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Bill -
One question - the hole goes from one end to the other on the flange of the
exhaust manifold, so do I set the coil with some high strength threadlocker=
?
Best,
Alan
On Sun, Feb 28, 2021 at 1:21 PM WILLIAM B LAWRENCE via Healeys <
healeys@autox.team.net> wrote:
> I doubt there is anything non-metallic that will stand up to the heat tha=
t
> close to the exhaust valves. Sounds like a job for a helicoil.
>
> Bill Lawrence
> BN1 #554
> ------------------------------
> *From:* Healeys <healeys-bounces@autox.team.net> on behalf of Bob Spidell
> via Healeys <healeys@autox.team.net>
> *Sent:* Sunday, February 28, 2021 5:06 AM
> *To:* healeys@autox.team.net <healeys@autox.team.net>
> *Subject:* Re: [Healeys] Exhaust header stud fix ?
>
> I used this stuff once to bolster the threads in a bellhousing slave
> cylinder mount:
>
>
> https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WS=
EUII/ref=3Dasc_df_B000WSEUII/?tag=3Dhyprod-20&linkCode=3Ddf0&hvadid=3D31210=
6049007&hvpos=3D&hvnetw=3Dg&hvrand=3D6889728303295400308&hvpone=3D&hvptwo=
=3D&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=3D&hvlocphy=3D1014019&hvtargid=
=3Dpla-440732566291&psc=3D1&tag=3D&ref=3D&adgrpid=3D62149806956&hvpone=3D&h=
vptwo=3D&hvadid=3D312106049007&hvpos=3D&hvnetw=3Dg&hvrand=3D688972830329540=
0308&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=3D&hvlocphy=3D1014019&hvtargid=
=3Dpla-440732566291
>
> It held up for quite a few years, until I got a chance to put inserts
> in; but, 300degF may not be enough for exhaust proximity. It's an epoxy,
> like JB Weld, but it uses (your) bolt to form threads, and a 'release
> agent' to keep the bolt/stud from being glued in. I can't say for sure,
> but my gut feeling is an epoxy would gum up a tap.
>
> Bob
>
> On 2/27/2021 8:25 PM, Alan Seigrist via Healeys wrote:
> > All -
> >
> > One of the three holes at the bottom of my exhaust header is loose and
> > the stud doesn't seat properly (but it does screw in).
> >
> > I was thinking of putting some "thermosteel" or JB "extreme heat" in
> > there then tapping it out.
> >
> > The threads are still there and it just needs a bit of fill to tighten
> > it up.
> >
> > Has anyone ever done a similar repair? Will it last?
> >
> > Alan
> >
>
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<div dir=3D"ltr">Bill -<div><br></div><div>One question - the hole goes fro=
m one end to the other on the flange of the exhaust manifold, so do I set t=
he coil with some high strength threadlocker?</div><div><br></div><div>Best=
,</div><div><br></div><div>Alan</div></div><br><div class=3D"gmail_quote"><=
div dir=3D"ltr" class=3D"gmail_attr">On Sun, Feb 28, 2021 at 1:21 PM WILLIA=
M B LAWRENCE via Healeys <<a href=3D"mailto:healeys@autox.team.net";>heal=
eys@autox.team.net</a>> 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>
<div>I doubt there is anything non-metallic that will stand up to the heat =
that close to the exhaust valves. Sounds like a job for a helicoil.</div>
<div><br>
</div>
<div>Bill Lawrence</div>
<div>BN1 #554</div>
<hr style=3D"display:inline-block;width:98%">
<div id=3D"gmail-m_-256882127623756149divRplyFwdMsg" dir=3D"ltr"><font face=
=3D"Calibri, sans-serif" style=3D"font-size:11pt" color=3D"#000000"><b>From=
:</b> Healeys <<a href=3D"mailto:healeys-bounces@autox.team.net"; target=
=3D"_blank">healeys-bounces@autox.team.net</a>> on behalf of Bob Spidell=
via Healeys <<a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank=
">healeys@autox.team.net</a>><br>
<b>Sent:</b> Sunday, February 28, 2021 5:06 AM<br>
<b>To:</b> <a href=3D"mailto:healeys@autox.team.net"; target=3D"_blank">heal=
eys@autox.team.net</a> <<a href=3D"mailto:healeys@autox.team.net"; target=
=3D"_blank">healeys@autox.team.net</a>><br>
<b>Subject:</b> Re: [Healeys] Exhaust header stud fix ?</font>
<div>=C2=A0</div>
</div>
<div><font size=3D"2"><span style=3D"font-size:11pt">
<div>I used this stuff once to bolster the threads in a bellhousing slave
<br>
cylinder mount:<br>
<br>
<a>https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000W=
SEUII/ref=3Dasc_df_B000WSEUII/?tag=3Dhyprod-20&linkCode=3Ddf0&hvadi=
d=3D312106049007&hvpos=3D&hvnetw=3Dg&hvrand=3D68897283032954003=
08&hvpone=3D&hvptwo=3D&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&a=
mp;hvlocint=3D&hvlocphy=3D1014019&hvtargid=3Dpla-440732566291&p=
sc=3D1&tag=3D&ref=3D&adgrpid=3D62149806956&hvpone=3D&hv=
ptwo=3D&hvadid=3D312106049007&hvpos=3D&hvnetw=3Dg&hvrand=3D=
6889728303295400308&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=
=3D&hvlocphy=3D1014019&hvtargid=3Dpla-440732566291</a><br>
<br>
It held up for quite a few years, until I got a chance to put inserts <br>
in; but, 300degF may not be enough for exhaust proximity. It's an epoxy=
, <br>
like JB Weld, but it uses (your) bolt to form threads, and a 'release <=
br>
agent' to keep the bolt/stud from being glued in. I can't say for s=
ure, <br>
but my gut feeling is an epoxy would gum up a tap.<br>
<br>
Bob<br>
<br>
On 2/27/2021 8:25 PM, Alan Seigrist via Healeys wrote:<br>
> All -<br>
><br>
> One of the three holes at the bottom of my exhaust=C2=A0header is loos=
e and <br>
> the stud doesn't seat properly (but it does screw in).<br>
><br>
> I was thinking of putting some "thermosteel" or JB "ext=
reme heat" in <br>
> there then tapping it out.<br>
><br>
> The threads are still there and it just needs a bit of fill to tighten=
<br>
> it up.<br>
><br>
> Has anyone ever done a similar repair?=C2=A0 Will it last?<br>
><br>
> Alan<br>
><br>
<br>
_______________________________________________<br>
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