Subject: Re: [TR] Rocker feed screw.

From: Roger Elliott <[email-masked]>
Date: Wed, 30 Apr 2025 17:33:48 -0500

Thanks John.
I am trying to look at metric.  It doesn't seem to be a size that is 
commonly stocked at hardware stores around here.

Roger

On 4/30/25 16:55, John Macartney wrote:
> I have my doubts about the offending item having Whitworth ancestry. While I’ve long been a Whitworth advocate and enthusiast (for purely patriotic reasons) I think it might be worth going down a metric route. There was a time when the factory briefly reverted to metric hardware that was market specific for European build. Needless to say, certain bits of hardware went where they shouldn’t (or inadvertently wound up there). Might this be a possible avenue to explore? Evaluate metric fine and coarse pitch threads.
>
> Jonmac
> ** [email-masked] **
>
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archive
>
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From: Don Hiscock <[email-masked]>
Date: Wed, 30 Apr 2025 16:34:13 -0600

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I'm not aware of any Whitworth threads installed by S-T (at least on a
sidescreen car).  There may be some Whitworth and BA threads on bought-in
components, like SU carbs, Smiths, and possibly some Lucas.  But I'll be
shocked sh*tless to learn legit Withworth threads were used in a S-T engine=
.

Jonmac, I'd never heard that metric and inch fasteners were used on the
line at the same time depending on the end market for the vehicle.  That's
a fascinating bit of trivia, and one of the reasons we love having you
here!  What time period are you talking about for that?  Maybe 1970s?

On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM John Macartney <johnbmacartney@gmx.=
com>
wrote:

> I have my doubts about the offending item having Whitworth ancestry. Whil=
e
> I=E2=80=99ve long been a Whitworth advocate and enthusiast (for purely pa=
triotic
> reasons) I think it might be worth going down a metric route. There was a
> time when the factory briefly reverted to metric hardware that was market
> specific for European build. Needless to say, certain bits of hardware we=
nt
> where they shouldn=E2=80=99t (or inadvertently wound up there). Might thi=
s be a
> possible avenue to explore? Evaluate metric fine and coarse pitch threads=
.
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/triumphs/[email-masked]
>

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">I&#=
39;m not aware of any Whitworth threads installed by S-T (at least on a sid=
escreen car).=C2=A0 There may be some Whitworth and BA threads on bought-in=
 components, like SU carbs, Smiths, and possibly some Lucas.=C2=A0 But I&#3=
9;ll be shocked sh*tless to learn legit Withworth threads=C2=A0were used in=
 a S-T engine.</div><div class=3D"gmail_default" style=3D"font-size:small">=
<br></div><div class=3D"gmail_default" style=3D"font-size:small">Jonmac, I&=
#39;d never heard that metric and inch fasteners=C2=A0were used on the line=
 at the same time depending on the end market for the vehicle.=C2=A0 That&#=
39;s a fascinating bit of trivia, and one of the reasons we love having you=
 here!=C2=A0 What time period are you talking about for that?=C2=A0 Maybe 1=
970s?</div></div><br><div class=3D"gmail_quote gmail_quote_container"><div =
dir=3D"ltr" class=3D"gmail_attr">On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM Jo=
hn Macartney &lt;<a href=3D"mailto:[email-masked]">johnbmacartney@g=
mx.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"m=
argin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">I have my doubts about the offending item having Whitworth ancestry. =
While I=E2=80=99ve long been a Whitworth advocate and enthusiast (for purel=
y patriotic reasons) I think it might be worth going down a metric route. T=
here was a time when the factory briefly reverted to metric hardware that w=
as market specific for European build. Needless to say, certain bits of har=
dware went where they shouldn=E2=80=99t (or inadvertently wound up there). =
Might this be a possible avenue to explore? Evaluate metric fine and coarse=
 pitch threads.<br>
<br>
Jonmac<br>
** <a href=3D"mailto:[email-masked]" target=3D"_blank">triumphs@au=
tox.team.net</a> **<br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs" rel=3D"noreferr=
er" target=3D"_blank">http://www.team.net/pipermail/triumphs</a>=C2=A0 <a h=
ref=3D"http://www.team.net/archive" rel=3D"noreferrer" target=3D"_blank">ht=
tp://www.team.net/archive</a><br>
<br>
hs/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox=
.team.net/mailman/options/triumphs/[email-masked]</a><br>
</blockquote></div>

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From: John Macartney <[email-masked]>
Date: Thu, 1 May 2025 00:19:52 +0100

