Brazing how to...
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Brazing how to...
Figuring I will have to replace my radiator anyway, I am willing to give brazing a shot to fix the small crack I have just below the filler neck, it is only about an inch long. I need a quick and dirty lesson on braizing, though. I have an Oxy/Acetyline set up and a 000 welding tip to go with it. Do I need to use a special tip for braizing, or will this work? How will I know when the radiator is hot enough to take the filler? Do I need to use flux? What kind of filler material? What kind of flame? And, anything else y'all can think of.
Thanks!
Thanks!
#2
Re: Brazing how to...
Originally posted by scott.475
Figuring I will have to replace my radiator anyway, I am willing to give brazing a shot to fix the small crack I have just below the filler neck, it is only about an inch long. I need a quick and dirty lesson on braizing, though. I have an Oxy/Acetyline set up and a 000 welding tip to go with it. Do I need to use a special tip for braizing, or will this work? How will I know when the radiator is hot enough to take the filler? Do I need to use flux? What kind of filler material? What kind of flame? And, anything else y'all can think of.
Thanks!
Figuring I will have to replace my radiator anyway, I am willing to give brazing a shot to fix the small crack I have just below the filler neck, it is only about an inch long. I need a quick and dirty lesson on braizing, though. I have an Oxy/Acetyline set up and a 000 welding tip to go with it. Do I need to use a special tip for braizing, or will this work? How will I know when the radiator is hot enough to take the filler? Do I need to use flux? What kind of filler material? What kind of flame? And, anything else y'all can think of.
Thanks!
My 0.02
Last edited by waskillywabbit; 11-01-2003 at 05:55 PM.
#3
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Is the radiator brass? I would think you could just sweat-solder the kind of crack you are describing. Same way you would solder copper pipe, use flux and solder rated for copper and brass plumbing and it should be o.k.
If the rad is aluminium, the just take it to a shop, I had a similar repair done a few years ago and it was less than $20.
If the rad is aluminium, the just take it to a shop, I had a similar repair done a few years ago and it was less than $20.
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Thanks Jayson, I tried sweat soldering it but the crack just redeveloped through the solder. I just don't think it is strong enough to withstand the pressure.
#5
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Originally posted by scott.475
Thanks Jayson, I tried sweat soldering it but the crack just redeveloped through the solder. I just don't think it is strong enough to withstand the pressure.
Thanks Jayson, I tried sweat soldering it but the crack just redeveloped through the solder. I just don't think it is strong enough to withstand the pressure.
Good luck!
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Hmmm...
If the crack is in a relatively flat spot, you might have to get a piece of sheet brass and make a little "patch" to solder or braze over it, rather than just trying to fill a hole. If you can solder, then you should be able to figure out how to braze, with a little practice. Get a small chunk of sheet brass, cut a a couple of pieces and try to braze them together using brass rod and flux. I think brass needs to get what they call white-hot, keep heating it after it gets cherry red, to braze properly. Try it using the fine tip on your oxy-welding rig.
Or just take it a shop and get a scond opinion...To see if it can be fixed.
If the crack is in a relatively flat spot, you might have to get a piece of sheet brass and make a little "patch" to solder or braze over it, rather than just trying to fill a hole. If you can solder, then you should be able to figure out how to braze, with a little practice. Get a small chunk of sheet brass, cut a a couple of pieces and try to braze them together using brass rod and flux. I think brass needs to get what they call white-hot, keep heating it after it gets cherry red, to braze properly. Try it using the fine tip on your oxy-welding rig.
Or just take it a shop and get a scond opinion...To see if it can be fixed.
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