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Re: [TR] 1965 TR4A - Looking to drill out a stud hole in block. Need rec

To: Guy Huggins <guy.huggins@icloud.com>
Subject: Re: [TR] 1965 TR4A - Looking to drill out a stud hole in block. Need recommendations on a drill guide/jig.
From: Dave Connitt <dconnitt@fuse.net>
Date: Mon, 13 Dec 2021 05:26:39 -0500
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Hello Guy,
That is a tough one. Have you considered talking this over with  the machini=
st that did your cylinder head as he may have come across this type of issue=
 before. I agree with you that locating and holding the X, Y and Z positions=
 of the repair is critical.=20
Best of luck to you.
Dave Connitt=20

Sent from my iPhone

> On Dec 11, 2021, at 6:35 PM, Guy Huggins <guy.huggins@icloud.com> wrote:
>=20
> =EF=BB=BFHowdy All,
>=20
> As part the head gasket replacement project, I need to address a wallowed-=
out and stripped cylinder head stud hole in the block.
> (If you were standing on the manifold side of the engine, it would be the o=
ne furtherest to the front, on the manifold side.)
>=20
> A stud goes in straight up and down until the top of the threads are even w=
ith the block, but it wiggles like hell.
> As you tighten the stud down further, the wiggle starts to go away, but th=
e whole thing starts to cant back toward the rear of the block.
> This make it impossible to slide the head down over the canted stud.
>=20
> To fix this I intend to install a coiled insert.  (drill just 1/32=E2=80=9D=
 oversized, tap, install insert).
> I am hoping that someone from the list knows of a drilling jig/guide for t=
he drilling phase.
> I know better than to attempt drilling out cast iron without a steadying d=
evice of some sort.
>=20
> Any and all tips and advice are welcome.
>=20
> The hole is 1 5/16=E2=80=9D deep, and the threads of the stud measure 3/4=E2=
=80=9D.
> It is basically threaded top to bottom.
>=20
> Thanks in advance.
> I hate it when you have to fix the unknown thing to fix the known thing.
>=20
>=20
> Kind Regards,
>=20
> Guy D. Huggins
> guy.huggins@icloud.com
> 817.454.6415
>=20
>=20
>=20
>=20
>=20
> ** triumphs@autox.team.net **
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/triumphs  http://www.team.net/archi=
ve
>=20
> Unsubscribe/Manage: http://autox.team.net/mailman/options/triumphs/dconnit=
t@fuse.net

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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">Hello Guy,<div>That is a tough one. Have yo=
u considered talking this over with &nbsp;the machinist that did your cylind=
er head as he may have come across this type of issue before. I agree with y=
ou that locating and holding the X, Y and Z positions of the repair is criti=
cal.&nbsp;</div><div>Best of luck to you.</div><div>Dave Connitt&nbsp;<br><b=
r><div dir=3D"ltr">Sent from my iPhone</div><div dir=3D"ltr"><br><blockquote=
 type=3D"cite">On Dec 11, 2021, at 6:35 PM, Guy Huggins &lt;guy.huggins@iclo=
ud.com&gt; wrote:<br><br></blockquote></div><blockquote type=3D"cite"><div d=
ir=3D"ltr">=EF=BB=BF<meta http-equiv=3D"Content-Type" content=3D"text/html; c=
harset=3Dutf-8">Howdy All,<div class=3D""><br class=3D""></div><div class=3D=
"">As part the head gasket replacement project, I need to address a wallowed=
-out and stripped cylinder head stud hole in the block.</div><div class=3D""=
>(If you were standing on the manifold side of the engine, it would be the o=
ne furtherest to the front, on the manifold side.)</div><div class=3D""><br c=
lass=3D""></div><div class=3D"">A stud goes in straight up and down until th=
e top of the threads are even with the block, but it wiggles like hell.</div=
><div class=3D"">As you tighten the stud down further, the wiggle starts to g=
o away, but the whole thing starts to cant back toward the rear of the block=
.</div><div class=3D"">This make it impossible to slide the head down over t=
he canted stud.</div><div class=3D""><br class=3D""></div><div class=3D"">To=
 fix this I intend to install a coiled insert. &nbsp;(drill just 1/32=E2=80=9D=
 oversized, tap, install insert).</div><div class=3D"">I am hoping that some=
one from the list knows of a drilling jig/guide for the drilling phase.</div=
><div class=3D"">I know better than to attempt drilling out cast iron withou=
t a steadying device of some sort.</div><div class=3D""><br class=3D""></div=
><div class=3D"">Any and all tips and advice are welcome.</div><div class=3D=
""><br class=3D""></div><div class=3D"">The hole is 1 5/16=E2=80=9D deep, an=
d the threads of the stud measure 3/4=E2=80=9D.</div><div class=3D"">It is b=
asically threaded top to bottom.</div><div class=3D""><br class=3D""></div><=
div class=3D"">Thanks in advance.</div><div class=3D"">I hate it when you ha=
ve to fix the unknown thing to fix the known thing.</div><div class=3D""><br=
 class=3D""></div><div class=3D""><br class=3D""></div><div class=3D""><div c=
lass=3D"">
<div style=3D"color: rgb(0, 0, 0); letter-spacing: normal; text-align: start=
; text-indent: 0px; text-transform: none; white-space: normal; word-spacing:=
 0px; -webkit-text-stroke-width: 0px; word-wrap: break-word; -webkit-nbsp-mo=
de: space; line-break: after-white-space;" class=3D""><div style=3D"word-wra=
p: break-word; -webkit-nbsp-mode: space; line-break: after-white-space;" cla=
ss=3D""><div style=3D"color: rgb(0, 0, 0); font-family: Helvetica; font-size=
: 14px; font-style: normal; font-variant-caps: normal; font-weight: normal; l=
etter-spacing: normal; text-align: start; text-indent: 0px; text-transform: n=
one; white-space: normal; word-spacing: 0px; -webkit-text-stroke-width: 0px;=
">Kind Regards,<br class=3D""><br class=3D"">Guy D. Huggins<br class=3D""><a=
 href=3D"mailto:guy.huggins@icloud.com"; class=3D"">guy.huggins@icloud.com</a=
><br class=3D"">817.454.6415</div><div style=3D"color: rgb(0, 0, 0); font-fa=
mily: Helvetica; font-size: 14px; font-style: normal; font-variant-caps: nor=
mal; font-weight: normal; letter-spacing: normal; text-align: start; text-in=
dent: 0px; text-transform: none; white-space: normal; word-spacing: 0px; -we=
bkit-text-stroke-width: 0px;" class=3D""><br class=3D""></div><br class=3D"A=
pple-interchange-newline"></div></div><br class=3D"Apple-interchange-newline=
"><br class=3D"Apple-interchange-newline">
</div>
<br class=3D""></div><span>** triumphs@autox.team.net **</span><br><span></s=
pan><br><span>Donate: http://www.team.net/donate.html</span><br><span>Archiv=
e: http://www.team.net/pipermail/triumphs &nbsp;http://www.team.net/archive<=
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ailman/options/triumphs/dconnitt@fuse.net</span><br></div></blockquote></div=
></body></html>=

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