
(847) 404-5092 (mobile)
bwhitm...@sbcglobal.net
------------------------------------------------------------------------
*From:* Frederick G Street via CnC-List <cnc-list@cnc-list.com>
*To:* cnc-list@cnc-list.com
*Cc:* Frederick G Street <f...@postaudio.net>
*Sent:* Tuesday, May 2, 2017 12:10 PM
*Subject:* Re: Stus-List Water heater Mystery
Danny — I’m not sure why they disconnected all of that; but given the
high coolant temps, I would definitely replace all of the
nylon-reinforced hose with high-temp rated hose. I’ve seen the clear
hose develop “aneurisms” when under high temp and pressure; these will
burst and you’ll lose all your coolant.
Having said that, it’s nice to be able to see coolant flow, which the
black high-temp hose doesn’t allow. In doing a quick search, it
appears that there is now silicone high-temp (500F) hose available.
This might be a nice option if you want to see the coolant flow. I
don’t have any personal experience with this hose.
— Fred
Fred Street -- Minneapolis
S/V Oceanis (1979 C&C Landfall 38) -- on the hard in Bayfield, WI :^(
On May 2, 2017, at 10:56 AM, Danny Haughey via CnC-List
<cnc-list@cnc-list.com <mailto:cnc-list@cnc-list.com>> wrote:
Hello all,
Well, In the fall of 2015, when we were in the process of buying our
boat, the water heater was hooked up and tripping the shore power
breaker at the survey. Surveyor said, it's probably just the element.
There is a loop in the engine for the piping to the coil heat
exchanger inside the water heater. This was hooked at inspection.
Well, as i needed some repairs done for the delivery home, I hired
the yard where she spent 26 of her 30 years to fix a few things.
Drain the old fuel, replace filters, replace some gauges, repair the
toilet. Well, after I got the boat home I realized they had
completely disconnected and bypassed the heat exchanger tubing from
the water heater to the engine and never said anything to me about.
I called and called and called to try and find out why but, they
simply refused to return my call.
My question now is, should i just hook it back up and see what the
issue is?
Here is a pic at survey.
https://1drv.ms/i/s!Al8x-ET7_b7Mn1uGbsxTIdKR5WX3
<https://1drv.ms/i/s%21Al8x-ET7_b7Mn1uGbsxTIdKR5WX3>
You can see where nylon reinforced hose is attached. Now, those two
connections are by passed. I guess I could hook up a pump and pump
water through the heat exchanger and see if anything horrible happens
that way. Then, at least, i wouldn't get antifreeze all over the place.
Anyway, any insights, advice or observations will be great appreciated!
Danny
Mattapoisett, Ma
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_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
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All Contributions are greatly appreciated!
_______________________________________________
This list is supported by the generous donations of our members. If you wish to
make a contribution to offset our costs, please go to:
https://www.paypal.me/stumurray
All Contributions are greatly appreciated!
