|
Thanks, Bill
I have some of the same concerns you have expressed! I'll be
watching that exhaust closely as it should crack sooner perhaps before
later. The tubes welded directly to those thin exhaust flanges (308
type) are inconel 718, same strength at 1650 degrees as mild steel at room
temperature and welded using TIG and Haynes alloy 214 as I remember (4 1/2 %
aluminum Ni base alloy). Weather they provide enough restraint to keep the
thin flanges flat against the engine...we will see. I am anxious to get
airborn to experience my own "hiccups" so prevalent in the
comments.
Regards
Randy
I thought I might send you a little side note, not on the list.
the intake manifold looks nice, I would though hope that the
exhaust manifold will be getting some of the same attention.
It seems
that the exhaust flange is quite thin. Due to the stresses and
temperatures that it will see, even if built in inconel, at that thickness it
will likely crack, split, leak, warp, etc
You certainly are ahead of
me at this point, but you may seek the advice of the group about that exhaust
flange.
Please take this constructively.
Regards
Bill
Mason
__________ Information from ESET NOD32 Antivirus, version
of virus signature database 7873 (20130108) __________
The message was
checked by ESET NOD32 Antivirus.
http://www.eset.com
__________ Information from ESET NOD32 Antivirus, version of virus signature database 7873 (20130108) __________
The message was checked by ESET NOD32 Antivirus.
http://www.eset.com
|