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Absolutely correct Mike.
The carburetors (made by SU) and everything electrical (made by Lucas)
retained their BSF, BSW and BA thread systems right to the end in 1967 ...
and thereafter in other makes.
The 100 windshield was also something that used BSF and BA threads until
the end of BN2 production.
M
On Fri, Feb 22, 2019, 9:09 PM mike brooks, <hypercubic@yahoo.co.uk> wrote:
> Hi Michael and Mike
>
> The parts list for the 100/6 is clear that the small size unified threads
> were being used on it so I'm wrong there However, the last two jobs I've
> done recently on my 56 BN2 were the windscreen and the carburetters - all
> BA threads.
>
> Mike
>
> Sent from Yahoo Mail on Android
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>
> On Fri, 22 Feb 2019 at 2:13 am, Mike MacLean
> <rrengineer.mike@att.net> wrote:
> Would the 2ba screws still be used on a late (56) BN2?
> Mike M
>
> On Feb 21, 2019 3:00 PM, Michael Salter <michael.salter@gmail.com> wrote:
>
> Hi Mike,
> I believe that this subject has been studied in depth by Curt Arndt so he
> is the real expert however, here is something that may help.
> The 100/6 parts book lists 4 screws to secure the rear quarter panels to
> the inner sill (at the bottom).
> The part number is *PMN0310* meaning, I believe, 3/16 diameter x 10
> sixteenths long and the description is *Screws N0. 10 U.N.F x 5/8"*
>
> *https://lbcdigital.com/bmc_publications/akd1423/
> <https://lbcdigital.com/bmc_publications/akd1423/>*
> I'm aware that the 100 used many 2BA screws which seemed to slowly be
> replaced with #10/32 screws as the years went by.
> My very early 100 had a lot of 2BA but also many 10/32.
>
> M
>
> On Fri, Feb 22, 2019 at 10:55 AM mike brooks <hypercubic@yahoo.co.uk>
> wrote:
>
> I hesitate to write this as I am effectively arguing with people far more
> knowledgeable than I am. However, I have several times noticed that people
> are saying that 10 32 bolts or screws were used on Healeys when I know they
> are actually 2BA. Although UK started using UNC and UNF bolts and screws as
> Whitworth and BSF went out of fashion ( and prior to metrication), the
> small Unified sizes that had numerical- only designations (like 8, 10)
> were very rarely used in the UK, where we carried on with BA for the
> smaller sizes.
>
> Rgds
>
> Mike Brooks
> BN2 Scotland
>
> Sent from Yahoo Mail on Android
> <https://go.onelink.me/107872968?pid=InProduct&c=Global_Internal_YGrowth_AndroidEmailSig__AndroidUsers&af_wl=ym&af_sub1=Internal&af_sub2=Global_YGrowth&af_sub3=EmailSignature>
>
>
>
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<div dir=3D"auto"><div>Absolutely correct Mike.</div><div dir=3D"auto">The =
carburetors (made by SU) and everything electrical (made by Lucas) retained=
their BSF, BSW and BA thread systems right to the end in 1967 ... and ther=
eafter in other makes.=C2=A0</div><div dir=3D"auto">The 100 windshield was =
also something that used BSF and BA threads until the end of BN2 production=
.</div><div dir=3D"auto"><br></div><div dir=3D"auto">M<br><br><div class=3D=
"gmail_quote" dir=3D"auto"><div dir=3D"ltr" class=3D"gmail_attr">On Fri, Fe=
b 22, 2019, 9:09 PM mike brooks, <<a href=3D"mailto:hypercubic@yahoo.co.=
uk" target=3D"_blank" rel=3D"noreferrer">hypercubic@yahoo.co.uk</a>> wro=
te:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;b=
order-left:1px #ccc solid;padding-left:1ex">Hi Michael and Mike<div id=3D"m=
_-6614770113798806734m_6338142460873820609yMail_cursorElementTracker_155082=
2698224"><br></div><div id=3D"m_-6614770113798806734m_6338142460873820609yM=
ail_cursorElementTracker_1550822700926">The parts list for the 100/6 is cle=
ar that the small size unified threads were being used on it so I'm wro=
ng there However, the last two jobs I've done recently on my 56 BN2 wer=
e the windscreen and the carburetters - all BA threads.</div><div id=3D"m_-=
6614770113798806734m_6338142460873820609yMail_cursorElementTracker_15508229=
34322"><br></div><div id=3D"m_-6614770113798806734m_6338142460873820609yMai=
l_cursorElementTracker_1550822936274">Mike<br><br><div id=3D"m_-66147701137=
98806734m_6338142460873820609ymail_android_signature"><a href=3D"https://go=
.onelink.me/107872968?pid=3DInProduct&c=3DGlobal_Internal_YGrowth_Andro=
idEmailSig__AndroidUsers&af_wl=3Dym&af_sub1=3DInternal&af_sub2=
=3DGlobal_YGrowth&af_sub3=3DEmailSignature" rel=3D"noreferrer noreferre=
r" target=3D"_blank">Sent from Yahoo Mail on Android</a></div> <br> <blockq=
uote style=3D"margin:0 0 20px 0"> <div style=3D"font-family:Roboto,sans-ser=
