Subject: Re: [Healeys] Exhaust hangers

From: Curtis Arndt <[email-masked]>
Date: Tue, 23 May 2023 09:40:24 -0700

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Hank

Thanks! Very cool photo, may we use this for the AH Concours Guidelines?

No one can tell just when the "U" bracket threads changed.

Many Whitworth fasteners on the late BN1s and BN2s were changed over to UNF
in late '55 nad '56. Most of these changes were documented in the factory
parts manual and service bulletins while some were not documented at all.
Like Hank stated, when the parts bin ran out, new items were often sourced
and installed, and not necessarily documented.

Until we can confirm that were UNF threaded "U" brackets used on later 100s
in lieu of the BSF ones, then the assumption has to be that they were used
until the end of BN2 production. So, if anyone out there has an original
"U" clamp from a late BN1 or BN2 with UNF threads, please submit
documentation to Michael Salter and me so that we can update the Concours
Guidelines.

Cheers,

Curt Arndt

On Tue, May 23, 2023 at 8:59=E2=80=AFAM Hank Leach <[email-masked]> wr=
ote:

> Ok, as long as we are showing clamps, here is my NOS exhaust bracket set.
> It was still wrapped in this photo, but as Curt says- its British
> thread-probably until mid 1954 when they tried to unify or whenever the b=
in
> holding exhaust brackets ran out and they refilled it. Whichever came
> first. They did not throw any away in lieu of unified replacements.
>
> Likely, Michael's new set will be UNF as they are not making any early
> parts for "purists"-same holds true on the rear gearbox mounts and other
> items as well. Hank
>
> -----------------------------------------
> From: "Curtis Arndt via Healeys"
> To: "Michael Salter"
> Cc: "Ahealey help"
> Sent: Tuesday May 23 2023 8:27:22AM
> Subject: Re: [Healeys] Exhaust hangers
>
> *<To be correct the "U" clamp should have UNF threads.   Just sayin'>*
>
> Michael, FWIW, both of my ORIGINAL "U" shaped clamps have BSF fasteners..=
.
> See photos. I reused one of my originals when I restored my BN1. Modern
> reproduction "U" clamps use UNF or more commonly UNC fasteners.
>
> On Mon, May 22, 2023 at 7:33=E2=80=AFPM Michael Salter <michaelsalter@gma=
il.com>
> wrote:
>
>> The strut attaches to an extra length oil pan screw, the one directly
>> below the spot where the tach cable attaches to the tach drive housing.
>> To be correct the "U" clamp should have UNF threads.   Just sayin'
>>
>> M
>>
>> On Mon., May 22, 2023, 5:47 p.m. Michael MacLean via Healeys, <
>> [email-masked]> wrote:
>>
>>> Excuse my ignorance, but can someone tell me what number 8 is bolted to
>>> and where does it clamp to the exhaust pipe? Anyone have a picture of t=
his
>>> hanger in place?  I am ordering all the hangers for the exhaust system =
to
>>> install before I take the car off the jack stands.
>>> Mike MacLean
>>>
>>

