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Hit & Miss Gas Engine Discussion

IHC LA or LB Gas Tank Rust Problems


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  #1  
Old 11-30-2010, 12:07:58 AM
wielenberg123 wielenberg123 is offline
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Default IHC LA or LB Gas Tank Rust Problems

I have a couple of gas tanks that are rusty on the inside. They are not rusted though just surface rust. I am looking for ideas on how to shine the inside of the gas tank up. Once thats done I plan on putting a sealer in them. On one of my F-20 gas tanks i dumped a couple cups of crushed rocks in their, put in some gas. Then I rolled it around and shook it. It turned out very nice inside when I was done. I am not sure if thats the best way to do these smaller, not so heavily built tanks. Any help would be appreciated. Thanks
Mike
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Old 11-30-2010, 06:14:25 AM
Francis Francis is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

In case of a leak after you have cleaned your fuel tank internally, here is an interesting article on how to repair a leaking LA/LB fuel tank - http://www.gswagner.com/lalbtank/lalbtank.html
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Old 11-30-2010, 10:46:40 AM
wielenberg123 wielenberg123 is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

Thanks for sharing that website!!!!
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Old 11-30-2010, 11:23:09 AM
mnido mnido is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

I took a die grinder to my LA tank and cut the bottom off. Then sandblasted the inside off the tank. Then sat it over a piece of sheet metal, scribed it, cut a new bottom, then stitch welded around the entire tank. Then I used a tank sealer. Lot of work but turned out nice, and also looks original.
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Old 11-30-2010, 11:45:17 AM
Zira Zira is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

I did mine similar to what you did for you F-20 tanks, except I used acetone instead of gasolene as I had some varnish as well that needed cleaning out. It worked fine but it was very difficult to get all teh gravel out because of the baffels inside the tank.
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Old 11-30-2010, 02:41:33 PM
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Meco3hp Meco3hp is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

Hello,
I did like Mnido did with his. I cut the bottom out, plasma cut another bottom at work. Bead blaster everything, and welded it back up. Then I sealed everything! Oh I also added a drain in the bottom so I can drain the tank without removing it from the engine. I don't know why IHC never put a drain in these tanks! Oh, I made the bottom out of 10 ga. sheet. The rest of the tank will rust away before that bottom ever does!

Thanks!
Richard
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Old 12-01-2010, 07:49:13 PM
wielenberg123 wielenberg123 is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

Thanks For all the ideas guys!!! I will probally try the shingle nails and some gas. I dont have a plasma or wire feed welder easily accesible!
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Old 12-01-2010, 08:29:49 PM
midpw midpw is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

I like the response from the one fellow awhile ago. He removed the tank from wherever it was, dumped in a couple handfuls of 1/4-20 nuts that he had, closed it up and then tied the whole thing to the rear tire of a tractor. Jacked up that same side and then ran the darned thing in gear for a while until he couldn't stand the noise any longer. Clean as a whistle...

Bruce
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Old 12-01-2010, 11:30:53 PM
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MarkBillesbach MarkBillesbach is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

Mike,your tank bottom looks like the bottom on my M tank. On mine I got the inside clean by electrolosis,then I put aluminum tape over the outside (bottom).Then I used POR gas tank sealer on the inside. After the sealer cured I removed the aluminum tape and it looks like new and dosn't leak a bit.
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Old 12-02-2010, 02:24:28 PM
Reed S. Benton Reed S. Benton is offline
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Default Re: IHC LA or LB Gas Tank Rust Problems

You will cringe, but I had success cleaning the tank on my 1.5HP McCormick; put muriatic acid in for a few minutes, thoroughly flushed and neutralized and then "slushed" it
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