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Don,

It came about as I recall sometime in the late 60s when I was working for th=
e company in London. What started it (IIRC) was when there was an engineerin=
g change bulletin brought about by Sweden requiring cadmium plated fasteners=
 instead of zinc, or t=E2=80=99other way about on all cars for Sweden. That a=
llegedly precipitated the Belgian assembly plant seeking to use metric faste=
ners in certain areas, though not all, in their build sequencing. Coventry s=
till built quite a lot of components that went into the kits for Belgium and=
 for a while, most if not all cars going to Sweden were built in Belgium. La=
ter on, Sweden destined cars reverted to UK build and I think it all died a v=
ery quick death and we reverted to imperial standard, apart from the cadmium=
 and zinc issue which remained in place. However, it wasn=E2=80=99t plain sa=
iling all the way in the Coventry and London service departments because the=
 fitters started moaning about not having appropriate sized sockets and span=
ner=E2=80=99s for oddball UK home market cars that found their way in with s=
trange metric hardware. All in all, one humongous cock-up all round and I do=
n=E2=80=99t think anyone was sure who had suggested it all in the first plac=
e. Probably some acne ridden long-haired lout just out of university with a D=
ivinity degree and who wanted to make his mark and change the world. Quite l=
ikely the same person was later moved into Purchasing and decided to change t=
he metallurgical spec for Stag cylinder heads - and that=E2=80=99s somewhere=
 no-one needs to go, EVER!

Jonmac

> On 30 Apr 2025, at 23:34, Don Hiscock <[email-masked]> wrote:
>=20
> I'm not aware of any Whitworth threads installed by S-T (at least on a sid=
escreen car).  There may be some Whitworth and BA threads on bought-in compo=
nents, like SU carbs, Smiths, and possibly some Lucas.  But I'll be shocked s=
h*tless to learn legit Withworth threads were used in a S-T engine.
>=20
> Jonmac, I'd never heard that metric and inch fasteners were used on the li=
ne at the same time depending on the end market for the vehicle.  That's a f=
ascinating bit of trivia, and one of the reasons we love having you here!  W=
hat time period are you talking about for that?  Maybe 1970s?
>=20
>> On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM John Macartney <johnbmacartney@gm=
>> I have my doubts about the offending item having Whitworth ancestry. Whil=
e I=E2=80=99ve long been a Whitworth advocate and enthusiast (for purely pat=
riotic reasons) I think it might be worth going down a metric route. There w=
as a time when the factory briefly reverted to metric hardware that was mark=
et specific for European build. Needless to say, certain bits of hardware we=
nt where they shouldn=E2=80=99t (or inadvertently wound up there). Might thi=
s be a possible avenue to explore? Evaluate metric fine and coarse pitch thr=
eads.
>>=20
>>=20
>> Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/arch=
ive
>>=20
>> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/don.hi=
[email-masked]

--Apple-Mail-DCCE55C9-D130-4FA7-9085-523965F8B8E7
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<html><head><meta http-equiv=3D"content-type" content=3D"text/html; charset=3D=
utf-8"></head><body dir=3D"auto"><div dir=3D"ltr"></div><div dir=3D"ltr">Don=
,</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">It came about as I recall=
 sometime in the late 60s when I was working for the company in London. What=
 started it (IIRC) was when there was an engineering change bulletin brought=
 about by Sweden requiring cadmium plated fasteners instead of zinc, or t=E2=
=80=99other way about on all cars for Sweden. That allegedly precipitated th=
e Belgian assembly plant seeking to use metric fasteners in certain areas, t=
hough not all, in their build sequencing. Coventry still built quite a lot o=
f components that went into the kits for Belgium and for a while, most if no=
t all cars going to Sweden were built in Belgium. Later on, Sweden destined c=
ars reverted to UK build and I think it all died a very quick death and we r=
everted to imperial standard, apart from the cadmium and zinc issue which re=
mained in place. However, it wasn=E2=80=99t plain sailing all the way in the=
 Coventry and London service departments because the fitters started moaning=
 about not having appropriate sized sockets and spanner=E2=80=99s for oddbal=
l UK home market cars that found their way in with strange metric hardware. A=
ll in all, one humongous cock-up all round and I don=E2=80=99t think anyone w=
as sure who had suggested it all in the first place. Probably some acne ridd=
en long-haired lout just out of university with a Divinity degree and who wa=
nted to make his mark and change the world. Quite likely the same person was=
 later moved into Purchasing and decided to change the metallurgical spec fo=
r Stag cylinder heads - and that=E2=80=99s somewhere no-one needs to go, EVE=
R!</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">Jonmac</div><div dir=3D"=
ltr"><br>On 30 Apr 2025, at 23:34, Don Hiscock &lt;<a href=3D"mailto:don.his=
[email-masked]">[email-masked]</a>&gt; wrote:<br><br></div><blockquot=
e type=3D"cite"><div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_defaul=
t" style=3D"font-size:small">I'm not aware of any Whitworth threads installe=
d by S-T (at least on a sidescreen car).&nbsp; There may be some Whitworth a=
nd BA threads on bought-in components, like SU carbs, Smiths, and possibly s=
ome Lucas.&nbsp; But I'll be shocked sh*tless to learn legit Withworth threa=
ds&nbsp;were used in a S-T engine.</div><div class=3D"gmail_default" style=3D=
"font-size:small"><br></div><div class=3D"gmail_default" style=3D"font-size:=
small">Jonmac, I'd never heard that metric and inch fasteners&nbsp;were used=
 on the line at the same time depending on the end market for the vehicle.&n=
bsp; That's a fascinating bit of trivia, and one of the reasons we love havi=
ng you here!&nbsp; What time period are you talking about for that?&nbsp; Ma=
ybe 1970s?</div></div><br><div class=3D"gmail_quote gmail_quote_container"><=
div dir=3D"ltr" class=3D"gmail_attr">On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM=
 John Macartney &lt;<a href=3D"mailto:[email-masked]">johnbmacartney=
@gmx.com</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"=
margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left=
:1ex">I have my doubts about the offending item having Whitworth ancestry. W=
hile I=E2=80=99ve long been a Whitworth advocate and enthusiast (for purely p=
atriotic reasons) I think it might be worth going down a metric route. There=
 was a time when the factory briefly reverted to metric hardware that was ma=
rket specific for European build. Needless to say, certain bits of hardware w=
ent where they shouldn=E2=80=99t (or inadvertently wound up there). Might th=
is be a possible avenue to explore? Evaluate metric fine and coarse pitch th=
reads.<br>
<br>
Jonmac<br>
** <a href=3D"mailto:[email-masked]" target=3D"_blank">triumphs@aut=
ox.team.net</a> **<br>
<br>
t=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs" rel=3D"noreferre=
r" target=3D"_blank">http://www.team.net/pipermail/triumphs</a>&nbsp; <a hre=
f=3D"http://www.team.net/archive" rel=3D"noreferrer" target=3D"_blank">http:=
//www.team.net/archive</a><br>
<br>
s/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox.t=
eam.net/mailman/options/triumphs/[email-masked]</a><br>
</blockquote></div>
</div></blockquote></body></html>=

