Gas Tank Cleaning??

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Gas Tank Cleaning??

Postby Hoonbash » Wed Sep 20, 2006 6:49 pm

Am looking for the thread where a board member cleaned the tank through electrolysis???
Looked completely through Bob's site and never found it.
Anyone know if new tanks are available??

Thanks-Hoonbash
Last edited by Hoonbash on Wed Sep 20, 2006 11:08 pm, edited 1 time in total.
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Postby peterpan » Wed Sep 20, 2006 7:05 pm

http://www.ratwell.com/technical/FuelTa ... ation.html heres this one

but some one else had a good link that was pretty detailed on how to do it but i don't remember who it was
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Postby Hoonbash » Wed Sep 20, 2006 8:03 pm

Thanks Peterpan

I'm trying that method right now but it doesn't seem to be working that good,maybe I'm a bit impatient.

It was your post that got me to thinking about the gas tank in my 74 Vega,it hasn't ran in approx 11 years.Opened it up today and there's a lot of rust scale.Dodged a potential problem there!!
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Postby Hoonbash » Wed Sep 20, 2006 11:11 pm

It's called Electrolytic Derusting and have yet to figure out how to do it to a gas tank.
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Postby peterpan » Thu Sep 21, 2006 12:14 am

i have been putting off droping the tank for a long time because i didn't want to deal with it yet i was thinking it would be bad and would have to do this to it but i got real lucky


some one has done a thread on this
they filled the tank with a water and washing soda mix then bent a peice of bar to go inside the tank without touching the tank then hooked a battery charger to the tank and the bar don't remember for sure but i think negative to the tank then possative to the bar
they said not to use stainless due to somthing toxic
and it will produce hydrogen gas running a electric current threw water so be sure to venilate good

it has been done by some one here i just can't remember who does any one else remember any details
Last edited by peterpan on Thu Sep 21, 2006 12:30 am, edited 1 time in total.
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Postby peterpan » Thu Sep 21, 2006 12:19 am

i think i found it http://antique-engines.dickerson-design ... ectrol.asp

the thread name is Request for resto forum post
i reply in it to bring it back to the top
it doesn't tell you how to clean a gas tank but someone has done it using a bar inside the hole in the tank as the electrode i think it was on v8monza but its probably gone now
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Postby Hoonbash » Thu Sep 21, 2006 11:35 am

All I can say is WOW
That Muriatic Acid really works.Too bad I never took some before pics,the first pic shows what the whole tank was like,fairly thick scale.

Drained it out after soaking all night and took the garden hose to it and saw the scale come off,went to the car wash and blasted it.The top still needs cleaning so it's another cycle.Plan to neutralize with baking soda.
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Postby Hoonbash » Fri Sep 22, 2006 11:42 am

Rinse #2
The Top of the tank came out fairly good,the bottom is like new.
I'll have to figure out how to reach in there and give it a good wipe down.
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Postby jdandboo@hotmail.com » Fri Nov 16, 2007 7:46 pm

lol-yes-seems like gas tanks are a definite issue for these cars,,,nothing available aftermarket-salvage yards wont ship them(trust me-i'm in the biz) well-there was one in oklahoma??or somewhere out west they wanted $75 for the tank and $175 for the shipping,,,sent it to a local repair shop-they said not gonna happen-everytime i seal a hole a new one appears,,
after some research i bought the KBS gas tank sealer kit$65 with shipping,,,cleaned the outside of the tank at work this weekend and gonna seal it this week
Any advice appreciated
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Postby steelhead » Sat Nov 17, 2007 12:15 am

I took mine to a local radiator shop, had them boil it out and patch 2 holes then 2 coats of liner in the tank for $120. Then 2 coats of por-15 on the outside.Radiator guy said the tank will outlast the car now
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Postby jdandboo@hotmail.com » Sat Nov 17, 2007 10:52 am

cool-the KBS and por-15 are sposed to be about the same quality-only think i came up with bad was one called creem or sumpin
but looks like the way to go-i got thte heat on in the other house,,,actually gonna start this procedure in a bout 2 hours
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Postby patrick1151 » Fri Dec 21, 2007 11:43 pm

I saw a post here about having a tank cleaned by a rad shop and relined twice by them. I called my closet rad shop and they told me they would do that to a gas tank. Without knowing the size or condition of the tank, he gave me a rough estimate of $250.00 to do it.

Maybe I will take my tank to WA if they will do it for $120.00
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Re: Gas Tank Cleaning??

Postby Allen » Thu Feb 04, 2010 3:52 pm

Hi,
I have been unable to locate an aftermarket gas tank for these cars. I took my tank to a radiator shop for cleaning/sealing. The results were excellent, buy the downside was that they charged 200 bucks. The car is now gone, but I kept the tank for a Kammback wagon project.
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Re: Gas Tank Cleaning??

Postby AusRs » Fri Feb 05, 2010 9:00 am

gas tanks with a small hole.or even a large one or a series of pinholes are not really a large problem ,the simple way to patch them is the same way roof plumbers used to fix guttering on a house
step 1 cleanoff the external area to be repaired
step 2 make a patch panel to fit over rusted/damaged area
step 3 turn on your rather large soldering iron .............mine is about 5/8 head generates a LOT of heat !
step 4 "tin" the patch
step 5 "sweat " the 2 pieces together
step 6 clean up/sand/paint area

IF you have a small series of holes just clean up the area around ,heat up the metal with your soldering iron and gradually fill any holes ,i repeired around my filler neck with this method

NO naked flame is required to patch a fuel tank at all
the solder method is a tried and proven method of repair that will last as long as you have the car

I believe most of the tank liner (inside coating ) repairs are very worthwhile !
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Re: Gas Tank Cleaning??

Postby grandam75 » Fri Feb 05, 2010 2:41 pm

A cheap way to get the rust and dirt out is to fill the tank with a few hundred sheet metal screws or somting similar (I did one with gravel too). Then just shake the tank and flush with water until its clean inside. It works suprisingly well, almost like sandblasing it.
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