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C5loadmaster Member
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
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Posted: Wed Jan 16, 2013 2:51 pm Post subject: Varnish in Fuel Tank |
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My M38A1 fuel tank is badly varnished from old fuel. I am thinking about cutting a 55 gallon barrel in half and boiling the tank. Anyone found a good way to remove varnish?
I've seen guys on youtube strap tanks to small cement mixers and throw small rocks inside to loosen stuff in the tank but that I think is more for rust. |
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evanso1975 Member
Joined: May 10, 2010 Posts: 615 Location: North Yorkshire, UK
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Posted: Wed Jan 16, 2013 3:21 pm Post subject: |
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Most places that re-core radiators will be able to hot-tank your gas tank, for a fee.
Alternatively, I saw this on the web (some guy trying to remove some old POR-15 tank sealer from a motorbike gas tank). Crazy idea, but might be worth a try:
go to Kmart and buy "the works" toilet bowl cleaner. Buy two bottles of it. Pour both in, fill the rest up with hot water. Plug the holes in the tank with tape, let it sit for 30 minutes shaking it around every 10 minutes. Pour it out, wash out tank and dry it with hair dryer then fog it with WD40, your tank will be shiny bare new metal inside. The s@#t is like $2 a bottle. I use to do that with my old CB hondas and the tanks were FILLED with heavy rust, cleaned them out like new every time. Not too sure though how this will work on the POR 15 itself though.
The follow up posts say it worked on the POR-15 sealer......
Owen. _________________ Owen
1951 US Air Force M38
1944 F-1 1/2-ton Airdrome Trailer
1940 C15 Chevrolet CMP 11-cab
1939 DKW KS200 Motorcycle
MVT # 19406 |
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C5loadmaster Member
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
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Posted: Wed Jan 16, 2013 3:28 pm Post subject: |
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Thanks, I will give it a try this weekend. I'll get some before and after photos to document it. I also have 5 gallons of Metal Rescue that works very well on plain old rust but does not dissolve grease or varnish. |
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brimac Member
Joined: Sep 04, 2006 Posts: 49 Location: Brockton Ma.
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Posted: Wed Jan 16, 2013 7:44 pm Post subject: |
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I had a old lawn mower with a metal gas tank that was coated inside
with a gum like goo. 6oz of MEK solvent cleaned it up real quick.
With the way things are today I would send it to a shop to have it boiled out. (MEK is nasty stuff to deal with) |
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C5loadmaster Member
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
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Posted: Sun Jan 20, 2013 4:03 pm Post subject: |
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Well the experiment with "the works" toilet cleaner is a bust. Had a 10 gallon pot boil boiling water at the ready. Dumped the first bottle of toilet cleaner in the tank and a couple spaghetti pots of boiling water in to help it along. While I was letting it soak I was wire brushing the rust off along the lower seams. The wire brush opened up some very fine holes from the rust and it started to leak. So that seals the deal, getting a new tank. Not worth trying to weld the holes cause that's telling me it's paper thin. I can just see more holes starting to leak as I run down the road.
Anyone have good luck with new tanks and who to order one from? |
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Ryan_Miller Site Administrator
Joined: Apr 03, 2005 Posts: 1634 Location: Kansas
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Posted: Sun Jan 20, 2013 9:11 pm Post subject: |
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There is a place here in the U.S. that will take your tank apart and rebuild it. After seeing the hit and miss of the MD Juan tanks, I would think twice.
At the very least, don't throw your old tank out just in case. _________________ Ryan Miller
MVPA # 22010 |
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16260 Location: Wisconsin
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C5loadmaster Member
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
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Posted: Tue Jan 22, 2013 1:28 pm Post subject: |
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Ryan /Wes,
Do you have the name and phone number of that company to reskin my tank?
Matt |
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wesk Site Administrator
Joined: Apr 04, 2005 Posts: 16260 Location: Wisconsin
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C5loadmaster Member
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
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Posted: Tue Jan 22, 2013 2:55 pm Post subject: |
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Roger, will do! |
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C5loadmaster Member
Joined: Jan 12, 2013 Posts: 29 Location: Clinton, CT
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Posted: Mon Feb 04, 2013 7:02 am Post subject: |
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Who is the best source for a new fuel tank? I see the ones on ebay anywhere from 399 to 500 .
Most of them look like they are all from Omix-ADA 17720.07? Is the issue on some of these new ones the filler angle? My engine is almost done so I need to pull the trigger on one.
Matt |
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evanso1975 Member
Joined: May 10, 2010 Posts: 615 Location: North Yorkshire, UK
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Posted: Mon Feb 04, 2013 7:42 am Post subject: |
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Sadly, all the new tanks are made by MD Juan in the Phillipines (Omix-ADA are one of their authorised dealers). I got lucky and ended up with one that fit my M38 very well, but for every half-decent one it seems you get at least three bad ones. Quality control, ha-ha.
The best suggestion is if you can find a dealer close enough for you to drive to, take your old tank with you and compare it to one of the new ones. Alternatively, cross your fingers when you part with the $$$.
I'd recommend getting the tank repaired locally, but if you go down the new tank route I wish you luck.....
Owen. _________________ Owen
1951 US Air Force M38
1944 F-1 1/2-ton Airdrome Trailer
1940 C15 Chevrolet CMP 11-cab
1939 DKW KS200 Motorcycle
MVT # 19406 |
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