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From: Don Hiscock <[email-masked]>
Date: Wed, 30 Apr 2025 17:26:19 -0600

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Thanks, Jonmac.  Most likely Sweden mandated a move to zinc and away from
cadmium.  Cadmium plating has some health and environmental risks that are
lessened with zinc plating.

On Wed, Apr 30, 2025 at 5:20=E2=80=AFPM John Macartney <johnbmacartney@gmx.=
com>
wrote:

> Don,
>
> It came about as I recall sometime in the late 60s when I was working for
> the company in London. What started it (IIRC) was when there was an
> engineering change bulletin brought about by Sweden requiring cadmium
> plated fasteners instead of zinc, or t=E2=80=99other way about on all car=
s for
> Sweden. That allegedly precipitated the Belgian assembly plant seeking to
> use metric fasteners in certain areas, though not all, in their build
> sequencing. Coventry still built quite a lot of components that went into
> the kits for Belgium and for a while, most if not all cars going to Swede=
n
> were built in Belgium. Later on, Sweden destined cars reverted to UK buil=
d
> and I think it all died a very quick death and we reverted to imperial
> standard, apart from the cadmium and zinc issue which remained in place.
> However, it wasn=E2=80=99t plain sailing all the way in the Coventry and =
London
> service departments because the fitters started moaning about not having
> appropriate sized sockets and spanner=E2=80=99s for oddball UK home marke=
t cars
> that found their way in with strange metric hardware. All in all, one
> humongous cock-up all round and I don=E2=80=99t think anyone was sure who=
 had
> suggested it all in the first place. Probably some acne ridden long-haire=
d
> lout just out of university with a Divinity degree and who wanted to make
> his mark and change the world. Quite likely the same person was later mov=
ed
> into Purchasing and decided to change the metallurgical spec for Stag
> cylinder heads - and that=E2=80=99s somewhere no-one needs to go, EVER!
>
> Jonmac
>
> shocked sh*tless to learn legit Withworth threads were used in a S-T engi=
ne.
> line at the same time depending on the end market for the vehicle.  That'=
s
> On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM John Macartney <johnbmacartney@gm=
x.com>
> wrote:
>
>> I have my doubts about the offending item having Whitworth ancestry.
>> While I=E2=80=99ve long been a Whitworth advocate and enthusiast (for pu=
rely
>> patriotic reasons) I think it might be worth going down a metric route.
>> There was a time when the factory briefly reverted to metric hardware th=
at
>> was market specific for European build. Needless to say, certain bits of
>> hardware went where they shouldn=E2=80=99t (or inadvertently wound up th=
ere). Might
>> this be a possible avenue to explore? Evaluate metric fine and coarse pi=
tch
>> threads.

