[Healeys] 100 carb balance pipe

[Bob Haskell]

Thanks for the info.  The ones that I took off the manifold were brass 
threaded rod and the threads had stripped under the nuts.  I made some 
by cutting the heads off steel cheese head screws. It looks like British 
Fastener's may have the stud - 
http://britishfasteners.com/studs/bsf-bsf-studs/bsf-cei-1-4-x-1-long-stud-26-26-tpi-36.html

Cheers,

Bob Haskell
AHCA 3000 Mk I registrar
http://www.ciahc.org/registry_3000mk1.php

On 04/24/2015 05:37 PM, Michael wrote:
> Curt is correct...what's new...
> BSF both ends.
>
> Michael S
> BN1 #174
> ------------------------------------------------------------------------
> From: Curtis Arndt <mailto:cnaarndt at gmail.com>
> Sent: ‎24/‎04/‎2015 2:23 p.m.
> To: Bob Haskell <mailto:rchaskell at earthlink.net>
> Cc: Healey List <mailto:healeys at autox.team.net>
> Subject: Re: [Healeys] 100 carb balance pipe
>
> Hi All,
>
> I believe (almost certain) that the 1/4" studs on the manifold are BSF
> on BOTH ends.  IF they were coarse threaded into the aluminum they would
> be BSW, to match the BSF Whitworth threads on the other end.
>
> Cheers,
>
> Curt
>
> On Thu, Apr 23, 2015 at 4:09 AM, Bob Haskell <rchaskell at earthlink.net
> <mailto:rchaskell at earthlink.net>> wrote:
>
>     Alan,
>
>     The threads are definitely BSF in these manifolds, but you're right
>     - coarse thread is usually the case in aluminum.
>
>     Thanks,
>
>     Bob Haskell
>     AHCA 3000 Mk I registrar
>     http://www.ciahc.org/registry_3000mk1.php
>
>     On 04/23/2015 06:21 AM, Alan Seigrist wrote:
>
>         Bob -
>
>           From memory I believe they have a section that isn't threaded
>         in the
>         middle, with coarse thread to go in the manifold and fine thread
>         for the
>         nut.
>
>         Then again I probably have no clue what I'm talking about.
>
>         Alan
>
>         On Thu, Apr 23, 2015 at 6:01 PM, Bob Haskell
>         <rchaskell at earthlink.net <mailto:rchaskell at earthlink.net>
>         <mailto:rchaskell at earthlink.net
>         <mailto:rchaskell at earthlink.net>>> wrote:
>
>              Listers,
>
>              The balance pipe is attached to each intake manifold with
>         two studs.
>              Are the studs just threaded rod, or is there a non-threaded
>         section in
>              the middle?  Assume that they're steel and overall length
>         an inch.
>              Threads are 1/4-26 (BSF/BSC).
>
>              Cheers,
>
>              Bob Haskell
>              AHCA 3000 Mk I registrar
>         http://www.ciahc.org/registry_3000mk1.php
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