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Re: Weld Breaks on SS Headers

To: <alemen@pop.ftconnect.com>, <spitfires@autox.team.net>
Subject: Re: Weld Breaks on SS Headers
From: "wizardz" <wizardz@maxinter.net>
Date: Thu, 6 Jul 2000 13:07:34 -0400
APT sells ball joint exhaust pipe sections.
They work great where you have a moving engine
and a rigidly mounted exhaust pipe.
The trick is proper location.
http://www.aptfast.com/APT_Parts/Triumph_Parts/t_Exhaust_Headers_Systems.htm

and a photo of one at
http://www.aptfast.com/Images_Parts/Exhaust/A_Exhaust/SS_Ball_Joints.jpg

...don't ask me about seal quality... I've never had one in my hands.

Paul Tegler  wizardz@toad.net   http://www.teglerizer.com (new layout)


-----Original Message-----
From: alemen@pop.ftconnect.com <alemen@pop.ftconnect.com>
To: spitfires@autox.team.net <spitfires@autox.team.net>
Date: Thursday, July 06, 2000 11:53 AM
Subject: Re: Weld Breaks on SS Headers



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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