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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">Tha=
nks, Jonmac.=C2=A0 Most likely Sweden mandated a move to zinc and away from=
 cadmium.=C2=A0 Cadmium plating has some health and environmental risks tha=
t are lessened with zinc plating.</div></div><br><div class=3D"gmail_quote =
gmail_quote_container"><div dir=3D"ltr" class=3D"gmail_attr">On Wed, Apr 30=
, 2025 at 5:20=E2=80=AFPM John Macartney &lt;<a href=3D"mailto:johnbmacartn=
[email-masked]">[email-masked]</a>&gt; wrote:<br></div><blockquote clas=
s=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid r=
gb(204,204,204);padding-left:1ex"><div dir=3D"auto"><div dir=3D"ltr"></div>=
<div dir=3D"ltr">Don,</div><div dir=3D"ltr"><br></div><div dir=3D"ltr">It c=
ame about as I recall sometime in the late 60s when I was working for the c=
ompany in London. What started it (IIRC) was when there was an engineering =
change bulletin brought about by Sweden requiring cadmium plated fasteners =
instead of zinc, or t=E2=80=99other way about on all cars for Sweden. That =
allegedly precipitated the Belgian assembly plant seeking to use metric fas=
teners in certain areas, though not all, in their build sequencing. Coventr=
y still built quite a lot of components that went into the kits for Belgium=
 and for a while, most if not all cars going to Sweden were built in Belgiu=
m. Later on, Sweden destined cars reverted to UK build and I think it all d=
ied a very quick death and we reverted to imperial standard, apart from the=
 cadmium and zinc issue which remained in place. However, it wasn=E2=80=99t=
 plain sailing all the way in the Coventry and London service departments b=
ecause the fitters started moaning about not having appropriate sized socke=
ts and spanner=E2=80=99s for oddball UK home market cars that found their w=
ay in with strange metric hardware. All in all, one humongous cock-up all r=
ound and I don=E2=80=99t think anyone was sure who had suggested it all in =
the first place. Probably some acne ridden long-haired lout just out of uni=
versity with a Divinity degree and who wanted to make his mark and change t=
he world. Quite likely the same person was later moved into Purchasing and =
decided to change the metallurgical spec for Stag cylinder heads - and that=
=E2=80=99s somewhere no-one needs to go, EVER!</div><div dir=3D"ltr"><br></=
div><div dir=3D"ltr">Jonmac</div><div dir=3D"ltr"><br>On 30 Apr 2025, at 23=
:34, Don Hiscock &lt;<a href=3D"mailto:[email-masked]" target=3D"_bl=
ank">[email-masked]</a>&gt; wrote:<br><br></div><blockquote type=3D"=
cite"><div dir=3D"ltr"><div dir=3D"ltr"><div class=3D"gmail_default" style=
=3D"font-size:small">I&#39;m not aware of any Whitworth threads installed b=
y S-T (at least on a sidescreen car).=C2=A0 There may be some Whitworth and=
 BA threads on bought-in components, like SU carbs, Smiths, and possibly so=
me Lucas.=C2=A0 But I&#39;ll be shocked sh*tless to learn legit Withworth t=
hreads=C2=A0were used in a S-T engine.</div><div class=3D"gmail_default" st=
yle=3D"font-size:small"><br></div><div class=3D"gmail_default" style=3D"fon=
t-size:small">Jonmac, I&#39;d never heard that metric and inch fasteners=C2=
=A0were used on the line at the same time depending on the end market for t=
he vehicle.=C2=A0 That&#39;s a fascinating bit of trivia, and one of the re=
asons we love having you here!=C2=A0 What time period are you talking about=
 for that?=C2=A0 Maybe 1970s?</div></div><br><div class=3D"gmail_quote"><di=
v dir=3D"ltr" class=3D"gmail_attr">On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM =
John Macartney &lt;<a href=3D"mailto:[email-masked]" target=3D"_bla=
nk">[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gma=
il_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,2=
04,204);padding-left:1ex">I have my doubts about the offending item having =
Whitworth ancestry. While I=E2=80=99ve long been a Whitworth advocate and e=
nthusiast (for purely patriotic reasons) I think it might be worth going do=
wn a metric route. There was a time when the factory briefly reverted to me=
tric hardware that was market specific for European build. Needless to say,=
 certain bits of hardware went where they shouldn=E2=80=99t (or inadvertent=
ly wound up there). Might this be a possible avenue to explore? Evaluate me=
tric fine and coarse pitch threads.<br>
<br>
Jonmac<br>
** <a href=3D"mailto:[email-masked]" target=3D"_blank">triumphs@au=
tox.team.net</a> **<br>
<br>
et=3D"_blank">http://www.team.net/donate.html</a><br>
Archive: <a href=3D"http://www.team.net/pipermail/triumphs" rel=3D"noreferr=
er" target=3D"_blank">http://www.team.net/pipermail/triumphs</a>=C2=A0 <a h=
ref=3D"http://www.team.net/archive" rel=3D"noreferrer" target=3D"_blank">ht=
tp://www.team.net/archive</a><br>
<br>
hs/[email-masked]" rel=3D"noreferrer" target=3D"_blank">http://autox=
.team.net/mailman/options/triumphs/[email-masked]</a><br>
</blockquote></div>
</div></blockquote></div></blockquote></div>

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From: dave northrup <[email-masked]>
Date: Thu, 1 May 2025 01:31:45 +0000

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From: DAVID MASSEY <[email-masked]>
Date: Thu, 1 May 2025 01:35:14 +0000 (UTC)

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There are Whitworth fasteners used on the TR3 windshield.=C2=A0 I bought a =
set of Whitworth taps and dies when I restored my windscreen for that reaso=
n.=C2=A0 But, no, that is not the engine.
Dave=20

=20

    On Wednesday, April 30, 2025 at 05:34:25 PM CDT, Don Hiscock <don.hisco=
[email-masked]> wrote:  =20

