I have been using oxy acetylene to patch weld some small holes in the floorboard with filler rod. my problem is bigger holes dont wanna accept the filler rod and flake offwhat is the best way to do this?

[IMG]local://upfiles/43944/20044CA7CA4D45B68C4556B17A03660E.jpg[/IMG]

[IMG]local://upfiles/43944/AC692CF551894068B9894552B6F65FA1.jpg[/IMG]

[IMG]local://upfiles/43944/3EAA540A368F43D68007C6B0621057E6.jpg[/IMG]

[IMG]local://upfiles/43944/64A5F7D61D2A419697EA53879317BD57.jpg[/IMG]

 

MiG welder and make patches to replace all the rusted parts. If its flaking off, its too thin to be welded and needs replaced. You are taking the long way about that my friend.. it works but Mig is faster and less costly in the long run.

 

What kind of metal can i make patches out of for some holes?

 

just get some flat sheet metal from somewhere, maybe 1/8 inch thick or so. cut out all bad spots and cut a patch piece slightly larger so it overlaps. weld that into place, dont forget to caulk.

 

I'm doing the same thing with my cowl. Using Oxy. You need to make patches for the larger holes. Oxy is OK for consealed jobs, but when you get to outer panels you need to go MIG! I'm sure you've noticed how much warpage you get with Oxy.

 

I have the old body parts from the fastback. The hood has large flat metal, the fenders have some curves and body lines I can match up to other cars. Old doors often have flat metal you can shape to fit as well. I dont go out and buy sheetmetal stock, I just hack it off a vehicle that I am junking or the parts I am replacing with new fenders/hood/doors etc.

Grimm is 100% correct, you will put far too much heat in the metal and warp it with a torch, Mig or Tig are the much prefered methods. A Mig can be bought relatively cheaply and most will work well on sheetmetal, you just need to practice a bit before hanging a quarter panel.. lol.

 

I have a bunlch of stick welder machines lying around the farm to bad i cant use those they would blow a hole in the metal in no time hey anyone give me any ideas on where to get a good mig or tig welder from? il prolly just end up barrowing the nieghbors or renting one

 

You can get a decent flux core mig welder for about three hundred. I am saving up for a gas mig ($600.00). I got the Oxy cause there is alot I can do in the mean time! Cowls, trunk, door patches, and floor pans. For the small patches you need you can get the cheap sheet metal form Home depot or salvage like Thumpin does. I have a fender that is beyond repair so I'm going to start hacking it up soon for the patches I need on my doors.