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Old 03-19-2011, 01:44 AM   #1
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Best Way to Fill These Holes in my Tub??

The previous owner of my TJ obviously welded something (maybe a locking storage box) into the back area of the tub and then ripped the welds out to remove it instead of cutting it. There are 4 holes in the tub where the welds were with three of them being about .25" in diameter and the largest being about 1"x.5". I know the absolute best way to fill these would be to have them welded up but my local shop wants $100 to do it, which doesn't include repairing the coatings underneath from the welding damage. Is there a more economical yet acceptable way to repair these (bondo, fiberglass, etc)? My fuel tank is dropped at the moment in order to change out the fuel pump module so now would be the perfect time for me to access the bottom of the holes. I plan on raptor lining my back cargo area so it does not need to look good; I just want it to last. Any suggestions or should I just pay to have it welded?

A few pics:







Thanks so much,

Wes

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Old 03-19-2011, 03:24 AM   #2
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looks like thPO was eaten up with dumd***!

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Old 03-19-2011, 03:40 AM   #3
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I spud have them welded.
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Old 03-19-2011, 09:36 AM   #4
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personal opinion,if ya got a buddy with a 110v welder-wire feed,spot weld a patch. hold the patch on the botton of the tub spot weld on top of tub, bondo ,sand,cover with bed liner. thats a pert'y quick fix. no welder?clean both sides of tub,j b weld 4 min set. smeer some on a patch on both sides of tub. thats if ya want a quick dont care what it looks like job. good luck!
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Old 03-19-2011, 09:59 AM   #5
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Originally Posted by 99jeeper
personal opinion,if ya got a buddy with a 110v welder-wire feed,spot weld a patch. hold the patch on the botton of the tub spot weld on top of tub, bondo ,sand,cover with bed liner. thats a pert'y quick fix. no welder?clean both sides of tub,j b weld 4 min set. smeer some on a patch on both sides of tub. thats if ya want a quick dont care what it looks like job. good luck!
I've got a buddy with a 110v welder but its flux core and he doesn't have the bottles for gas.... I've heard that can be difficult with thin sheet metal. I really don't care about looks at all (2 of the holes are under the back seat).... I just don't want the repair to fail 2 years down the line. Will jb weld work adequately? I'm pretty skilled with jb weld .

Thanks,

Wes
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Old 03-19-2011, 10:03 AM   #6
Knows a couple things...

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If your friend is good with his welder, flux-core wire will do the trick. Flux-core wire generates its own shielding gas.
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Old 03-19-2011, 10:12 AM   #7
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if his welder is flux core you dont need gas, sheet metel is alittle tricky to weld if your welding it all the way around, that where spot welding it in will work to hold your patch in place. take a scrap peice of metel that yer using to patch with and get your heat setting on that. i would also put a spray on under coating on the botton side to help stop rust where you welded. i like this route. i have used and seen the j b do some amazing stuff i would think that if it grabs it'll hold!
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Old 03-22-2011, 09:45 AM   #8
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Well, I think I finally got these holes fixed yesterday...and ended up paying nothing to have it done!

I dropped my TJ off at the shop yesterday morning to have the holes welded up. When I went to pick up my Jeep yesterday afternoon, they gentlemen there said "I welded a patch in for the large hole, but on the smaller holes I used a special epoxy". He also stated that he was concerned about the two back holes being over the fuel tank. I told him that I appreciated his concern, but I would have preferred that he call me and let me know prior to using repair methods that were not discussed. I also asked to see what epoxy he had used and he went and got an application gun that had this stuff called Valvoline Pliogrip in it. From what I can tell it is pretty good stuff and he swore up and down that I would never have any problems with it. The guy there told me he could tell I was quite concerned about the repair, so the work would be at no charge. I'm not one to take handouts, so I insisted that I at least pay him $25-50 for the patch that was welded in....he said don't worry about it. I thanked him for his generosity and told him that I would remember that next time I needed some work done.

Just thought I'd let you guys know what happened.

-Wes

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