 I'm not aware of any Whitworth threads installed by S-T (at least on a sid=
escreen car).=C2=A0 There may be some Whitworth and BA threads on bought-in=
 components, like SU carbs, Smiths, and possibly some Lucas.=C2=A0 But I'll=
 be shocked sh*tless to learn legit Withworth threads=C2=A0were used in a S=
-T engine.
Jonmac, I'd never heard that metric and inch fasteners=C2=A0were used on th=
e line at the same time depending on the end market for the vehicle.=C2=A0 =
That's a fascinating bit of trivia, and one of the reasons we love having y=
ou here!=C2=A0 What time period are you talking about for that?=C2=A0 Maybe=
 1970s?
On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM John Macartney <johnbmacartney@gmx.=
com> wrote:

I have my doubts about the offending item having Whitworth ancestry. While =
I=E2=80=99ve long been a Whitworth advocate and enthusiast (for purely patr=
iotic reasons) I think it might be worth going down a metric route. There w=
as a time when the factory briefly reverted to metric hardware that was mar=
ket specific for European build. Needless to say, certain bits of hardware =
went where they shouldn=E2=80=99t (or inadvertently wound up there). Might =
this be a possible avenue to explore? Evaluate metric fine and coarse pitch=
 threads.

Jonmac

Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net/a=
rchive

[email-masked]

 =20
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<html><head></head><body><div class=3D"ydp2a80b2b4yahoo-style-wrap" style=
=3D"font-family:Arial, Helvetica, sans-serif;font-size:16px;"><div><div dir=
=3D"ltr" data-setdir=3D"false">There are Whitworth fasteners used on the TR=
3 windshield.&nbsp; I bought a set of Whitworth taps and dies when I restor=
ed my windscreen for that reason.&nbsp; But, no, that is not the engine.</d=
iv><div><br></div><div class=3D"ydp2a80b2b4signature"><div style=3D"color: =
black; font-style: normal; font-size-adjust: none; font-weight: normal; fon=
t-stretch: normal; font-size: 12pt; line-height: normal; font-family: Arial=
, Helvetica, sans-serif;"><div style=3D"color: black; font-style: normal; f=
ont-size-adjust: none; font-weight: normal; font-stretch: normal; font-size=
: 12pt; line-height: normal; font-family: Arial, Helvetica, sans-serif;"><d=
iv><font size=3D"4">Dave <br></font></div><div><span style=3D"font-size:10.=
0pt;font-family:sans-serif;color:black;"><br></span></div><br></div></div><=
/div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"ydpd5c7d075yahoo_quoted_6714698056" class=3D"ydpd5=
c7d075yahoo_quoted"><div class=3D"ydpd5c7d075yahoo-style-wrap" style=3D"fon=
t-family:Arial, Helvetica, sans-serif;font-size:16px;">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div class=3D"ydpd5c7d075quoted-text-header">
                        On Wednesday, April 30, 2025 at 05:34:25 PM CDT, Do=
n Hiscock &lt;[email-masked]&gt; wrote:
                    </div>
                </div><div style=3D"font-family:'Helvetica Neue', Helvetica=
, Arial, sans-serif;font-size:13px;color:#26282a;border-left: 1px solid #cc=
c;padding-left: 8px;margin: 0px 0px 0px 8px" class=3D"ydpd5c7d075inline_rep=
ly_quote_container" data-split-quote-node=3D"true">
                <div><br></div><div><br></div>
                <div><div id=3D"ydpd5c7d075yiv2127974545"><div><div dir=3D"=
