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Old 12-13-2015, 04:51 PM   #1
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1977 31' Sovereign
Chagrin Falls , Ohio
Join Date: Nov 2015
Posts: 6
best fix

Ok I'm looking for advice on a leak on my 77 31' Landyacht. I have a leak on the street side under all 3 windows. I pulled the inner wall and was expecting to find leaking windows. But at the C- Channel between the wing and first window there is an old repair, lots of Vulkem and Olympic rivets. There is a hole just at the top of the belt trim that is open about 3". also there is a gap in the C-channel just aft of the rib in this area is that normal. I was thinking that I could work a patch behind the C-channel and skin and rivet it in. I will be replacing the sub floor completely and dropping the forward pan. While the sheets look ok the moisture meter says its wet.

Thanks
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Old 12-14-2015, 11:32 AM   #2
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1973 21' Globetrotter
Houston , Texas
Join Date: Sep 2009
Posts: 2,202
Welcome tot he Forums!

I would caution you on dismissing the windows as a contributor. If the window seals are old or cracked, then the windows might be leaking and helping with the problems. You can also be getting leaks from up above (ie, any of the roof penetrations, especially the plumbing vents), that allow water to run down the inside of the wall and pool in the C-channel. The "stack" windows up above are also notoriously leaky. Since you have the walls opened up, I would advise you to set up a sprinkler on the outside to really soak down the outside of the trailer and watch closely to see what is actually leaking.

Now, if you find that the Olympic rivets are leaking, then maybe you can stop it by gooping some more sealant on the rivets from inside. The "best" fix might be to drill out all the Olympics, separate the sections of skin, clean up the interface, then put sealant between the panels before reinstalling, and dip each solid rivet in vulkem before bucking them in place. You might still end up with a leak after all of this, though.

The gap in the C-channel is normal. When you talk about a "hole" at the top of the trim, I am not sure what you are seeing--is there actually a hole/gash penetrating the shell, or just a separation between the trim and the shell that is funneling water toward the rivet line under the trim? The picture just looks like a typical poorly fitting belt trim. It doesn't need to be (certainly isn't) water tight. That belt trim, and the banana wraps, are held on by simple, leaky, pop rivets. These might be even more leaky than your olympic riveted panel repair.

good luck!
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Old 12-14-2015, 05:36 PM   #3
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1977 31' Sovereign
Chagrin Falls , Ohio
Join Date: Nov 2015
Posts: 6
best fix

There is a gash and there is a drain hole in the channel. I agree that the windows have contributed and I will be resealing them since the area is open. While the sprinkler is a great idea it wont fly in Ohio in the winter. The area where the leak was had been repaired with a piece of aluminum flashing seen in this photo at the corner of the gaucho, there id also the same flashing behind the wrap in that area.

Thank you
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Old 12-14-2015, 05:49 PM   #4
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1981 31' Excella II
New Market , Alabama
Join Date: Sep 2011
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Remove inner skins below the windows and sit out there during a rain and you will find all sorts of leaks. Check the rear of the trailer where a plate goes under the rear of the trailer. This plate funnels water into the rear floor and rots the frame as well.

Perry
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Old 12-14-2015, 06:33 PM   #5
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1977 31' Sovereign
Chagrin Falls , Ohio
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Will do the walls are out I'm ready
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