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Unread 01-30-2011, 05:51 PM   #1
Nick_Knipp
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fuel tank dents

ive got a steel tank off the MJ thats got alot of bad dents, it needs to be fixed so the fuel pump can sit right in it. any ideas?

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Unread 01-30-2011, 06:22 PM   #2
jpywell52
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WARNING! I'VE ONLY DONE THIS ON SMALL TANKS AND ALWAYS CLEANED THEM THOROUGHLY & FILLED THEM WITH WATER FIRST TO PREVENT AN EXPLOSION!!

I've done this on motorcycles but never scaled it up to a 15 gallon tank. Maybe others here can weight in? I brazed some rod to the low spots or you can buy on those spot weld guns that spot welds a rod to the sheet metal and then used a used a slide hammer. Go slow, be gentle, apply heat around the area you are trying to pull out but not too much heat.

WARNING! I'VE ONLY DONE THIS ON SMALL TANKS AND ALWAYS CLEANED THEM THOROUGHLY & FILLED THEM WITH WATER FIRST TO PREVENT AN EXPLOSION!!
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Unread 01-30-2011, 06:23 PM   #3
jpywell52
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Sorry for all the caveats but I don't want my advice killing anyone.
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Unread 01-30-2011, 07:38 PM   #4
Nick_Knipp
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dont worry ive been burnt before, and that was a long time ago so im aware.

the fuel system is spotless atm. ill wait for others to chime in
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Unread 01-30-2011, 07:45 PM   #5
jpywell52
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Right on, well good luck to you. The other option if you can reach the dents from inside is to just use a hammer.
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Unread 01-30-2011, 07:53 PM   #6
Nick_Knipp
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thanks man, and yeah i cant get my hand in there, too tight
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Unread 01-30-2011, 08:00 PM   #7
jpywell52
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all else fails you can try to find a very strong small monkey they have smaller arms...
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Unread 01-30-2011, 08:03 PM   #8
Nick_Knipp
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nah he'd be too smart to mess with a gas tank
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Unread 01-30-2011, 08:05 PM   #9
jpywell52
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right right, don't know what i was thinking...good point.
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Unread 01-30-2011, 08:09 PM   #10
Nick_Knipp
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Unread 01-31-2011, 06:19 AM   #11
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Assuming the dents are along the bottom.. maybe you could pull the sending unit and get to the areas with some makeshift punches/spoons/hammers...etc. Maybe use some "shaped wood" as a punch.. to avoid sparks. Round off the end of a 2x4?
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Unread 01-31-2011, 09:08 PM   #12
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could buy a new one? http://motionoffroad.com/catalog/ind...roducts_id=922
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Unread 01-31-2011, 09:34 PM   #13
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Once again, only been used on smaller tanks for motorcycles.

At the Bike shop i worked out, we would make the tank as air tight as possible, heat the affected area and fill the tank with compressed air. Never done it on a large tank, but works great on small tanks.
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Unread 02-01-2011, 12:01 AM   #14
Nick_Knipp
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thanks all, but i managed to get the sending unit back in the tank and locked. now i just gotta fix that leak coming off the rubber gasket (where wires go in)
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