ltr"><div style=3D"font-size:small;" class=3D"ydpd5c7d075yiv2127974545gmail=
_default">I'm not aware of any Whitworth threads installed by S-T (at least=
 on a sidescreen car).&nbsp; There may be some Whitworth and BA threads on =
bought-in components, like SU carbs, Smiths, and possibly some Lucas.&nbsp;=
 But I'll be shocked sh*tless to learn legit Withworth threads&nbsp;were us=
ed in a S-T engine.</div><div style=3D"font-size:small;" class=3D"ydpd5c7d0=
75yiv2127974545gmail_default"><br clear=3D"none"></div><div style=3D"font-s=
ize:small;" class=3D"ydpd5c7d075yiv2127974545gmail_default">Jonmac, I'd nev=
er heard that metric and inch fasteners&nbsp;were used on the line at the s=
ame time depending on the end market for the vehicle.&nbsp; That's a fascin=
ating bit of trivia, and one of the reasons we love having you here!&nbsp; =
What time period are you talking about for that?&nbsp; Maybe 1970s?</div></=
div><br clear=3D"none"><div class=3D"ydpd5c7d075yiv2127974545gmail_quote yd=
pd5c7d075yiv2127974545gmail_quote_container"><div id=3D"ydpd5c7d075yiv21279=
74545yqtfd04561" class=3D"ydpd5c7d075yiv2127974545yqt7697105471"><div dir=
=3D"ltr" class=3D"ydpd5c7d075yiv2127974545gmail_attr">On Wed, Apr 30, 2025 =
at 4:27=E2=80=AFPM John Macartney &lt;<a shape=3D"rect" href=3D"mailto:john=
[email-masked]" rel=3D"nofollow" target=3D"_blank">[email-masked]=
om</a>&gt; wrote:<br clear=3D"none"></div></div><blockquote style=3D"margin=
:0px 0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex;=
" class=3D"ydpd5c7d075yiv2127974545gmail_quote"><div id=3D"ydpd5c7d075yiv21=
27974545yqtfd21694" class=3D"ydpd5c7d075yiv2127974545yqt7697105471">I have =
my doubts about the offending item having Whitworth ancestry. While I=E2=80=
=99ve long been a Whitworth advocate and enthusiast (for purely patriotic r=
easons) I think it might be worth going down a metric route. There was a ti=
me when the factory briefly reverted to metric hardware that was market spe=
cific for European build. Needless to say, certain bits of hardware went wh=
ere they shouldn=E2=80=99t (or inadvertently wound up there). Might this be=
 a possible avenue to explore? Evaluate metric fine and coarse pitch thread=
s.<br clear=3D"none">
<br clear=3D"none">
Jonmac</div><br clear=3D"none">
** <a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"nofollo=
w" target=3D"_blank">[email-masked]</a> **<br clear=3D"none">
<br clear=3D"none">
ofollow" target=3D"_blank">http://www.team.net/donate.html</a><br clear=3D"=
none">
Archive: <a shape=3D"rect" href=3D"http://www.team.net/pipermail/triumphs" =
rel=3D"nofollow" target=3D"_blank">http://www.team.net/pipermail/triumphs</=
a>&nbsp; <a shape=3D"rect" href=3D"http://www.team.net/archive" rel=3D"nofo=
llow" target=3D"_blank">http://www.team.net/archive</a><br clear=3D"none">
<br clear=3D"none">
/options/triumphs/[email-masked]" rel=3D"nofollow" target=3D"_blank"=
>http://autox.team.net/mailman/options/triumphs/[email-masked]</a><d=
iv id=3D"ydpd5c7d075yiv2127974545yqtfd40089" class=3D"ydpd5c7d075yiv2127974=
545yqt7697105471"><br clear=3D"none">
</div></blockquote></div><div id=3D"ydpd5c7d075yiv2127974545yqtfd97872" cla=
ss=3D"ydpd5c7d075yiv2127974545yqt7697105471">
</div></div></div></div>
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From: DAVID MASSEY <[email-masked]>
Date: Thu, 1 May 2025 01:38:40 +0000 (UTC)

