[DeTomaso] Hall Header Donuts

[Mike Drew]

Chuck,

Yes, the factory headers came with a donut-supporting pipe. About the only good thing about them!

Mike

Sent from my iPhone

On Apr 23, 2017, at 4:32, "Charles Engles" <cengles at cox.net> wrote:

>   Dear Craig,
> 
> 
> 
>                         I *like* it!      ......and I just happen to know
>   an old-school muffler guy who could do that modification.   Most
>   excellent.
> 
> 
> 
>                                                Warmest regards,  Chuck
>   Engles
> 
> 
> 
> 
>   From: Craig Campman [mailto:ccampman at cox.net]
>   Sent: Saturday, April 22, 2017 12:39 PM
>   To: cengles at cox.net; jderyke at aol.com; bill at incendium.com
>   Cc: detomaso at server.detomasolist.com
>   Subject: Re: Hall Header Donuts
> 
> 
>   Hi Chuck,
> 
> 
>   I also have the Hall headers and muffler combo and have fought for
>   years with the donut gaskets squeezing out and causing exhaust leaks.
>   Last year while at a local muffler shop known for great work, the owner
>   heard my tale of woe and created two short tubes to keep the donut
>   centered. He cut two short lengths of tube with an OD to fit in the
>   donut, and then used his machine to adjust the diameter of half the
>   length of tube so it would slide into the pipe that goes from the
>   header flange to muffler. Once inserted into the pipe, the donut goes
>   on and the assemble is bolted to the header with the original Hall
>   flange hardware.
> 
>   I have been running this setup for the past year and the donuts stay in
>   place. I have attached four photos showing the small tube and
>   application. Although it reduces the header flange cross section a bit,
>   the tradeoff of not having constant exhaust leaks at the donut is worth
>   the price of admission to me.
> 
> 
>   Regards,
> 
>   Craig Campman
> 
>   Red '73  #5303
> 
> 
>   [cid:image001.jpg at 01D2BB75.3B39D7E0]
>   [cid:image002.jpg at 01D2BB75.3B39D7E0]
>   [cid:image003.jpg at 01D2BB75.3B39D7E0]
>   [cid:image004.jpg at 01D2BB75.3B39D7E0]
> 
> 
>   ------------------------------
>   Message: 6
>   Date: Fri, 21 Apr 2017 18:50:52 -0500
>   From: "Charles Engles" <[1]cengles at cox.net>
>   To: <[2]jderyke at aol.com>, <[3]bill at incendium.com>,
>   <[4]byrdjf at embarqmail.com>,
>               <[5]detomaso at detomasolist.com>
>   Subject: Re: [DeTomaso] Techno question: setting the engine brace bar
>               properly
>   Message-ID: <[6]002701d2bafa$1cc5c880$56515980$@cox.net>
>   Content-Type: text/plain; charset="utf-8"
>   Dear Jack,
>                    I understand.   These seasoned and vintage (!) donut
>   exhaust gaskets tolerated mating the Hall Big Bores to the stock
>   Pantera/ANSA exhaust for about fifteen years.  They have survived me
>   dropping them a few times whilst installing them with the HBB exhausts.
>     They seem robust.  I shall watch them with cat like vigilance.
>                               Warmest regards,  Chuck Engles
>   From: [7]jderyke at aol.com [[8]mailto:jderyke at aol.com]
>   Sent: Friday, April 21, 2017 1:28 PM
>   To: [9]cengles at cox.net; [10]bill at incendium.com;
>   [11]byrdjf at embarqmail.com; [12]detomaso at detomasolist.com
>   Subject: Re: [DeTomaso] Techno question: setting the engine brace bar
>   properly
>   Chuck, you can try the doughnuts. But when I ran a Hall big-bore set a
>   decade ago, the leverage from the mufflers against the header flanges
>   was such that the doughnuts fractured, then pounded out in a few
>   thousand miles. I substituted flat gaskets, then sold the mufflers &
>   connecting pipes. Good luck- J Deryke
> 
> References
> 
>   1. mailto:cengles at cox.net
>   2. mailto:jderyke at aol.com
>   3. mailto:bill at incendium.com
>   4. mailto:byrdjf at embarqmail.com
>   5. mailto:detomaso at detomasolist.com
>   6. mailto:002701d2bafa$1cc5c880$56515980$@cox.net
>   7. mailto:jderyke at aol.com
>   8. mailto:jderyke at aol.com
>   9. mailto:cengles at cox.net
>  10. mailto:bill at incendium.com
>  11. mailto:byrdjf at embarqmail.com
>  12. mailto:detomaso at detomasolist.com
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