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<div dir=3D"ltr"><font size=3D"4">Hank</font><div><font size=3D"4"><br></fo=
nt></div><div><font size=3D"4">Thanks! Very cool photo,=C2=A0may we use thi=
s for the AH Concours Guidelines?</font></div><div><font size=3D"4"><br></f=
ont></div><div><font size=3D"4">No one can tell just when the &quot;U&quot;=
 bracket threads changed.=C2=A0</font></div><div><font size=3D"4"><br></fon=
t></div><div><font size=3D"4">Many Whitworth fasteners=C2=A0on the late BN1=
s and BN2s were changed over to UNF in late &#39;55 nad &#39;56. Most of th=
ese changes=C2=A0were documented in the factory parts manual and service bu=
lletins while some were not documented=C2=A0at all. Like Hank stated, when =
the parts bin ran out, new items were often sourced and installed, and not =
necessarily documented.</font></div><div><font size=3D"4"><br></font></div>=
<div><font size=3D"4">Until we can confirm that were UNF threaded &quot;U&q=
uot; brackets used on later 100s in lieu of the BSF ones, then the assumpti=
on=C2=A0has to be that they were used until the end of BN2 production. So, =
if anyone out there has an original &quot;U&quot; clamp from a late BN1 or =
BN2 with UNF threads, please submit documentation to Michael Salter and me =
so that we can update the Concours Guidelines.</font></div><div><font size=
=3D"4"><br></font></div><div><font size=3D"4">Cheers,</font></div><div><fon=
t size=3D"4"><br></font></div><div><font size=3D"4">Curt Arndt</font></div>=
</div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">=
On Tue, May 23, 2023 at 8:59=E2=80=AFAM Hank Leach &lt;<a href=3D"mailto:gr=
[email-masked]">[email-masked]</a>&gt; wrote:<br></div><blockquote =
class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-left:1px sol=
id rgb(204,204,204);padding-left:1ex"><div>Ok, as long as we are showing cl=
amps, here is my NOS exhaust bracket set.=C2=A0 It was still wrapped in thi=
s photo, but as Curt says- its British thread-probably until mid 1954 when =
they tried to unify or whenever the bin holding exhaust brackets ran out an=
d they refilled it. Whichever came first. They did not throw any away in li=
eu of unified replacements.=C2=A0<div><br></div><div>Likely, Michael&#39;s =
new set will be UNF as they are not making any early parts for &quot;purist=
s&quot;-same holds true on the rear gearbox mounts and other items as well.=
 Hank<br><br><div></div><p>-----------------------------------------</p>Fro=
m: &quot;Curtis Arndt via Healeys&quot; <u></u><br>To: &quot;Michael Salter=
&quot;<br>Cc: &quot;Ahealey help&quot;<br>Sent: Tuesday May 23 2023 8:27:22=
AM<br>Subject: Re: [Healeys] Exhaust hangers<br><br>
<div dir=3D"ltr">
<div dir=3D"ltr"><font size=3D"4"><i>&lt;To be correct the &quot;U&quot; cl=
amp
should have UNF threads.=C2=A0 =C2=A0Just
sayin&#39;&gt;</i><br></font></div>
<div dir=3D"ltr"><font size=3D"4"><br></font></div>
<div dir=3D"ltr"><font size=3D"4">Michael, FWIW, both of my ORIGINAL
&quot;U&quot; shaped clamps have BSF fasteners... See photos. I reused one =
of
my originals when=C2=A0I restored my BN1. Modern reproduction &quot;U&quot;
clamps=C2=A0use UNF or more commonly UNC fasteners.</font></div>
<br><div class=3D"gmail_quote">
<div dir=3D"ltr" class=3D"gmail_attr">On Mon, May 22, 2023 at 7:33=E2=80=AF=
PM
Michael Salter &lt;<a>[email-masked]</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">
<div>The strut attaches to an extra length oil pan
screw, the one directly below the spot where the tach cable
attaches to the tach drive housing.
<div>To be correct the &quot;U&quot; clamp should have UNF
threads.=C2=A0 =C2=A0Just sayin&#39;</div>
<div><br></div>
<div>M</div>
</div>
<br><div class=3D"gmail_quote">
<div dir=3D"ltr" class=3D"gmail_attr">On Mon., May 22, 2023, 5:47 p.m.
Michael MacLean via Healeys, &lt;<a>[email-masked]</a>&gt; wrote:<b=
r></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">
<div dir=3D"ltr">
<div>Excuse my ignorance, but can someone tell me what number 8 is
bolted to and where does it clamp to the exhaust pipe? Anyone have
a picture of this hanger in place?=C2=A0 I am ordering all the
hangers for the exhaust system to install before I take the car off
the jack stands.</div>
<div>Mike MacLean</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
<u></u></div></div>
</blockquote></div>

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_______________________________________________

Archive: http://www.team.net/pipermail/healeys http://autox.team.net/archive/healeys

[email-masked]
http://autox.team.net/mailman/listinfo/healeys

--===============8825654112393829007==--

---

From: Michael MacLean <[email-masked]>
Date: Tue, 23 May 2023 11:33:20 -0700

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It seems my original inquiry has evolved into a Concours Guide correction.
Glad to be of service to the Healey community.  More than likely the hanger
and clamp I ordered from Moss will be UNF threads.  While I respect a
restoration where every fastener is correct to date of assembly on the
line, I am not trying to recreate my car to that standard.  I appreciate
all the photos of the parts involved even though some have said it is not
on their car and is not exactly necessary.   I'm just trying to make it
"look" right in the beginning. If it rusts off after a number of years that
will just like they did originally.  That aside, I still have not seen a
photo of the assembly in place on the car. Anyone?
Mike MacLean