--===============3880804263872982002==
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I may well be metric but there are a variety of thread pitches in metric fa=
steners and your local hardware store will only carry the most common size.=
=C2=A0 This may be why you can't find the right one.
Dave=20

=20

    On Wednesday, April 30, 2025 at 05:49:22 PM CDT, Roger Elliott <elliott=
[email-masked]> wrote:  =20

 Thanks John.
I am trying to look at metric.=C2=A0 It doesn't seem to be a size that is=
=20
commonly stocked at hardware stores around here.

Roger

> I have my doubts about the offending item having Whitworth ancestry. Whil=
e I=E2=80=99ve long been a Whitworth advocate and enthusiast (for purely pa=
triotic reasons) I think it might be worth going down a metric route. There=
 was a time when the factory briefly reverted to metric hardware that was m=
arket specific for European build. Needless to say, certain bits of hardwar=
e went where they shouldn=E2=80=99t (or inadvertently wound up there). Migh=
t this be a possible avenue to explore? Evaluate metric fine and coarse pit=
ch threads.
> Archive: http://www.team.net/pipermail/triumphs=C2=A0 http://www.team.net=
/archive
>
> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/elliot=
[email-masked]

[email-masked]
 =20
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<html><head></head><body><div class=3D"ydp8ff40c48yahoo-style-wrap" style=
=3D"font-family:Arial, Helvetica, sans-serif;font-size:16px;"><div><div dir=
=3D"ltr" data-setdir=3D"false">I may well be metric but there are a variety=
 of thread pitches in metric fasteners and your local hardware store will o=
nly carry the most common size.&nbsp; This may be why you can't find the ri=
ght one.</div><div><br></div><div class=3D"ydp8ff40c48signature"><div style=
=3D"color: black; font-style: normal; font-size-adjust: none; font-weight: =
normal; font-stretch: normal; font-size: 12pt; line-height: normal; font-fa=
mily: Arial, Helvetica, sans-serif;"><div style=3D"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=3D"4">Dave <br></font></div><div><span style=3D"fo=
nt-size:10.0pt;font-family:sans-serif;color:black;"><br></span></div><br></=
div></div></div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"ydp1db30692yahoo_quoted_6493632280" class=3D"ydp1d=
b30692yahoo_quoted"><div class=3D"ydp1db30692yahoo-style-wrap" style=3D"fon=
t-family:Arial, Helvetica, sans-serif;font-size:16px;">
            <div style=3D"font-family:'Helvetica Neue', Helvetica, Arial, s=
ans-serif;font-size:13px;color:#26282a;">
               =20
                <div class=3D"ydp1db30692quoted-text-header">
                        On Wednesday, April 30, 2025 at 05:49:22 PM CDT, Ro=
ger Elliott &lt;[email-masked]&gt; wrote:
                    </div>
                </div><div style=3D"font-family:'Helvetica Neue', Helvetica=
, Arial, sans-serif;font-size:13px;color:#26282a;border-left: 1px solid #cc=
c;padding-left: 8px;margin: 0px 0px 0px 8px" class=3D"ydp1db30692inline_rep=
ly_quote_container" data-split-quote-node=3D"true">
                <div><br></div><div><br></div>
                <div><div dir=3D"ltr">Thanks John.<br clear=3D"none">I am t=
rying to look at metric.&nbsp; It doesn't seem to be a size that is <br cle=
ar=3D"none">commonly stocked at hardware stores around here.<br clear=3D"no=
ne"><br clear=3D"none">Roger<br clear=3D"none"><br clear=3D"none"><div clas=
s=3D"ydp1db30692yqt3124096560" id=3D"ydp1db30692yqtfd82792"><br clear=3D"no=
ne">On 4/30/25 16:55, John Macartney wrote:<br clear=3D"none">&gt; I have m=
y doubts about the offending item having Whitworth ancestry. While I=E2=80=
=99ve long been a Whitworth advocate and enthusiast (for purely patriotic r=
easons) I think it might be worth going down a metric route. There was a ti=
me when the factory briefly reverted to metric hardware that was market spe=
cific for European build. Needless to say, certain bits of hardware went wh=
ere they shouldn=E2=80=99t (or inadvertently wound up there). Might this be=
 a possible avenue to explore? Evaluate metric fine and coarse pitch thread=
s.<br clear=3D"none">&gt;<br clear=3D"none">&gt; Jonmac</div><br clear=3D"n=
one">&gt; ** <a shape=3D"rect" href=3D"mailto:[email-masked]" rel=
=3D"nofollow" target=3D"_blank">[email-masked]</a> **<br clear=3D"=
none">&gt;<br clear=3D"none">&gt; Donate: <a shape=3D"rect" href=3D"http://=
www.team.net/donate.html" rel=3D"nofollow" target=3D"_blank">http://www.tea=
m.net/donate.html</a><br clear=3D"none">&gt; Archive: <a shape=3D"rect" hre=
f=3D"http://www.team.net/pipermail/triumphs" rel=3D"nofollow" target=3D"_bl=
ank">http://www.team.net/pipermail/triumphs</a>&nbsp; <a shape=3D"rect" hre=
f=3D"http://www.team.net/archive" rel=3D"nofollow" target=3D"_blank">http:/=
/www.team.net/archive</a><br clear=3D"none">&gt;<br clear=3D"none">&gt; Uns=
ubscribe/Manage: <a shape=3D"rect" href=3D"http://autox.team.net/mailman/op=
tions/triumphs/[email-masked]" rel=3D"nofollow" target=3D"_blank">http://=
autox.team.net/mailman/options/triumphs/[email-masked]</a><br clear=3D"no=
ne">** <a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"nof=
ollow" target=3D"_blank">[email-masked]</a> **<br clear=3D"none"><=
br clear=3D"none">Donate: <a shape=3D"rect" href=3D"http://www.team.net/don=
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From: Don Hiscock <[email-masked]>
Date: Wed, 30 Apr 2025 23:13:52 -0500

--===============2788303157160283127==

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Are you referring to the Tenax studs on the windscreen frame, Dave?  I'd
have guessed those were BA threaded.

On Wed, Apr 30, 2025 at 8:35=E2=80=AFPM DAVID MASSEY <[email-masked]> w=
rote:

> There are Whitworth fasteners used on the TR3 windshield.  I bought a set
> of Whitworth taps and dies when I restored my windscreen for that reason.
> But, no, that is not the engine.
>
> Dave
>
>
>
>
> On Wednesday, April 30, 2025 at 05:34:25 PM CDT, Don Hiscock <
> [email-masked]> wrote:
>
>
ne.
s
x.com>
e
triotic
nt
s be a
.
> http://autox.team.net/mailman/options/triumphs/[email-masked]

