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One thing I should have mentioned, if any of you are ordering rocker
shafts for Vitesse or GT6 mark 1 (part #214562) have whoever you are
ordering from make sure that locating screw (part #104859) fits in.Â
There is at least one batch of rocker shafts that were tapped
incorrectly. Rimmer Bros and SpitBits know about the problem.
Roger
On 4/30/25 06:58, DAVID MASSEY wrote:
> Wikipedia has a fairly comprehensive page on Whitworth bolts
>
> https://en.wikipedia.org/wiki/British_Standard_Whitworth
>
> It looks like it might be a 7/32 which is between M5 and M6. Good
> luck finding one of those.
>
> Moss has them and Rimmer Brothers have them (part no 104859). I
> suspect there is one old bloke in the Lake District who still has the
> tooling and is making them in his retirement. Such was the nature of
> the British Auto Industry in the early years after the war.
>
> Seriously, I'll bet Rimmer contracted a large quantity (1,000?) be
> produced and sold half of them to Moss.
>
> But these are hex head rather than Pozidrive. I have only a passing
> familiarity with machine shop operations but I suspect that making the
> hex head version is much easier to make using an NC lathe and
> hexagonal feed stock. Making a Pozidrive (or even Philips) would
> require a stamping operation to form the head. If you insist on
> Pozidrive maybe you can arrange a swap with someone who has a
> Pozidrive screw and is willing to use the hex head.
>
> Dave
>
>
>
>
> On Tuesday, April 29, 2025 at 07:30:40 PM CDT, Roger Elliott
> <elliottr@rmi.net> wrote:
>
>
> Thanks Dave,
>
> I have a couple of the screws. (though mine have a Pozidriv head
> instead. The problem is I have 2 rocker shafts that were tapped for
> the wrong size. So, I am trying to figure out if I could tap them to
> the right size.
>
> What I said on a previous post was wrong. I went back to a hardware
> store and the locating screw slid right into the M6x1 tester with out
> having to turn it. So it is smaller than that. It would not go into
> a M5x.8
>
> I suspect you are right about it being a Whitworth.
>
> Thanks,
> Roger
>
> On 4/29/25 18:34, DAVID MASSEY wrote:
> Moss lists these as
>
> https://mossmotors.com/323-215-screw-shaft-locating
> <https://mossmotors.com/323-215-screw-shaft-locating>
>
> It may be whitworth or something.
>
> Dave
>
>
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<p>One thing I should have mentioned, if any of you are ordering
rocker shafts for Vitesse or GT6 mark 1 (part #214562) have
whoever you are ordering from make sure that locating screw (part
#104859) fits in. There is at least one batch of rocker shafts
that were tapped incorrectly. Rimmer Bros and SpitBits know about
the problem.<br>
</p>
<p>Roger<br>
</p>
<div class="moz-cite-prefix">On 4/30/25 06:58, DAVID MASSEY wrote:<br>
</div>
<blockquote type="cite"
cite="mid:467697119.3508541.1746014325551@mail.yahoo.com">
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<div class="ydp6b0d9f9byahoo-style-wrap"
style="font-family:Arial, Helvetica, sans-serif;font-size:16px;">
<div>
<div dir="ltr" data-setdir="false">Wikipedia has a fairly
comprehensive page on Whitworth bolts</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false"><a
href="https://en.wikipedia.org/wiki/British_Standard_Whitworth";
rel="nofollow" target="_blank" moz-do-not-send="true"
class="moz-txt-link-freetext">https://en.wikipedia.org/wiki/British_Standard_Whitworth</a></div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">It looks like it might be a
7/32 which is between M5 and M6. Good luck finding one of
those.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">Moss has them and Rimmer
Brothers have them (part no 104859). I suspect there is one
old bloke in the Lake District who still has the tooling and
is making them in his retirement. Such was the nature of
the British Auto Industry in the early years after the war.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">Seriously, I'll bet Rimmer
contracted a large quantity (1,000?) be produced and sold
half of them to Moss.</div>
<div dir="ltr" data-setdir="false"><br>
</div>
<div dir="ltr" data-setdir="false">But these are hex head
rather than Pozidrive. I have only a passing familiarity
