Dufour 38 - Mystery Leak - SailNet Community

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  #1  
Old 02-23-2009
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Unhappy Dufour 38 - Mystery Leak

Anyone out there experienced a leak in the internal water system of their Dufour?


For no known reason and at random intervals the entire water tank (fore or aft), syphons into the bilges. It can be dry as a bone for 3 months then for no reason it just happens and i have 6 inches of water below !

I am pulling my hair out trying to find it and because its intermittent this makes it even harder to isolate.

Anyone had a similar experience ??

Mike - Cuckoo
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Old 02-23-2009
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Any nylon fittings? I ask because I had several that split with age, but you couldn't tell by looking at them. every time the temp changed outside they would leak, and here is the fun part, at differant times! Oh yeah---some of the clamps didn't seat properly as a result.
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Old 03-05-2009
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And what has that got to do with a leak on a boat?
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Old 03-05-2009
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Thanks Martinini,

I'm back on the boat on Monday and i'm going to change the fittings. I had already isolated the main group of fittings at the pumps and they seem to be OK but there are others in the bilges.

Last edited by Cuckoo; 04-07-2009 at 08:42 AM.
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Old 03-05-2009
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that looks like spam
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Old 06-14-2012
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Re: Dufour 38 - Mystery Leak

Hi,

I have one mystery leak also. Water started gathering, and i cant find from were, water is salty, it gathers there, but when the boat is standing it gathers just inside that framing it does n t come out . After sucking that water out with syringe for several times it stooped.
Last season it was all fine.
There was no incident involving kiel or hull.
I checked all the pipers connecting with the hull all is perfectly dry.

Did know anything about this, its killing me!


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Old 06-19-2012
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Re: Dufour 38 - Mystery Leak

Quote:
Originally Posted by CaptainHelper View Post
Hi,

I have one mystery leak also. Water started gathering, and i cant find from were, water is salty, it gathers there, but when the boat is standing it gathers just inside that framing it does n t come out . After sucking that water out with syringe for several times it stooped.
Last season it was all fine.
There was no incident involving kiel or hull.
I checked all the pipers connecting with the hull all is perfectly dry.

Did know anything about this, its killing me!


Hi there,

I have a similar issue on my Dufour 38 Classic from 2001. Water starts accumulating within the frame in front of mast post after heavy rain (emerging from those holes marked on your pic). I have vaccumed out all of the water from last shower we had and pretty much bone dry it to be able to establish where its coming from initially. Definately its from somewhere within bow section but still I'm not 100% sure from where. I'm planning placing a hose on one side of the bow and see if we have any leak emerging along the railing and plan than to repeat that on the other side till its narrow down. Have you find your leak yet? Many thanks C-Wolf
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Old 06-19-2012
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Re: Dufour 38 - Mystery Leak

No, no luck yet.

It stayed dry for week or so, and now its all dry down there.

Funny thing for my situation is that when water gathers inside framing it doesn't come out, i suck it out with syringe an it gather to same level, until i get it all out.
It could be railing joints must check it some how.

If you get any luck share you knowledge
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Old 06-19-2012
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Re: Dufour 38 - Mystery Leak

Railing post at bow section? That might very well be the culprit! Those are the ony one that bolt down to the deck....by location make sense as water would migrate towards bildge and "fill" out first frame reinforcement. I'll attend to dismantle both this week rebed and let you know. Thanks for your suggestion. Best regards, C-Wolf
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Old 06-20-2012
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Re: Dufour 38 - Mystery Leak

Quote:
Originally Posted by Cuckoo View Post
Anyone out there experienced a leak in the internal water system of their Dufour?


For no known reason and at random intervals the entire water tank (fore or aft), syphons into the bilges. It can be dry as a bone for 3 months then for no reason it just happens and i have 6 inches of water below !

I am pulling my hair out trying to find it and because its intermittent this makes it even harder to isolate.

Anyone had a similar experience ??

Mike - Cuckoo
Check the impulse damper on your water pump. They do wear out and the first sign seems to be intermittent leakage from the underside of the pump. BTDT.

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