Doug, I have seen sections of pipe that looked like that may be flexible in an
auto parts store. Only thing is they looked pretty long (about 6 feet). Never
looked to see if they have shorter section though. They did have the correct
"bellows" type shape. Probably in mild steel though. I'll look next time I am
in.
When I fit a new exhaust and header I would like to make sure that I don't get
cracks as well.
I would have thought that a muffler shop would have something universal that
they use in various diameters.
Alan
Original Message:
-----------------
From: Douglas Braun & Nadia Papakonstantinou dougnad@bellatlantic.net
Date: Thu, 06 Jul 2000 11:16:08 -0400
Subject: Re: Weld Breaks on SS Headers
I wish I could find a decent flex-joint that I could add to
my exhaust. Any leads, anyone? At one point, I had
a foot-long section of that cheesy spiral-wound flexible pipe
between the header and the main pipe, but it fell apart after
a couple of years.
If you look at the geometry of headers and how they attach to
the engine, you will see that a rigid header+pipe setup
can apply very high forces to the flanges, studs, etc...
Doug Braun
'72 Spit
At 10:31 AM 7/6/00 -0400, Teller.John@orbital.com wrote:
>My miserable 1985 Buick Somerset with a 2.5L 4 (completely unbalanced mind you)
>came from the factory with a welded together stainless steel manifold. After
>175K miles, it is doing just fine.
>
>The manifold is connected to the rest of the exhaust system through a flexible
>coupling consisting of a flange on the cat pipe and another on the manifold
>with
>a "doughnut" between them, all held together by two spring loaded bolts.
>Perhaps the flexible coupling is what keeps the stiffer stainless from breaking
>its welds.
>
>Most of the vehicles in the Import Car Tuning magazines at the grocery store
>use
>a fancy flexible coupling between their SS headers and the rest of the exhaust
>system. Probably for that very reason!
>
>--- JST
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