On Tue, May 23, 2023, 11:10 AM Curtis Arndt <[email-masked]> wrote:

> Many Whitworth fasteners on the late BN1s and BN2s were changed over to
> UNF in late '55 nad '56. Most of these changes were documented in the
> factory parts manual and service bulletins while some were not
> documented at all. Like Hank stated, when the parts bin ran out, new item=
s
> were often sourced and installed, and not necessarily documented.
>
> Until we can confirm that were UNF threaded "U" brackets used on later
> 100s in lieu of the BSF ones, then the assumption has to be that they wer=
e
> used until the end of BN2 production. So, if anyone out there has an
> original "U" clamp from a late BN1 or BN2 with UNF threads, please submit
> On Tue, May 23, 2023 at 8:59=E2=80=AFAM Hank Leach <[email-masked]> =
wrote:
>
>> Ok, as long as we are showing clamps, here is my NOS exhaust bracket
>> set.  It was still wrapped in this photo, but as Curt says- its British
>> thread-probably until mid 1954 when they tried to unify or whenever the =
bin
>> Michael, FWIW, both of my ORIGINAL "U" shaped clamps have BSF
>> fasteners... See photos. I reused one of my originals when I restored my
>> BN1. Modern reproduction "U" clamps use UNF or more commonly UNC fastene=
rs.
>>
>> On Mon, May 22, 2023 at 7:33=E2=80=AFPM Michael Salter <michaelsalter@gm=
ail.com>
>>>> Excuse my ignorance, but can someone tell me what number 8 is bolted t=
o
>>>> and where does it clamp to the exhaust pipe? Anyone have a picture of =
this
>>>> hanger in place?  I am ordering all the hangers for the exhaust system=
 to
> Support Team.Net http://www.team.net/donate.html
> Suggested annual donation  $12.75
>
> Unsubscribe/Manage:
> http://autox.team.net/mailman/options/healeys/[email-masked]
>
>

