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Old aluminium boat leaks!

Posted: Mon Sep 27, 2004 10:23 am
by John Thompson
Okay, I have an old Lund, leaks like a sieve. Not sure how I should go about fixing it. Any suggestions much appreciated.


Thanks,

John

Posted: Mon Sep 27, 2004 10:37 am
by U.L.
If its the rivets that are leaking you can do a couple of things. You can reset them by puting something substatial be hind the rivet and hitting the head with a hammer or paint over the rivet inside the boat with a 2 part epoxy paint. That works very well. Did that with my old boat and it worked for years.

UL

Posted: Mon Sep 27, 2004 10:56 am
by John Thompson
Not sure where it's leaking. Can I gut the boat and paint the entire inside with the 2-part epoxy paint?

Posted: Mon Sep 27, 2004 11:05 am
by U.L.
I didn't have to gut mine as it was just a floating tin can. But that is what I did. I painted the whole inside. It was bullet proof. Just prep the aluminum and roller it. Its too thick to spray. In my case it was riets and it worked. Not sure about a seam, you may want to ask the paint dealer. Not sure if its a loose seam if there would be too much flexing.

UL

Posted: Mon Sep 27, 2004 11:23 am
by spinner
I would try to locate the source of the leaking first before deciding what to do.
My suggestion would be to use a hose and fill the boat with a few inches while looking for the source of the leaks on the bottom and mark them as they are found.

boat leaks

Posted: Mon Sep 27, 2004 11:33 am
by justbass2
Canadian tire has a product it's a puddy in a tube for aluminum you tear off a piece squish it between your fingers to get the elements working and then press it into the problem area and presto it hardens like aluminum, I use it and it works great. They even have it for wood.

Go Fish

Posted: Mon Sep 27, 2004 11:54 am
by U.L.
Sounds like justbass2 has a cheaper and simpler method. I did it with paint because I wanted to paint the boat anyway so I caught 2 fish with one hook. I think thats the way the saying goes. Obviously John if jb2s way is more applicable that might be the way to go.

UL

Posted: Mon Sep 27, 2004 11:55 am
by SteveC
Somethings just aren't worth fighting. That's why God created bilge pumps!

Posted: Mon Sep 27, 2004 12:22 pm
by John Thompson
Steve me boy, how's life treating ya? Believe me, I do have a bilge pump! You wouldn't believe how much water comes in though. I'd like to at least slow it down some?

Still playing hockey Sunday mornings?

John

Posted: Mon Sep 27, 2004 12:34 pm
by saskie
I use silicone based Marine Sealant - it's beautiful stuff but a bit pricey at $13/tube. Once you find the leaks just smear some of that goop over them nice and thick and presto - problem solved. I ended up caulking the seams of my boat with it - did a great job slowing the sieve to a barely noticeable trickle.

Posted: Mon Sep 27, 2004 2:43 pm
by John Thompson
Thanks Saskie. Where would I get this stuff? Any marina?

Posted: Mon Sep 27, 2004 3:26 pm
by spanky
if you can find the leak(s) or have the extra coinage to spend, i'd use this stuff here..... it's about $6. per package at CTC

http://jbweld.com/coldweld.html

It's been filling the crack on my intake manifold (cast aluminum) on my car for a couple months now.... used to repair cracked engine blocks aswell.... they make more than just that 1 aswell :)

Posted: Mon Sep 27, 2004 5:27 pm
by saskie
I bought it at Crappy Tire. It was in the boating section right beside the putty stuff others mentioned. I tried that too but it didn't work so well. I'd say it would be better for a puncture type hole/leak, but this goopy stuff seems to work better for sprung seams and popped rivets which was my problem.

Posted: Mon Sep 27, 2004 8:32 pm
by iankrzyzanowski
You know what!! I have an old aluminum to and it leaks... I think of it as a bigger livewell and leave it as it is!!

I got mine re welded since I found where the leak was then re applied some silicone!!

Posted: Mon Sep 27, 2004 8:36 pm
by ken & Jo