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Tractor Talk Discussion Forum

Diesel fuel tank repair

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JBMac

01-28-2008 06:16:01




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On my MF 175, the return line to the tank has developed a leak around the soldered fitting on the end of the tank. Do you guys think it would be dangerous to attempt a flameless solder repair on the tank?

JBM




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Dick L

01-28-2008 10:52:27




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 Re: Diesel fuel tank repair in reply to JBMac, 01-28-2008 06:16:01  
I personally would solder it but if you choose JB Weld it is not the worse choice. If I was going the JB Weld route I would use the Water Weld, Marine putty, green putty or what ever other name that have tacked to the same stuff. The hardener is in the center and you need it with your thumb and finger and press it in place. Like JB Weld it can be ground, filed to the shape you want.



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mj

01-28-2008 09:14:36




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 Re: Diesel fuel tank repair in reply to john in la, 01-28-2008 06:16:01  

JBMac said: (quoted from post at 08:16:01 01/28/08) On my MF 175, the return line to the tank has developed a leak around the soldered fitting on the end of the tank. Do you guys think it would be dangerous to attempt a flameless solder repair on the tank?

JBM


Yeah ..... use a soldering copper ..... I've done it many times on gas tanks .... WITHOUT evacuating the fumes ..... just be sure that whatever flame you're heating the copper up with is a good distance away from the tank! 8)

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Don L C

01-28-2008 06:39:52




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 Re: Diesel fuel tank repair in reply to JBMac, 01-28-2008 06:16:01  
No problem.....remove the fuel....put air hose,with air fitting into the tank....set the air regulator at about 30#..... air will flush out the fumes as you work.....clean area very good use flameless heat(large sodering iron)....

P.S. works on gas tanks also.....



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Will- Tx.-Mn.

01-28-2008 06:58:32




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 Re: Diesel fuel tank repair in reply to Don L C, 01-28-2008 06:39:52  
Don,

I don't believe that I would try what you recommend,but I would however insert a flexible hose into the fuel tank to be repaired and fasten the other end to a car or truck exhaust pipe and let the vehicle run (idel) that way burnt exhaust would be filling in the empty fuel tank,and no chance of explosion because of fuel fumes.

I have repaired fuel tanks in the past and have always used JB weld.. and yes diesel will leak where gasoline will not

~Will

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37 chief

01-28-2008 08:28:40




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 Re: Diesel fuel tank repair in reply to Will- Tx.-Mn., 01-28-2008 06:58:32  
I had a leak on the return line on my MF 230 industrial. The line was at the top of the tank. I just cleaned it to shinny metal, used laquor thinner to do a good cleaning, and used JB weld. that was about 8 years ago. Still holding. I have used JB weld also on a aluminum diesel tank stripped drain plug. Diesel doesn't seam to bother JB weld. Stan



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JBMac

01-28-2008 08:39:08




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 Re: Diesel fuel tank repair in reply to 37 chief, 01-28-2008 08:28:40  
Thanks for the help guys. Sounds like JB weld is the way to go. My dad used say you could fix anything with JB weld and duct tape, don't know why I didn't think of it.



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