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> 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!Al8x-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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