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Sugared gas tank

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Phil

03-16-2000 18:58:20




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Bought an 8N. The gas tank had been "sugared". It got to the carb but not into the engine. Have not found any solution as of yet to cut the black tarry goo. Have tried brake fluid, toluene, xylol, caustic, oven cleaner. Anybody had any experience with this before? Thanks




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tOTG

03-17-2000 16:44:50




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 Re: sugared gas tank in reply to Phil, 03-16-2000 18:58:20  
Just before Christmas I had a Farmall A with about 3" of tar/goo in the tank. I used 2 gallons of acetone and let it sit for about 3 weeks before it was all dissolved. Carburetor cleaner worked on the smaller fuel line parts.

John.CO



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indy

03-17-2000 15:12:37




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 Re: sugared gas tank in reply to Phil, 03-16-2000 18:58:20  
I do a demonstration in class where I use sugar and sulfuric acid to show a dehydration reaction.
The sugar boils and smokes then it raises out of
the beaker like a big fat snake. The beaker is nasty afterwards and I have to use nitric acid to clean it out.You could check with a school near by or plant that has a lab to get
some.I do not think muratic acid will work.It is to diluted.I say 6 molar nitric acid would be strong enough and would not harmthetank.I recently just sealed mine or I would try it.

Hope this helps..... ....

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Jay

03-17-2000 11:08:02




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 Re: sugared gas tank in reply to Phil, 03-16-2000 18:58:20  
Tried alcohol? A gallon is cheap at your friendly, local builders emporium.

Don't use too much acid inside the tank. It is plated/dipped as the outside is. Removing plating exposes more iron for more rust to form on.

Jay



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will

03-17-2000 04:19:23




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 Re: sugared gas tank in reply to Phil, 03-16-2000 18:58:20  
Phil
Try lacquer thinner.



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Mike S

03-17-2000 03:56:54




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 Re: sugared gas tank in reply to Phil, 03-16-2000 18:58:20  
To completely clean out a tank you need muriatic acid and acetone. What you might consider doing is buying one of the tank kits from Eastwood. I did it for my NAA and it worked great. Really cleans everything out of the tank, rust, varnish, crud, etc. I have used the acid by itself to clean out a lawnmower tank. Put the acid in, slosh it around, pour it out, then rinse with water, pour that out, rinse with acetone, then rinse with water again. Dry it well and you're all set. On the N-tank, you will have to take it off the tractor to do this well.

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indy

03-17-2000 15:01:05




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 Re: Re: sugared gas tank in reply to Mike S, 03-17-2000 03:56:54  
I would rinse the acid out with water and then add the acetone,pour that out and add a little more acetone,then pour that out.The acetone will help dissolve the water.Any acetone left over will
evaporate easily.

indy..... ...



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Nolan

03-17-2000 03:30:58




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 Re: sugared gas tank in reply to Phil, 03-16-2000 18:58:20  
Sugar does not disolve in gasoline. It's an old urban myth that ranks up there beside cow tipping. What you do actually have is called varnish. It's from old, old, gasoline. Made worse by the addition of more gas, usually added by the previous owner in hopes of "freshing" the tank and starting the engine, practiced over years. I bought a car with what must qualify as a record amount of this in the tank. About half a foot of the stuff. Various solvents, like fresh gasoline, do cut the stuff, very slowly, and very slightly. Other then that, it's been a case of attacking it with a putty knife and wire if I could, or replacing the components, like the gas tank, lines, and fuel pump (not applicable to an N).

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Bruce in Alaska

03-16-2000 19:12:46




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 Re: sugared gas tank in reply to Phil, 03-16-2000 18:58:20  
The black tarry stuff is carbon if my memory is correct. Try HOT water. It should dislove the remaining sugar and then you can clean the goo out.



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