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Alan,
It's not listed on many Whitworth charts. 11/16 W is 1.200" AF. 1-5/32"
is 1.156". 0.044" difference. Seems a bit sloppy, but not a lot of
torque required.
Thanks!
Cheers,
Bob Haskell
Austin-Healey 3000 roadster registrar
On 9/3/26 16:27, Alan Seigrist wrote:
> That's because lucas never used UNFÂ - it will be a BA (for small
> stuff) or Whitworth spanner size. This size corresponds to an 11/16"
> Whitworth Spanner.
>
> On Tue, Sep 1, 2026 at 5:28â?¯PM Bob Haskell <rchaskell@earthlink.net>
> wrote:
>
> I bought a thin open ended wrench off of ebay and did some
> filing. Took
> the switch off easily.
>
> So the next question - what's the thread size? Looks to be
> 5/8"-13 - 55
> degrees. Anyone know for sure?
>
> Cheers,
>
> Bob Haskell
> Austin-Healey 3000 roadster registrar
>
>
> On 8/27/26 18:44, JSARCH wrote:
> > I I have uses this 1-3/16 wrench but I can't recall for certain
> because it has been many years since I have had to remove the
> switch. It is about 1/4" thick.
> >
> > Cheers,
> > John
> > '62 BT7
> >
> > -----Original Message-----
> > From: Healeys <healeys-bounces@autox.team.net> On Behalf Of Bob
> Haskell
> > Sent: Thursday, August 27, 2026 5:26 AM
> > To: Healey List <healeys@autox.team.net>
> > Subject: [Healeys] OD switch wrench
> >
> > Listers,
> >
> > Anyone know the wrench used to remove the 3rd/4th gear OD switch
> from the center shift gearbox. Appears to be 1-5/32" which is not
> a common size. Thinking of getting a thin 1-1/8" open end wrench
> and opening it up a bit.
> >
> > Cheers,
> >
> > Bob Haskell
> > Austin-Healey 3000 roadster registrar
> >
> > _______________________________________________
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> >
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> >
>
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<font face="monospace">Alan,<br>
<br>
It's not listed on many Whitworth charts. 11/16 W is 1.200" AF.Â
1-5/32" is 1.156". 0.044" difference. Seems a bit sloppy, but
not a lot of torque required.<br>
<br>
Thanks!<br>
<br>
Cheers,</font>
<pre class="moz-signature" cols="72">Bob Haskell
Austin-Healey 3000 roadster registrar</pre>
<br>
<div class="moz-cite-prefix">On 9/3/26 16:27, Alan Seigrist wrote:<br>
</div>
<blockquote type="cite"
cite="mid:CAFBXTk+N6HQF2FFPXSu=4-MiSRK17wU_m-eXav4drEaNb9D+SQ@mail.gmail.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div dir="ltr">That's because lucas never used UNFÂ - it will be a
BA (for small stuff) or Whitworth spanner size. This size
corresponds to an 11/16" Whitworth Spanner.</div>
<br>
<div class="gmail_quote gmail_quote_container">
<div dir="ltr" class="gmail_attr">On Tue, Sep 1, 2026 at 5:28â?¯PM
Bob Haskell <<a href="mailto:rchaskell@earthlink.net";
moz-do-not-send="true"
class="moz-txt-link-freetext">rchaskell@earthlink.net</a>>
wrote:<br>
</div>
<blockquote class="gmail_quote"
style="margin:0px 0px 0px 0.8ex;border-left:1px solid
rgb(204,204,204);padding-left:1ex">I
bought a thin open ended wrench off of ebay and did some
filing. Took <br>
the switch off easily.<br>
<br>
So the next question - what's the thread size? Looks to be
5/8"-13 - 55 <br>
degrees. Anyone know for sure?<br>
<br>
Cheers,<br>
<br>
Bob Haskell<br>
Austin-Healey 3000 roadster registrar<br>
<br>
<br>
On 8/27/26 18:44, JSARCH wrote:<br>
> I I have uses this 1-3/16 wrench but I can't recall for
certain because it has been many years since I have had to
remove the switch. It is about 1/4" thick.<br>
><br>
> Cheers,<br>
> John<br>
> '62 BT7<br>
><br>
> -----Original Message-----<br>
> From: Healeys <<a
href="mailto:healeys-bounces@autox.team.net"; target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">healeys-bounces@autox.team.net</a>>
On Behalf Of Bob Haskell<br>
> Sent: Thursday, August 27, 2026 5:26 AM<br>
> To: Healey List <<a
href="mailto:healeys@autox.team.net"; target="_blank"
moz-do-not-send="true"
class="moz-txt-link-freetext">healeys@autox.team.net</a>><br>
> Subject: [Healeys] OD switch wrench<br>
><br>
> Listers,<br>
><br>
> Anyone know the wrench used to remove the 3rd/4th gear OD
switch from the center shift gearbox. Appears to be 1-5/32"
which is not a common size. Thinking of getting a thin 1-1/8"
open end wrench and opening it up a bit.<br>
><br>
> Cheers,<br>
><br>
> Bob Haskell<br>
> Austin-Healey 3000 roadster registrar<br>
><br>
> _______________________________________________<br>
> Support Team.Net <a
href="http://www.team.net/donate.html"; rel="noreferrer"
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