Leak at bottom of Mast

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J

Jorge Cela

I am having water coming out of the flange where the bottom support of the mast meets the floor inside the cabin of my 1995 H 29.5. Does anyone had this problem before? and how did you stop the leak? Does the mast have an internal drainage to take any water from inside the mast directly into the bilge? It is not much water, but I never had it before and now I am having to dry that area everytime it rains. I inspected where the base of the mast meets the top of the cabin and it does not seem to be any spaces there. Thank you in advance for your advice. Jorge
 
Dec 2, 2003
4,245
- - Seabeck WA
I'm surprised no one has replied yet.

There are lots of threads on HOW asking or talking about leak damage. You probably need to fix it soon.
 
J

Jorge Cela

Thanks

Fred, Thanks I need to recheck the old forums again for suggestions. I was hoping to get a confirmation that the mast does has a drainage and it should drain on top of the cabin, not to go down into the mast support and leak out at the bottom of it inside the cabin. Maybe now someone will answer with a suggestion. thank you again Jorge
 
J

Jim A

Jorge

Do you think the leak is coming down the mast. One way to check is water the top of the mast for a LONG time and see if the water comes in. If it does not the leak is up the mast. You then have two options.. 1 take the mast down.. 2 go up the mast... You have to re-caulk all the cables! Hope this helps... Jim
 
Dec 2, 2003
4,245
- - Seabeck WA
Jim, I wouldn't think that a mast cabin leak is

controlled from the top of the mast. Assuming Jorges' mast is deck stepped, the leak is caused by failed caulking on the base plate. That means unstepping the mast. No big deal, do it. But if the mast is keel stepped, (doubtful) then water intrusion is normal. My pennies worth.
 
J

Jim A

Fred Question?

The H29.5 is a deck stepped mast. Does the mast have to be stepped to re-bed the caulk?
 
Dec 2, 2003
4,245
- - Seabeck WA
Jim, it has to be UN stepped, then all base plate

openings re-caulked and then stepped again. :)
 
L

larry

CKECK the wires

I believe there has to be a loop in the wires otherwise the water comes directly down and through the mast suport to the bilge I read it somewhere in the history files
 
J

Jorge Cela

Thank you guys...

Guys, I thank you all. I am going to recheck the plate at the bottom of the mast and look for leaks there and caulk around before I lift the mast. I noticed taht there is an covered opening, inside the cabin, directly underneath the base of the mast, where I could see the wires and I did not see any traces of water on the wires, but I would look again. In any event I will work this weekend on it (unless the weather is too good and I will just go sailing) and I will report back, once I stop the leak. Thanks again. Jorge
 
T

Terry Cox, Hunter 42, Belle-Vie

Jorge, unless the top of your mast is closed...

and sealed (unlikely) rain water will come down the mast. In my experience Hunter runs the wires through the coach roof in a short piece of plastic conduit (about six inches long) most of which extends above the coach roof so that rain water will drain out rather than pool up and spill down the conduit. A key part of rain water leaking down through the coach roof is whether the conduit is sealed properly where it penetrates the roof. In order to permanently fix the leak on our boat I had to unstep the mast (it came down for other reasons). In doing so I rebed the step plate, replaced the conduit and rebed it to the coach roof and made sure the step plate drain hole was clear. Our cabin has not leaked since. Each boat model step is different. In our case the drain hole is molded into the leading edge of the step plate bottom. When I rebed the plate I made sure the hole was clear of sealant. I also made sure that the conduit extended above the coach roof by about four inches and I used 3M 5200 sealant (4200 works, too). When I wash the boat I use a long pipe cleaner to make sure the plate drain hole is clear of debris. The previous owner of our boat tried to stop the leak by applying Silicone II sealant from inside the boat. What a mess and it did not work. Terry
 
M

Monty Miller

Terry...

I have the same problem with our 29.5. Like Larry said if the wire isn't looped inside the compression post before it comes out at the headliner, it leaks like a sieve. A lot of water runs to the base and I can't tell if there is a hole at the bottom that would allow drainage into the bilge. Maybe I should drill a hole. What you are saying is that water must be stopped at the top of the compression post where the wires enter. What is the diameter of your conduit? If I look up the hole in the compression tube there are appears to be a white plastic tube that has the same outside diameter as the compression tube. Is that the conduit? Do you think I could I just shoot some foam insulation through a long tube and seal the top of it? Also, there are no weep holes on the bottom of our mast. Maybe I should drill a hole. Thanks Monty
 
T

Terry Cox, Hunter 42, Belle-Vie

Monty, as I recall the hole through the ...

coach roof is about one inch. I think I used 3/4 inch ID white plastic PVC. Before you start drilling holes contact Hunter Marine and ask them whether your model has weep holes. Even on our boat the weep hole is hard to see. If you look at the leading edge of the step at eye level you should see a small channel molded into the step where the step rests on the deck. On our boat the mast sets into the step without the need for sealant, which would let rain water drain out around the step collar. As long as the wire conduit is at least one to two inches above the collar rim, no rain water should come into the cabin. Again, as long as the conduit is well sealed around the coach roof opening. I did not put drip loops in the wire before they come through the conduit. Terry
 
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