On 30, Jun , at 9:08 AM, Ed Anderson wrote:

Doug, I have not tried that particular brazing job, but I think it would be much better than just about any other method so far mentioned.  However, that rotor housing  is  a large mass of aluminum to get up to temperature brazing temperature, so it would probably take a high BTU torch and perhaps a larger propane tank (like for the BBQ grill)  rather than the smaller bottles.  I would certainly try it on a junk housing first.  But, seeing what they did in the H2000 video with that stuff, I would say it's certainly worth a try. 
 
 
Ed

Hi Ed and Doug,
I have been following the posts on al brazing, but I am not sure I have this right.
Are you suggesting that a SS Pport tube could be TIG welded to the steel liner inside the rotor housing and brazed to the cast aluminum housing on the outside?
This sounds like the ultimate solution
BR, Dave McC