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POR15: Patch It

That’s fair. I went to each individual pit with a leather poker and tried to drive it through. I only had 3 pits turn into holes and I kept at it till I reached white metal.
 
Just waiting on my mig welder to corner tack and stitch this. Hope this works out. I’ll probably have to work really slow.

I bought solid mig wire in anticipation of using gas but I don’t have any bottles to fill and I don’t want to spend $200 for just this patch. Should I get some .030 flux wire?

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Just waiting on my mig welder to corner tack and stitch this. Hope this works out. I’ll probably have to work really slow.

I bought solid mig wire in anticipation of using gas but I don’t have any bottles to fill and I don’t want to spend $200 for just this patch. Should I get some .030 flux wire?

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You could do that job with flux core wire no problem.
 
Ok I bought some .030 flux core cable. Fingers crossed.

Not sure if I like the gaps that wide or not, I’m totally new to welding
 
Those gaps are fine. Just dont dwell in one spot for more than a second. Lay some scraps down with a similar gap, and practice a bit. Be sure to leave an opening where the gap is (no backing material) that will give you some good experience. check out your welders settings chart to see where to begin, then experiment a bit with wire feed and amperage.
 
Those gaps are fine. Just dont dwell in one spot for more than a second. Lay some scraps down with a similar gap, and practice a bit. Be sure to leave an opening where the gap is (no backing material) that will give you some good experience. check out your welders settings chart to see where to begin, then experiment a bit with wire feed and amperage.
Will do, I got plenty of spare metal. Thanks for the support!
 
I redid the whole front floor pan, rockers, inner rockers, and kick panel. With flux core.

The trick is finding the right settings. Then it's hundreds of little tacks or very short beads. Take lots of breaks as it will warp fast or burn through.

By the time I was finishing up, It was second nature. The first patch was frustrating.
 
Man this flux is hard to work with. It’s a process of weld, grind the excess down (not easy), reweld the pinholes (hope they don’t burn through), grind, repeat. I guess I’ll eventually get it. I guess seam seller is my friend. Should have forked the money over for a gas tank. Good thing I’m working on a patch that won’t be seen under my carpet.

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for a 1st project not so bad. If you can hold a piece of copper under your weld seem or hole it help keep the weld from falling, I found it easier to fill holes.
long clamps, or just a piece of wood and jack, what ever it takes, only need to be there while you weld.
 
Man this flux is hard to work with. It’s a process of weld, grind the excess down (not easy), reweld the pinholes (hope they don’t burn through), grind, repeat. I guess I’ll eventually get it. I guess seam seller is my friend. Should have forked the money over for a gas tank. Good thing I’m working on a patch that won’t be seen under my carpet.

View attachment 460581
Is this a dual gas/flux unit? The polarity gets swapped between them and trying fluxcore with the gas polarity works very bad. Like the weld wants to jump away instead of melting in.
 
Is this a dual gas/flux unit? The polarity gets swapped between them and trying fluxcore with the gas polarity works very bad. Like the weld wants to jump away instead of melting in.
Yea, but the leads only hook up one way. It’s a Harbor Frieght Titanium 140Amp. The green one.
 
Sand blast the floor inside + underside...

Bad pin holes, braze them closed up....

Minor thin spots... Por 15.paint & por cloth...a top coat of POR 15 Bedliner over the floor & sides.

Skip the flap wheels &; grinding discs.. . They eat good metal thin.

Will attach images of mine, repaired as described above.

You can see the texture of the cloth in the black and in the gray por paint....metal was good...I wanted to see how the cloth worked...it sucks up alot of the por paint.

rear-floor.jpg

floor.jpg
 
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Since it's an inverter welder I wondered if they swap the polarity internally by flipping a switch on the front panel, but apparently not.
 
It appears your new welder might do gas welding. Is there a brass fitting on the back ? If so you would need a regulator hose and bottle
 

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