Welding question

SteveinMo

Member
I have a yard roller that has sprung a number of leaks, my question is can I mig weld on it with it full of water? Lots of leaks and I don"t want to keep dumping the water every time I do one or two. Of course I would roll it so that the water is not comming out of the hole I want to weld.This is tractor related as I pull it around the yard with my Cub.
 
My dad made a little roller out of an old cold water tank, about 40 gallons. Poured it full of concrete, and we towed it with the lawn tractor no problem. Didn't have to worry about draining water out, or freezing or splitting with frost.
We still use it, 40 years later.
 
Yes you can, but you have to vent it while doing it or it will be very hard to seal. The heat from the weld will cause higher presure inside and the air coming out will cause pin holes. You can probly get close without it, but it will be tough. drain all gthe water out and then use a small amount of air presure and some windex to check your welds will work better. You don't need much presure, just use a blow gun at fill hole and stuff a rag in to fill it. Done this lots of times.
 
I would weld only large holes. If the thing has a lot of leaks it has a major rust problem inside. I would drain it and flush it out with muriatic acid or picklex 20 to get the rust out Then I would coat the inside with epoxy primer. The primer will fill the small holes and prevent further rusting. It sounds like its border line of rusting away.
 
We had one many years ago that Dad screwed up and left the water in it one year- probably 60 years ago. It froze and pushed the ends out and popped the roller bearings off the axle shaft. We used a sledge hammer to beat the ends back in, welded the ends back to the axle, replaced the bearings, cut a hole in the end, and filled the roller with cement. No more freezing problems, it's super heavy, and after using it myself, I loan it out to all of the neighbors for their lawns. That old roller has outlasted about ten tractors over the years, and looks like it will outlast me.
 
Drill or torch a 4 inch hole in the end and start filling it with concrete. If you are constantly fixing one or two holes every couple times out, its rusted/worn too thin, the welding is just a band aid.

Rick
 

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