Re: OA Filler rod for car repair

The old guys would braze the panels, but otherwise just use some standard O/A filler rod, you will probably want to use 3/32" or even 1/6" for your panels. Use a small tip and a slightly carborizing flame to keep the heat down and the oxidizing to a minimum. 1/8" to 1/4" lap will make alignment much easier. Use a forming tool to get the metal on one side lower than the other to get the surface right.

Biggest problem with O/A is that it puts a lot more heat into the panels than MIG, heat = distorsion. Second problem is that rusted panels need to go out to some solid metal. Makes the small rust hole into a small caveran.

Jim wrote:
Which OA filler rods would you recommend for welding new panels to my trusty old mini (a real one none of that bmw nonsense) ?
I'll be doing some repairs ro the inner sills and also I have to *** weld some new rear quarter panels on so obviously the welds there will have to be ground flat and lead loaded afterwards to get rid of any dents/gaps
Thanks as always for any suggestions
Jim 
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