> > > Tube within a tube is a good idea and very easy to accomplish.   The

 > > outer tube can be expanded to slip over the stub and heavily tacked
 > > to the flange.  Remember to smooth and blend the weld bead that is on
 > > the inside of the flange.   I think I will do that portion of my
 > > exhaust system over now that I have a clear view of this.     Jerry
 >
 > > Tailwind & Rotary Engine Support
 > >
 > > http://www.j-winddesigns.com
 > >
 > > mailto:j-winddesigns@thegrid.net

George Lendich wrote:

 Jerry,
 With welds it's best to keep them all there, a lot of strength is lost by
 grinding back.
 There is plenty of strength in a flange, take (Turn) a bit of this out
 leaving room for a solid weld.
 Just a suggestion!

 > George (down under)

Actually,  you don't need strength so much as as just a leak free
weld.  It is only supporting a little stub that is about 2 inches
long.      A bumpy weld at that location would become a hot spot  not
to mention creating turbulence.  The stub does not support any
exhaust system weight.  Jerry

Tailwind & Rotary Engine Support

http://www.j-winddesigns.com

mailto:j-winddesigns@thegrid.net

Paul Lamar
 
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