if;color:#6d00f6"> <div>On Fri, 22 Feb 2019 at 2:13 am, Mike MacLean</div><=
div><<a href=3D"mailto:rrengineer.mike@att.net"; rel=3D"noreferrer norefe=
rrer" target=3D"_blank">rrengineer.mike@att.net</a>> wrote:</div> </div>=
<div style=3D"padding:10px 0 0 20px;margin:10px 0 0 0;border-left:1px soli=
d #6d00f6"> <div id=3D"m_-6614770113798806734m_6338142460873820609yiv630132=
8994"><div><div>Would the 2ba screws still be used on a late (56) BN2?<div>=
Mike M</div></div><div class=3D"m_-6614770113798806734m_6338142460873820609=
yiv6301328994yqt9993860788 m_-6614770113798806734m_6338142460873820609yQTDB=
ase" id=3D"m_-6614770113798806734m_6338142460873820609yiv6301328994yqt58621=
"><div class=3D"m_-6614770113798806734m_6338142460873820609yiv6301328994gma=
il_extra"><br clear=3D"none"><div class=3D"m_-6614770113798806734m_63381424=
60873820609yiv6301328994gmail_quote">On Feb 21, 2019 3:00 PM, Michael Salte=
r <<a href=3D"mailto:michael.salter@gmail.com"; rel=3D"noreferrer norefer=
rer" target=3D"_blank">michael.salter@gmail.com</a>> wrote:<br clear=3D"=
none"><blockquote class=3D"m_-6614770113798806734m_6338142460873820609yiv63=
01328994quote" style=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;paddin=
g-left:1ex"><div dir=3D"ltr"><div dir=3D"ltr"><div style=3D"font-family:=
9;comic sans ms',sans-serif;font-size:small">Hi Mike,</div><div style=
=3D"font-family:'comic sans ms',sans-serif;font-size:small">I belie=
ve that this subject has been studied in depth by Curt Arndt so he is the r=
eal expert however, here is something that may help.</div><div style=3D"fon=
t-family:'comic sans ms',sans-serif;font-size:small">The 100/6 part=
s book lists 4 screws to secure the rear quarter panels to the inner sill (=
at the bottom).</div><div style=3D"font-family:'comic sans ms',sans=
-serif;font-size:small">The part number is <i><b>PMN0310</b></i> meaning, I=
believe, 3/16 diameter x 10 sixteenths long and the description is <i><b>S=
crews N0. 10 U.N.F x 5/8"</b></i></div><div style=3D"font-family:'=
comic sans ms',sans-serif;font-size:small"><i><b><span style=3D"color:r=
gb(0,0,255)"><a rel=3D"nofollow noreferrer noreferrer" shape=3D"rect" href=
=3D"https://lbcdigital.com/bmc_publications/akd1423/"; target=3D"_blank">htt=
ps://lbcdigital.com/bmc_publications/akd1423/</a></span><br clear=3D"none">=
</b></i></div><div style=3D"font-family:'comic sans ms',sans-serif;=
font-size:small">I'm aware that the 100 used many 2BA screws which seem=
ed to slowly be replaced with #10/32 screws as the years went by. <br clear=
=3D"none"></div><div style=3D"font-family:'comic sans ms',sans-seri=
f;font-size:small">My very early 100 had a lot of 2BA but also many 10/32.<=
/div><div style=3D"font-family:'comic sans ms',sans-serif;font-size=
:small"><br clear=3D"none"></div><div style=3D"font-family:'comic sans =
ms',sans-serif;font-size:small">M<br clear=3D"none"></div></div></div><=
br clear=3D"none"><div class=3D"m_-6614770113798806734m_6338142460873820609=
yiv6301328994elided-text"><div dir=3D"ltr">On Fri, Feb 22, 2019 at 10:55 AM=
mike brooks <<a rel=3D"nofollow noreferrer noreferrer" shape=3D"rect" h=
ref=3D"mailto:hypercubic@yahoo.co.uk"; target=3D"_blank">hypercubic@yahoo.co=
.uk</a>> wrote:<br clear=3D"none"></div><blockquote style=3D"margin:0px =
0px 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex">I he=
sitate to write this as I am effectively arguing with people far more knowl=
edgeable than I am. However, I have several times noticed that people are s=
aying that 10 32 bolts or screws were used on Healeys when I know they are =
actually 2BA. Although UK started using UNC and UNF bolts and screws as Whi=
tworth and BSF went out of fashion ( and prior to metrication), the small =
=C2=A0Unified sizes that had numerical- only designations (like 8, 10) were=
very rarely used in the UK, where we carried on with BA for the smaller si=
zes.<div><br clear=3D"none"></div><div>Rgds</div><div><br clear=3D"none"></=
div><div>Mike Brooks</div><div>BN2 Scotland<br clear=3D"none"><br clear=3D"=
none"><div><a rel=3D"nofollow noreferrer noreferrer" shape=3D"rect" href=3D=
"https://go.onelink.me/107872968?pid=3DInProduct&c=3DGlobal_Internal_YG=
rowth_AndroidEmailSig__AndroidUsers&af_wl=3Dym&af_sub1=3DInternal&a=
mp;af_sub2=3DGlobal_YGrowth&af_sub3=3DEmailSignature" target=3D"_blank"=
>Sent from Yahoo Mail on Android</a></div></div></blockquote></div>
</blockquote></div><br clear=3D"none"></div></div></div></div> </div> </blo=
ckquote></div></blockquote></div></div></div>
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