Re: [Healeys] Speedo Drive Thread Size?

[warthodson--- via Healeys <healeys@autox.team.net>]

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Bob,If you had one available, how would you go about checking the thread an=
gle?=C2=A0Gary Hodson
-----Original Message-----
From: Bob Haskell via Healeys <healeys@autox.team.net>
To: Harold Manifold <manifold@telus.net>; john harper <ah100tech@gmail.com>=
; Hank Leach <gradea1@charter.net>
Cc: healeys@autox.team.net <healeys@autox.team.net>
Sent: Sun, Aug 8, 2021 7:14 pm
Subject: Re: [Healeys] Speedo Drive Thread Size?

Harold,

As has been pointed out in separate emails, there are two standards that=20
include 3/4" dia with 26 TPI. British Standard Cycle with thread angle=20
of 60 degrees and British Standard Brass with a thread angle of 55=20
degrees.=C2=A0 Since the speedo drive is brass I would suspect the latter,=
=20
but I don't have one handy to check.

Cheers,

Bob Haskell
Austin Healey 3000 BN7/BT7 registrar



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<div style="color:black;font:12pt Comic Sans MS, sans-serif;">Bob,

<div>If you had one available, how would you go about checking the thread 
angle?&nbsp;</div>



<div>Gary Hodson</div>



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<div style="font-family:arial, helvetica;font-size:10pt;color:black;"><font 
size="2">-----Original Message-----<br clear="none">
From: Bob Haskell via Healeys &lt;healeys@autox.team.net&gt;<br clear="none">
To: Harold Manifold &lt;manifold@telus.net&gt;; john harper 
&lt;ah100tech@gmail.com&gt;; Hank Leach &lt;gradea1@charter.net&gt;<br 
clear="none">
Cc: healeys@autox.team.net &lt;healeys@autox.team.net&gt;<br clear="none">
Sent: Sun, Aug 8, 2021 7:14 pm<br clear="none">
Subject: Re: [Healeys] Speedo Drive Thread Size?<br clear="none">
<br clear="none">

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<div dir="ltr">Harold,<br clear="none"><br clear="none">As has been pointed out 
in separate emails, there are two standards that <br clear="none">include 3/4" 
dia with 26 TPI. British Standard Cycle with thread angle <br clear="none">of 
60 degrees and British Standard Brass with a thread angle of 55 <br 
clear="none">degrees.&nbsp; Since the speedo drive is brass I would suspect the 
latter, <br clear="none">but I don't have one handy to check.<br 
clear="none"><br clear="none">Cheers,<br clear="none"><br clear="none">Bob 
Haskell<br clear="none">Austin Healey 3000 BN7/BT7 registrar<br 
clear="none"><br clear="none">
<div class="yiv8655725873yqt9871142070" id="yiv8655725873yqtfd26944"><br 
clear="none"></div>

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