Originally Posted by Bludawg
Grind out that bad weld in a V shape set your box for 100 amps and burn up some 7018 do 3 passes a Root and two Fillets
^+1 no better advice. You will get a cleaner and stronger weld if you clean back the paint & grime, just a 1/4 inch or so of clean metal in the V Bludawg describes.
PS if you can weld both sides of the joint it will hold forever.
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