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Drill out and install a Helicoil We do it all the time.=20
David Nock
Sent from my iPhone
> On Feb 27, 2021, at 9:21 PM, WILLIAM B LAWRENCE via Healeys <healeys@autox=
.team.net> wrote:
>=20
> =EF=BB=BF
> 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.
>=20
> Bill Lawrence
> BN1 #554
> From: Healeys <healeys-bounces@autox.team.net> on behalf of Bob Spidell vi=
a 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 ?
> =20
> I used this stuff once to bolster the threads in a bellhousing slave=20
> cylinder mount:
>=20
> https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WSE=
UII/ref=3Dasc_df_B000WSEUII/?tag=3Dhyprod-20&linkCode=3Ddf0&hvadid=3D3121060=
49007&hvpos=3D&hvnetw=3Dg&hvrand=3D6889728303295400308&hvpone=3D&hvptwo=3D&h=
vqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=3D&hvlocphy=3D1014019&hvtargid=3Dpla-=
440732566291&psc=3D1&tag=3D&ref=3D&adgrpid=3D62149806956&hvpone=3D&hvptwo=3D=
&hvadid=3D312106049007&hvpos=3D&hvnetw=3Dg&hvrand=3D6889728303295400308&hvqm=
t=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=3D&hvlocphy=3D1014019&hvtargid=3Dpla-440=
732566291
>=20
> It held up for quite a few years, until I got a chance to put inserts=20
> in; but, 300degF may not be enough for exhaust proximity. It's an epoxy,=20=
> like JB Weld, but it uses (your) bolt to form threads, and a 'release=20
> agent' to keep the bolt/stud from being glued in. I can't say for sure,=20=
> but my gut feeling is an epoxy would gum up a tap.
>=20
> Bob
>=20
> 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=20=
> > the stud doesn't seat properly (but it does screw in).
> >
> > I was thinking of putting some "thermosteel" or JB "extreme heat" in=20
> > there then tapping it out.
> >
> > The threads are still there and it just needs a bit of fill to tighten=20=
> > it up.
> >
> > Has anyone ever done a similar repair? Will it last?
> >
> > Alan
> >
>=20
> _______________________________________________
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>=20
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>=20
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>=20
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>=20
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>=20
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>=20
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>=20
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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">Drill out and install a Helicoil We d=
o it all the time. <br><br><div dir=3D"ltr"><div>David Nock</div><div><=
br></div>Sent from my iPhone</div><div dir=3D"ltr"><br><blockquote type=3D"c=
ite">On Feb 27, 2021, at 9:21 PM, WILLIAM B LAWRENCE via Healeys <healeys=
@autox.team.net> wrote:<br><br></blockquote></div><blockquote type=3D"cit=
e"><div dir=3D"ltr">=EF=BB=BF
<meta http-equiv=3D"Content-Type" content=3D"text/html; charset=3Dus-ascii">=
<div>I doubt there is anything non-metallic that will stand up to the heat t=
hat 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%" tabindex=3D"-1">
<div id=3D"divRplyFwdMsg" dir=3D"ltr"><font face=3D"Calibri, sans-serif" sty=
le=3D"font-size:11pt" color=3D"#000000"><b>From:</b> Healeys <healeys-bou=
nces@autox.team.net> on behalf of Bob Spidell via Healeys <healeys@aut=
ox.team.net><br>
<b>Sent:</b> Sunday, February 28, 2021 5:06 AM<br>
<b>To:</b> healeys@autox.team.net <healeys@autox.team.net><br>
<b>Subject:</b> Re: [Healeys] Exhaust header stud fix ?</font>
<div> </div>
</div>
<div class=3D"BodyFragment"><font size=3D"2"><span style=3D"font-size:11pt;"=
>
<div class=3D"PlainText">I used this stuff once to bolster the threads in a b=
ellhousing slave
<br>
cylinder mount:<br>
<br>
<a>https://www.amazon.com/Loctite-442-28654-4-80ml-Thread-Stripped/dp/B000WS=
EUII/ref=3Dasc_df_B000WSEUII/?tag=3Dhyprod-20&linkCode=3Ddf0&hvadid=3D=
312106049007&hvpos=3D&hvnetw=3Dg&hvrand=3D6889728303295400308&am=
p;hvpone=3D&hvptwo=3D&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvl=
ocint=3D&hvlocphy=3D1014019&hvtargid=3Dpla-440732566291&psc=3D1&=
amp;tag=3D&ref=3D&adgrpid=3D62149806956&hvpone=3D&hvptwo=3D&=
amp;hvadid=3D312106049007&hvpos=3D&hvnetw=3Dg&hvrand=3D688972830=
3295400308&hvqmt=3D&hvdev=3Dc&hvdvcmdl=3D&hvlocint=3D&hv=
locphy=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 sure, <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 header is loose=
and <br>
> the stud doesn't seat properly (but it does screw in).<br>
><br>
> I was thinking of putting some "thermosteel" or JB "extreme heat" in <b=
r>
> 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? Will it last?<br>
><br>
> Alan<br>
><br>
<br>
_______________________________________________<br>
.net/donate.html</a><br>
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Archive: <a href=3D"http://www.team.net/pipermail/healeys";>http://www.team.n=
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