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<div dir=3D"auto">It seems my original inquiry has evolved into a Concours =
Guide correction. Glad to be of service to the Healey community.=C2=A0 More=
 than likely the hanger and clamp I ordered from Moss will be UNF threads.=
=C2=A0 While I respect a restoration where every fastener is correct to dat=
e of assembly on the line, I am not trying to recreate my car to that stand=
ard.=C2=A0 I appreciate all the photos of the parts involved even though so=
me have said it is not on their car and is not exactly necessary.=C2=A0 =C2=
=A0I&#39;m just trying to make it &quot;look&quot; right in the beginning. =
If it rusts off after a number of years that will just like they did origin=
ally.=C2=A0 That aside, I still have not seen a photo of the assembly in pl=
ace on the car. Anyone?<div dir=3D"auto">Mike MacLean</div></div><br><div c=
lass=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue, May 23, =
2023, 11:10 AM Curtis Arndt &lt;<a href=3D"mailto:[email-masked]">cnaar=
[email-masked]</a>&gt; wrote:<br></div><blockquote class=3D"gmail_quote" sty=
le=3D"margin:0 0 0 .8ex;border-left:1px #ccc solid;padding-left:1ex"><div d=
ir=3D"ltr"><font size=3D"4">Hank</font><div><font size=3D"4"><br></font></d=
iv><div><font size=3D"4">Thanks! Very cool photo,=C2=A0may we use this for =
the AH Concours Guidelines?</font></div><div><font size=3D"4"><br></font></=
div><div><font size=3D"4">No one can tell just when the &quot;U&quot; brack=
et threads changed.=C2=A0</font></div><div><font size=3D"4"><br></font></di=
v><div><font size=3D"4">Many Whitworth fasteners=C2=A0on the late BN1s and =
BN2s were changed over to UNF in late &#39;55 nad &#39;56. Most of these ch=
anges=C2=A0were documented in the factory parts manual and service bulletin=
s while some were not documented=C2=A0at all. Like Hank stated, when the pa=
rts bin ran out, new items were often sourced and installed, and not necess=
arily documented.</font></div><div><font size=3D"4"><br></font></div><div><=
font size=3D"4">Until we can confirm that were UNF threaded &quot;U&quot; b=
rackets used on later 100s in lieu of the BSF ones, then the assumption=C2=
=A0has to be that they were used until the end of BN2 production. So, if an=
yone out there has an original &quot;U&quot; clamp from a late BN1 or BN2 w=
ith UNF threads, please submit documentation to Michael Salter and me so th=
at we can update the Concours Guidelines.</font></div><div><font size=3D"4"=
><br></font></div><div><font size=3D"4">Cheers,</font></div><div><font size=
=3D"4"><br></font></div><div><font size=3D"4">Curt Arndt</font></div></div>=
<br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_attr">On Tue=
, May 23, 2023 at 8:59=E2=80=AFAM Hank Leach &lt;<a href=3D"mailto:gradea1@=
charter.net" target=3D"_blank" rel=3D"noreferrer">[email-masked]</a>&g=
t; wrote:<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0px 0p=
x 0px 0.8ex;border-left:1px solid rgb(204,204,204);padding-left:1ex"><div>O=
k, as long as we are showing clamps, here is my NOS exhaust bracket set.=C2=
=A0 It was still wrapped in this photo, but as Curt says- its British threa=
d-probably until mid 1954 when they tried to unify or whenever the bin hold=
ing exhaust brackets ran out and they refilled it. Whichever came first. Th=
ey did not throw any away in lieu of unified replacements.=C2=A0<div><br></=
div><div>Likely, Michael&#39;s new set will be UNF as they are not making a=
ny early parts for &quot;purists&quot;-same holds true on the rear gearbox =
mounts and other items as well. Hank<br><br><div></div><p>-----------------=
------------------------</p>From: &quot;Curtis Arndt via Healeys&quot; <u><=
/u><br>To: &quot;Michael Salter&quot;<br>Cc: &quot;Ahealey help&quot;<br>Se=
nt: Tuesday May 23 2023 8:27:22AM<br>Subject: Re: [Healeys] Exhaust hangers=
<br><br>
<div dir=3D"ltr">
<div dir=3D"ltr"><font size=3D"4"><i>&lt;To be correct the &quot;U&quot; cl=
amp
should have UNF threads.=C2=A0 =C2=A0Just
sayin&#39;&gt;</i><br></font></div>
<div dir=3D"ltr"><font size=3D"4"><br></font></div>
<div dir=3D"ltr"><font size=3D"4">Michael, FWIW, both of my ORIGINAL
&quot;U&quot; shaped clamps have BSF fasteners... See photos. I reused one =
of
my originals when=C2=A0I restored my BN1. Modern reproduction &quot;U&quot;
clamps=C2=A0use UNF or more commonly UNC fasteners.</font></div>
<br><div class=3D"gmail_quote">
<div dir=3D"ltr" class=3D"gmail_attr">On Mon, May 22, 2023 at 7:33=E2=80=AF=
PM
Michael Salter &lt;<a rel=3D"noreferrer">[email-masked]</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">
<div>The strut attaches to an extra length oil pan
screw, the one directly below the spot where the tach cable
attaches to the tach drive housing.
<div>To be correct the &quot;U&quot; clamp should have UNF
threads.=C2=A0 =C2=A0Just sayin&#39;</div>
<div><br></div>
<div>M</div>
</div>
<br><div class=3D"gmail_quote">
<div dir=3D"ltr" class=3D"gmail_attr">On Mon., May 22, 2023, 5:47 p.m.
Michael MacLean via Healeys, &lt;<a rel=3D"noreferrer">[email-masked]=
et</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">
<div dir=3D"ltr">
<div>Excuse my ignorance, but can someone tell me what number 8 is
bolted to and where does it clamp to the exhaust pipe? Anyone have
a picture of this hanger in place?=C2=A0 I am ordering all the
hangers for the exhaust system to install before I take the car off
the jack stands.</div>
<div>Mike MacLean</div>
</div>
</blockquote>
</div>
</blockquote>
</div>
</div>
<u></u></div></div>
</blockquote></div>
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