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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. 
      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">
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      <div dir="ltr">That's because lucas never used UNF  - 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 5:28 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>
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