Re: Thanks, but my question was about brazing, not welding it


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Posted by David Sherman on Tuesday, October 23, 2007 at 13:33:54 :

In Reply to: Re: Thanks, but my question was about brazing, not welding it posted by Kaegi on Tuesday, October 23, 2007 at 13:23:52 :

That sounds encouraging. I'll try it. I agree the key with cast is to heat it evenly and let it cool slowly. I've even torch-welded cast iron if it was small enough that I could get the whole piece red hot first. My concern was that the difference in expansion between brass and iron might make it keep cracking due to heat cycling, but from what you're saying that isn't a problem. Given the scarcity of replacement manifolds, I'd rather fix my old ones.



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