welding pot metal??

Iffin it was my tractor, I would sort through the scrap pile beneath my work bench, and drag out enough real metal, and fab up a new one.
If you really want to repair the old one, go to Shop Floor Talk website, and ask there. Those guys are a wealth of information.

Iffin it was my tractor, I would sort through the scrap pile beneath my work bench, and drag out enough real metal, and fab up a new one.
If you really want to repair the old one, go to Shop Floor Talk website, and ask there. Those guys are a wealth of information.

Use of the pejorative term "pot metal" really only means that you don't know what it is. If it is porous then it is cast. If a magnet sticks to it then it must have a fair amount of iron, you could try chipping it with a cold chisel and observing the results. Cast iron is more brittle and makes a short chip (unless it is ductile iron!)and could be 1) welded with nickel rod, 2) brazed with bronze, 3) fusion welded with cast iron rod. Cast steel usually makes a longer chip and could be welded by all the usual for ways steel, but you may need to use a pre and post heat treatment if it has a lot of carbon. Or like the man said, fab a new one if you like. My vote is for the brazing, its fast, easy and strong enough unless you have a lot of trees around