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  #1  
Old 06-12-2019, 05:28 PM
Foghorn's Avatar
Foghorn Foghorn is offline
 
Join Date: Feb 2018
Location: Virginia Beach
Posts: 220
Default Tank over prosealed?

I'm checking out my new to me tanks. One tank has about 5 rivets leaking and the other tank didn't leak but it has lots of proseal. There's also quite a few rivets that look like the proseal has pushed them out or they weren't set very good (or at all).

What do you guys that have gone before me think. Can I fix the leaking rivets, the high rivets and what about all that proseal around the rivets?

Should I just make my own for peace of mind?

Thanks,

[IMG][/IMG]

[IMG][/IMG]
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  #2  
Old 06-12-2019, 05:43 PM
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wirejock wirejock is offline
 
Join Date: Oct 2005
Location: Estes Park, CO
Posts: 4,759
Default Tanks

Try sanding off the excess and see if it's ok. Looks like proud rivets not set properly.
Leaking rivets are another story. You would need access holes in the baffle to buck the replacements after drilling them out. Vans sells the hole panels. The last option would be to assemble new tanks.
Personally, I would build new ones.
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Last edited by wirejock : 06-12-2019 at 05:45 PM.
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  #3  
Old 06-12-2019, 05:56 PM
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Carl Froehlich Carl Froehlich is offline
 
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Like Larry said, build new tanks. Find a local builder to assist.

I offer that this is just the first indication of a host of problems.

Carl
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  #4  
Old 06-12-2019, 07:02 PM
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BrianDC BrianDC is offline
 
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Location: Northern VA
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Aft row of rivets isn?t a huge deal. You could drill out and re-rivet as you have access. Rivets on the nose are another story. Repairing those through an access hole sounds like the beginning of a very difficult journey. Tough call but building a new set of tanks sounds like an easier road vs trying to repair.

Sorry for the not so great news.
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  #5  
Old 06-12-2019, 07:19 PM
Robin8er Robin8er is offline
 
Join Date: Sep 2015
Location: Socal
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I think you could save these tanks. Like Brian said, the rear set of rivets is easy to fix. Just drill out the rivets that are leaking, dab some pro seal on and re-rivet it. It could all be done in less than an hour.

If you have leaking rivets other than the rear row you may be able to use the green locktite people talk about. I havent used it, but apparently it works. You could also carefully remove the rear bulk head, replace the bad rivet, clean the tank, then proseal and re-rivet the back bulkhead. It would be tedious work, but then again so is building new tanks.

Pro seal isn't as bad as people make it out to be. Its messy and smelly and takes forever to clean after it has cured, but its not at all impossible. It just takes some patience/dedication/elbow grease.

As for the proseal on the outside of the tank, I used a scotchbrite wheel on a drill to clean it, then use a dental pick to clean up around the rivets. When you got it nice and clean, use your favorite primer and then paint it when you are ready for paint.
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  #6  
Old 06-12-2019, 07:28 PM
Larry DeCamp Larry DeCamp is offline
 
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Location: Clinton, Indiana
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Default Ask me how I know 😒

Fix the bad rivets and send them to Minnesota for refurb/ sealing.
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  #7  
Old 06-12-2019, 08:07 PM
sf3543 sf3543 is offline
 
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Location: San Antonio, TX
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If it were me...
I would mark all the leaking rivets
Drill off the rear baffle
Drill out the leaking and any other bad looking rivets
Rivet in new rivets with proseal to replace the bad ones.
Get in there and really clean everything in preparation for new pro seal
Put a layer of proseal over every rivet and joint in the tank.
Then install the back baffle according to the plans
Extra pro seal inside the tank doesn?t hurt.
While it?s open you can check the vent line as well as the fittings in the root rib.
I don?t think it?s that big a deal but if you have access to a local builder who has done proseal before to get you started it would be nice.
Good luck.
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  #8  
Old 06-12-2019, 08:52 PM
David Paule David Paule is offline
 
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Location: Boulder, CO
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If you're going to build new tanks (I would), it's certainly worth trying to fix the existing ones first. If nothing else, you'll learn a lot. And you might get good tanks out of it, too.

Dave
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  #9  
Old 06-12-2019, 09:10 PM
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johnbright johnbright is offline
 
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Location: Newport News, Va
Posts: 389
Default Tank simple dies

If you build new tanks I recommend tank dimple dies.
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  #10  
Old 06-13-2019, 05:24 AM
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Foghorn Foghorn is offline
 
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Location: Virginia Beach
Posts: 220
Default

Thank you for the advice. I'll probably start with Davids recommendation and then proceed to new tanks, if necessary. The rest of the wings look pretty good and the lower outside skin is still off so fixing any proud rivets I find should be fairly easy.

Thanks
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