with machine shop operations but I suspect that making the
hex head version is much easier to make using an NC lathe
and hexagonal feed stock. Making a Pozidrive (or even
Philips) would require a stamping operation to form the
head. If you insist on Pozidrive maybe you can arrange a
swap with someone who has a Pozidrive screw and is willing
to use the hex head.</div>
<div><br>
</div>
<div class="ydp6b0d9f9bsignature">
<div
style="color: black; font-style: normal; font-size-adjust: none; font-weight:
normal; font-stretch: normal; font-size: 12pt; line-height: normal;
font-family: Arial, Helvetica, sans-serif;">
<div
style="color: black; font-style: normal; font-size-adjust: none; font-weight:
normal; font-stretch: normal; font-size: 12pt; line-height: normal;
font-family: Arial, Helvetica, sans-serif;">
<div><font size="4">Dave <br>
</font></div>
<div><span
style="font-size:10.0pt;font-family:sans-serif;color:black;"><br>
</span></div>
<br>
</div>
</div>
</div>
</div>
<div><br>
</div>
<div><br>
</div>
</div>
<div id="ydp3e1984cdyahoo_quoted_6067833480"
class="ydp3e1984cdyahoo_quoted">
<div class="ydp3e1984cdyahoo-style-wrap"
style="font-family:Arial, Helvetica, sans-serif;font-size:16px;">
<div
style="font-family:'Helvetica Neue', Helvetica, Arial,
sans-serif;font-size:13px;color:#26282a;">
<div class="ydp3e1984cdquoted-text-header"> On Tuesday,
April 29, 2025 at 07:30:40 PM CDT, Roger Elliott
<a class="moz-txt-link-rfc2396E"
href="mailto:elliottr@rmi.net";><elliottr@rmi.net></a> wrote: </div>
</div>
<div
style="font-family:'Helvetica Neue', Helvetica, Arial,
sans-serif;font-size:13px;color:#26282a;border-left: 1px solid
#ccc;padding-left: 8px;margin: 0px 0px 0px 8px"
class="ydp3e1984cdinline_reply_quote_container"
data-split-quote-node="true">
<div><br>
</div>
<div><br>
</div>
<div>
<div id="ydp3e1984cdyiv2435572665">
<div>
<p>Thanks Dave,<br clear="none">
</p>
<p>I have a couple of the screws. (though mine have a
Pozidriv head instead. The problem is I have 2
rocker shafts that were tapped for the wrong size.
So, I am trying to figure out if I could tap them to
the right size.<br clear="none">
</p>
<p>What I said on a previous post was wrong. I went
back to a hardware store and the locating screw slid
right into the M6x1 tester with out having to turn
it. So it is smaller than that. It would not go
into a M5x.8<br clear="none">
</p>
<p>I suspect you are right about it being a Whitworth.<br
clear="none">
</p>
<p>Thanks,<br clear="none">
Roger<br clear="none">
</p>
<div id="ydp3e1984cdyiv2435572665yqt25310"
class="ydp3e1984cdyiv2435572665yqt1383488318">
<div class="ydp3e1984cdyiv2435572665moz-cite-prefix">On
4/29/25 18:34, DAVID MASSEY wrote:<br clear="none">
</div>
<blockquote type="cite"> </blockquote>
</div>
</div>
<div id="ydp3e1984cdyiv2435572665yqt97806"
class="ydp3e1984cdyiv2435572665yqt1383488318">
<div>
<div
style="font-family:Arial, Helvetica, sans-serif;font-size:16px;"
class="ydp3e1984cdyiv2435572665ydp87caafd6yahoo-style-wrap">
<div>
<div dir="ltr">Moss lists these as </div>
<div dir="ltr"><br clear="none">
</div>
<div dir="ltr"><a shape="rect"
href="https://mossmotors.com/323-215-screw-shaft-locating";
class="ydp3e1984cdyiv2435572665moz-txt-link-freetext moz-txt-link-freetext"
rel="nofollow" target="_blank"
moz-do-not-send="true">https://mossmotors.com/323-215-screw-shaft-locating</a></div>
<div dir="ltr"><br clear="none">
</div>
<div dir="ltr">It may be whitworth or something.</div>
<div><br clear="none">
</div>
<div
class="ydp3e1984cdyiv2435572665ydp87caafd6signature">
<div
style="color:black;font-style:normal;font-size-adjust:none;font-weight:normal;font-stretch:normal;font-size:12pt;line-height:normal;font-family:Arial,
Helvetica, sans-serif;">
<div
style="color:black;font-style:normal;font-size-adjust:none;font-weight:normal;font-stretch:normal;font-size:12pt;line-height:normal;font-family:Arial,
Helvetica, sans-serif;">
<div><font size="4">Dave <br clear="none">
</font></div>
<div><span
style="font-size:10.0pt;font-family:sans-serif;color:black;"><br
clear="none">
</span></div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
</div>
<div class="ydp3e1984cdyqt1383488318"
id="ydp3e1984cdyqt70469"><br clear="none">
</div>
</div>
</div>
</div>
</div>
</blockquote>
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