--00000000000098dc9906340b4349
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<div dir=3D"ltr"><div class=3D"gmail_default" style=3D"font-size:small">Are=
 you referring to the=C2=A0Tenax studs on the=C2=A0windscreen=C2=A0frame, D=
ave?=C2=A0 I&#39;d have guessed those were BA threaded.</div></div><br><div=
 class=3D"gmail_quote gmail_quote_container"><div dir=3D"ltr" class=3D"gmai=
l_attr">On Wed, Apr 30, 2025 at 8:35=E2=80=AFPM DAVID MASSEY &lt;<a href=3D=
"mailto:[email-masked]">[email-masked]</a>&gt; wrote:<br></div><blo=
ckquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left=
-width:1px;border-left-style:solid;border-left-color:rgb(204,204,204);paddi=
ng-left:1ex"><div><div style=3D"font-family:Arial,Helvetica,sans-serif;font=
-size:16px"><div><div dir=3D"ltr">There are Whitworth fasteners used on the=
 TR3 windshield.=C2=A0 I bought a set of Whitworth taps and dies when I res=
tored my windscreen for that reason.=C2=A0 But, no, that is not the engine.=
</div><div><br></div><div><div style=3D"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=3D"color:=
black;font-style:normal;font-size-adjust:none;font-weight:normal;font-stret=
ch:normal;font-size:12pt;line-height:normal;font-family:Arial,Helvetica,san=
s-serif"><div><font size=3D"4">Dave <br></font></div><div><span style=3D"fo=
nt-size:10pt;font-family:sans-serif;color:black"><br></span></div><br></div=
></div></div></div>
        <div><br></div><div><br></div>
       =20
        </div><div id=3D"m_-5817955450121499882ydpd5c7d075yahoo_quoted_6714=
698056"><div style=3D"font-family:Arial,Helvetica,sans-serif;font-size:16px=
">
            <div style=3D"font-family:&quot;Helvetica Neue&quot;,Helvetica,=
Arial,sans-serif;font-size:13px;color:rgb(38,40,42)">
               =20
                <div>
                        On Wednesday, April 30, 2025 at 05:34:25 PM CDT, Do=
n Hiscock &lt;<a href=3D"mailto:[email-masked]" target=3D"_blank">do=
[email-masked]</a>&gt; wrote:
                    </div>
                </div><div style=3D"font-family:&quot;Helvetica Neue&quot;,=
Helvetica,Arial,sans-serif;font-size:13px;color:rgb(38,40,42);border-left-w=
idth:1px;border-left-style:solid;border-left-color:rgb(204,204,204);padding=
-left:8px;margin:0px 0px 0px 8px">
                <div><br></div><div><br></div>
                <div><div id=3D"m_-5817955450121499882ydpd5c7d075yiv2127974=
545"><div><div dir=3D"ltr"><div style=3D"font-size:small">I&#39;m not aware=
 of any Whitworth threads installed by S-T (at least on a sidescreen car).=
=C2=A0 There may be some Whitworth and BA threads on bought-in components, =
like SU carbs, Smiths, and possibly some Lucas.=C2=A0 But I&#39;ll be shock=
ed sh*tless to learn legit Withworth threads=C2=A0were used in a S-T engine=
.</div><div style=3D"font-size:small"><br clear=3D"none"></div><div style=
=3D"font-size:small">Jonmac, I&#39;d never heard that metric and inch faste=
ners=C2=A0were used on the line at the same time depending on the end marke=
t for the vehicle.=C2=A0 That&#39;s a fascinating bit of trivia, and one of=
 the reasons we love having you here!=C2=A0 What time period are you talkin=
g about for that?=C2=A0 Maybe 1970s?</div></div><br clear=3D"none"><div><di=
v id=3D"m_-5817955450121499882ydpd5c7d075yiv2127974545yqtfd04561"><div dir=
=3D"ltr">On Wed, Apr 30, 2025 at 4:27=E2=80=AFPM John Macartney &lt;<a shap=
e=3D"rect" href=3D"mailto:[email-masked]" rel=3D"nofollow" target=
=3D"_blank">[email-masked]</a>&gt; wrote:<br clear=3D"none"></div><=
/div><blockquote style=3D"margin:0px 0px 0px 0.8ex;border-left-width:1px;bo=
rder-left-style:solid;border-left-color:rgb(204,204,204);padding-left:1ex">=
<div id=3D"m_-5817955450121499882ydpd5c7d075yiv2127974545yqtfd21694">I have=
 my doubts about the offending item having Whitworth ancestry. While I=E2=
=80=99ve long been a Whitworth advocate and enthusiast (for purely patrioti=
c reasons) I think it might be worth going down a metric route. There was a=
 time when the factory briefly reverted to metric hardware that was market =
specific for European build. Needless to say, certain bits of hardware went=
 where they shouldn=E2=80=99t (or inadvertently wound up there). Might this=
 be a possible avenue to explore? Evaluate metric fine and coarse pitch thr=
eads.<br clear=3D"none">
<br clear=3D"none">
Jonmac</div><br clear=3D"none">
** <a shape=3D"rect" href=3D"mailto:[email-masked]" rel=3D"nofollo=
w" target=3D"_blank">[email-masked]</a> **<br clear=3D"none">
<br clear=3D"none">
ofollow" target=3D"_blank">http://www.team.net/donate.html</a><br clear=3D"=
none">
Archive: <a shape=3D"rect" href=3D"http://www.team.net/pipermail/triumphs" =
rel=3D"nofollow" target=3D"_blank">http://www.team.net/pipermail/triumphs</=
a>=C2=A0 <a shape=3D"rect" href=3D"http://www.team.net/archive" rel=3D"nofo=
llow" target=3D"_blank">http://www.team.net/archive</a><br clear=3D"none">
<br clear=3D"none">
/options/triumphs/[email-masked]" rel=3D"nofollow" target=3D"_blank"=
>http://autox.team.net/mailman/options/triumphs/[email-masked]</a><d=
iv id=3D"m_-5817955450121499882ydpd5c7d075yiv2127974545yqtfd40089"><br clea=
r=3D"none">
</div></blockquote></div><div id=3D"m_-5817955450121499882ydpd5c7d075yiv212=
7974545yqtfd97872">
</div></div></div></div>
            </div>
        </div></div></div></blockquote></div>

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