Repairing a cracked pressure fitting



I recently experienced the brass pressure fitting on the copper pipe
running from the boiler to the group head on my Brasilia club (circa
1970) developing a small crack. I have no idea how the crack got
started, but there it was.

Having worked as a mechanic, I thought, "No problem, I'll just get out
the old JB Weld and patch it up." Somewhat to my surprise, this only
taught me that JB Weld does not stick to brass. Apparently their silicon
in brass that causes this problem.

So I thought what the heck I'll just solder the crack. I had some acid
core plumbing solder and gave it a shot. Once more, I learned that this
would not solve my problem.

So I went out and bought some solid silver solder and some food grade
water-based flux. I took my Dremel, cleaned out the crack, applied
liberal flux and said silver solder flowed in directly. Problem solved!

So for those of you who are into self repair you may learn from my
experience. If anyone knows of a parts supplier for circa 1970 Brazilian
club, I would dearly like to know about it such that I could get a
replacement part.
.



Relevant Pages

  • Re: Repairing a cracked pressure fitting
    ... running from the boiler to the group head on my Brasilia club (circa ... I have no idea how the crack got ... So I went out and bought some solid silver solder and some food grade ... If anyone knows of a parts supplier for circa 1970 Brazilian ...
    (alt.coffee)
  • Re: Repairing a cracked pressure fitting
    ... I have no idea how the crack got ... What kind of fitting was this. ... taught me that JB Weld does not stick to brass. ... So I thought what the heck I'll just solder the crack. ...
    (alt.coffee)
  • Re: Silver Soldering
    ... I will need to join small diameter brass tubes together (0.5 mm to ... Just about any silver solder you use will be as least as strong as the brass. ... I'd recommend Johnson Matthey EasyFlo powder flux. ... Make sure the joint is clean and free from oil/grease, paint the joint with the flux, and carefully heat it until the flux bubbles up, clears, and settles down. ...
    (uk.rec.models.engineering)
  • Re: colored solder?
    ... (clip) I know silver solder will do the job and looks ... brass, so you should be able to do the job without blowing a hole. ...
    (rec.crafts.metalworking)
  • Re: Does anyone know, for sure, if brass can be welded to steel ?
    ... Brass and steel cannot be welded togther. ... the silver solder. ...
    (alt.home.repair)