Subject: [Healeys] Manifold bolts

From: Mark Donaldson via Healeys <[email-masked]>
Date: Fri, 20 May 2022 21:37:17 +1200

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Listers,

=20

I have a question about the four bolts that secure the intake manifold =
to
the exhaust manifolds on our 6-cylinders.

Over the 60 years the threads between the aluminium (note correct =
spelling)
and the cast iron have been sacrificed, rendering the bolts unreliable.

The parts manual tells us they are: HBZ 056  -  3 =BC=94 x 5/16=94 with =
the end
thread 1=94 long.

=20

Though an unusual bolt, I think I can source them here in NZ.

=20

My question is:  What is the thread?   UNF or BSF

=20

TIA

=20

Mark

Ardmore

NZ=20

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link=3D"#0563C1" vlink=3D"#954F72" style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>Listers,<o:p><=
/o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'><o:p>&nbsp;</o=
:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>I have a =
question about the four bolts that secure the intake manifold to the =
exhaust manifolds on our 6-cylinders.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>Over the 60 =
years the threads between the aluminium (note correct spelling) and the =
cast iron have been sacrificed, rendering the bolts =
unreliable.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>The parts =
manual tells us they are: <b>HBZ 056=A0 </b>-=A0 3 =BC&#8221; x =
5/16&#8221; with the end thread 1&#8221; long.<o:p></o:p></span></p><p =
class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'><o:p>&nbsp;</o=
:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>Though an =
unusual bolt, I think I can source them here in =
NZ.<o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'><o:p>&nbsp;</o=
:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>My question =
is: =A0<b>What is the thread?=A0=A0 UNF or =
BSF</b><o:p></o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'><o:p>&nbsp;</o=
:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>TIA<o:p></o:p>=
</span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'><o:p>&nbsp;</o=
:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>Mark<o:p></o:p=
></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>Ardmore<o:p></=
o:p></span></p><p class=3DMsoNormal><span lang=3DEN-US =
style=3D'font-size:10.0pt;font-family:"Tahoma",sans-serif'>NZ =
<o:p></o:p></span></p></div></body></html>
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---

From: Michael Salter via Healeys <[email-masked]>
Date: Fri, 20 May 2022 11:36:54 +0100

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UNF Mark.

M

On Fri., May 20, 2022, 10:37 a.m. Mark Donaldson via Healeys, <
[email-masked]> wrote:

> Listers,
>
>
>
> I have a question about the four bolts that secure the intake manifold to
> Over the 60 years the threads between the aluminium (note correct
> spelling) and the cast iron have been sacrificed, rendering the bolts
> unreliable.
>
> The parts manual tells us they are: *HBZ 056  *-  3 =C2=BC=E2=80=9D x 5/1=
6=E2=80=9D with the
> end thread 1=E2=80=9D long.
>
>
>
> My question is:  *What is the thread?   UNF or BSF*
>
>
>
> TIA
>
>
>
> Mark
>
> Ardmore
>
> NZ
> 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">UNF Mark.<div dir=3D"auto"><br></div><div dir=3D"auto">M<=
/div></div><br><div class=3D"gmail_quote"><div dir=3D"ltr" class=3D"gmail_a=
ttr">On Fri., May 20, 2022, 10:37 a.m. Mark Donaldson via Healeys, &lt;<a h=
ref=3D"mailto:[email-masked]">[email-masked]</a>&gt; wrote:=
<br></div><blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;bord=
er-left:1px #ccc solid;padding-left:1ex"><div lang=3D"EN-NZ" link=3D"#0563C=
1" vlink=3D"#954F72" style=3D"word-wrap:break-word"><div class=3D"m_6689139=
862745670443WordSection1"><p class=3D"MsoNormal"><span lang=3D"EN-US" style=
=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">Listers,<u>=
</u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"=
font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"><u></u>=C2=A0<u=
></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-s=
ize:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">I have a question abo=
ut the four bolts that secure the intake manifold to the exhaust manifolds =
on our 6-cylinders.<u></u><u></u></span></p><p class=3D"MsoNormal"><span la=
ng=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-=
serif">Over the 60 years the threads between the aluminium (note correct sp=
elling) and the cast iron have been sacrificed, rendering the bolts unrelia=
ble.<u></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" st=
yle=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">The part=
s manual tells us they are: <b>HBZ 056=C2=A0 </b>-=C2=A0 3 =C2=BC=E2=80=9D =
x 5/16=E2=80=9D with the end thread 1=E2=80=9D long.<u></u><u></u></span></=
p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;fon=
t-family:&quot;Tahoma&quot;,sans-serif"><u></u>=C2=A0<u></u></span></p><p c=
lass=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-fami=
ly:&quot;Tahoma&quot;,sans-serif">Though an unusual bolt, I think I can sou=
rce them here in NZ.<u></u><u></u></span></p><p class=3D"MsoNormal"><span l=
ang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans=
-serif"><u></u>=C2=A0<u></u></span></p><p class=3D"MsoNormal"><span lang=3D=
"EN-US" style=3D"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif=
">My question is: =C2=A0<b>What is the thread?=C2=A0=C2=A0 UNF or BSF</b><u=
></u><u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D=
"font-size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif"><u></u>=C2=A0<=
u></u></span></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-=
size:10.0pt;font-family:&quot;Tahoma&quot;,sans-serif">TIA<u></u><u></u></s=
pan></p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0=
pt;font-family:&quot;Tahoma&quot;,sans-serif"><u></u>=C2=A0<u></u></span></=
p><p class=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;fon=
t-family:&quot;Tahoma&quot;,sans-serif">Mark<u></u><u></u></span></p><p cla=
ss=3D"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family=
:&quot;Tahoma&quot;,sans-serif">Ardmore<u></u><u></u></span></p><p class=3D=
"MsoNormal"><span lang=3D"EN-US" style=3D"font-size:10.0pt;font-family:&quo=
t;Tahoma&quot;,sans-serif">NZ <u></u><u></u></span></p></div></div>________=
_______________________________________<br>
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