[Healeys] 100 carb balance pipe

[Michael]

Curt is correct...what's new...
BSF both ends.

Michael S
BN1 #174

-----Original Message-----
From: "Curtis Arndt" <cnaarndt at gmail.com>
Sent: ‎24/‎04/‎2015 2:23 p.m.
To: "Bob Haskell" <rchaskell at earthlink.net>
Cc: "Healey List" <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> 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>> 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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