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Yes, they did.=C2=A0 Plus the steel studs in an aluminum head on an engine=
notorious for leaky head gaskets can make for a very difficult head remova=
l.=C2=A0 The Wedge club has a special tool to assist in head removal if any=
one encounters this issue.=C2=A0 Yet another reason to join.
Back to our regularly scheduled program.
Drilling the hole true (90 deg) is important but more so is getting the tap=
started true.=C2=A0 I typically use a tap guide.=C2=A0 This is an aluminum=
block with critically sized holes drilled true (using a drill press) that =
will keep the tap aligned whilst getting started.=C2=A0 Square tubing can a=
lso be used.
=20
Dave=20
=20
=20
-----Original Message-----
From: David P <frogeye@porterscustom.com>
To: triumphs@autox.team.net
Sent: Mon, Dec 13, 2021 8:42 am
Subject: Re: [TR] 1965 TR4A - Looking to drill out a stud hole in block. Ne=
ed recommendations on a drill guide/jig.
... my recollection is waning, but did not the TR7 block have purposely ca=
nted head studs that had to be removed/inserted individually? Anyone?=C2=A0=
dp=20
On 12/13/2021 7:08 AM, Randy and Valerie DeRuiter wrote:
=20
=20
#yiv5394862257 P {margin-top:0;margin-bottom:0;} Guy- =20
I don't want to sound too doom and gloomy, but have you ruled out a crac=
ked block at that location?=C2=A0 That is a common spot for one, usually fr=
om someone in the past who pulled the engine by the studs. At least I had a=
n engine like that.=C2=A0 If you haven't done so, take a very good look at =
the inside edge of the threaded hole.=C2=A0 If you see a crack, that helico=
il trick likely won't work. =20
If you are convinced it is not cracked, possibly another solution would =
be to take advantage of the deeper hole that you've measured and get a shop=
to extend the threads of a longer head bolt.=C2=A0 One of the inside longe=
r ones might work - then shorten the other end to fit.=C2=A0 The puzzling p=
art is why does the stud cant to the rear - that doesn't sound good. =20
Randy =20
From: Triumphs <triumphs-bounces@autox.team.net> on behalf of Guy Huggin=
s <guy.huggins@icloud.com>
Sent: Saturday, December 11, 2021 5:28 PM
To: Triumph Mailing List <triumphs@autox.team.net>
Subject: [TR] 1965 TR4A - Looking to drill out a stud hole in block. Need =
recommendations on a drill guide/jig. =C2=A0 Howdy 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 standi=
ng on the manifold side of the engine, it would be the one furtherest to th=
e front, on the manifold side.)=20
A stud goes in straight up and down until the top of the threads are even=
with the block, but it wiggles like hell. As you tighten the stud down fur=
ther, the wiggle starts to go away, but the whole thing starts to cant back=
toward the rear of the block. This make it impossible to slide the head do=
wn over the canted stud.=20
To fix this I intend to install a coiled insert. =C2=A0(drill just 1/32=
=E2=80=9D oversized, tap, install insert). I am hoping that someone from th=
e list knows of a drilling jig/guide for the drilling phase. I know better =
than to attempt drilling out cast iron without a steadying device of some s=
ort.=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 fi=
x the known thing.=20
=20
Kind Regards,
=20
Guy D. Huggins
guy.huggins@icloud.com
817.454.6415 =20
=20
=20
=20
=20
=20
=20
** triumphs@autox.team.net **Donate: http://www.team.net/donate.htmlArchive=
: http://www.team.net/pipermail/triumphs http://www.team.net/archiveUnsubsc=
ribe/Manage: http://autox.team.net/mailman/options/triumphs/frogeye@porters=
custom.com --=20
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My Wo=
rld go here: WWW.PORTERBIKES.COM/ ** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archiv=
e
sey@cs.com
------=_Part_518493_357114620.1639408165845
Content-Transfer-Encoding: quoted-printable
<div style=3D"color:black;font: 12pt Arial, Helvetica, sans-serif;">
<div> <font size=3D"3">Yes, they did. Plus the steel studs in an alum=
inum head on an engine notorious for leaky head gaskets can make for a very=
difficult head removal. The Wedge club has a special tool to assist =
in head removal if anyone encounters this issue. Yet another reason t=
o join.</font></div>
<div><br>
</div>
<div><font size=3D"3">Back to our regularly scheduled program.</font></div>
<div><br>
</div>
<div><font size=3D"3">Drilling the hole true (90 deg) is important but more=
so is getting the tap started true. I typically use a tap guide.&nbs=
p; This is an aluminum block with critically sized holes drilled true (usin=
g a drill press) that will keep the tap aligned whilst getting started.&nbs=
p; Square tubing can also be used.</font><br>
</div>
<div> <br>
</div>
<div style=3D"clear:both"><font size=3D"4">Dave </font><br>
<br>
</div>
<div> <br>
</div>
<div> <br>
</div>
<div style=3D"font-family:arial,helvetica;font-size:10pt;color:black"><font=
size=3D"2">-----Original Message-----<br>
From: David P <frogeye@porterscustom.com><br>
To: triumphs@autox.team.net<br>
Sent: Mon, Dec 13, 2021 8:42 am<br>
Subject: Re: [TR] 1965 TR4A - Looking to drill out a stud hole in block. Ne=
ed recommendations on a drill guide/jig.<br>
<br>
<div id=3D"yiv5394862257">
<div>
=20
<div>... my recollection is waning, but did not the TR7 block have
purposely canted head studs that had to be removed/inserted
individually? Anyone? dp <br clear=3D"none">
</div>
=20
<div id=3D"yiv5394862257yqtfd36688" class=3D"yiv5394862257yqt7812892194">
<div class=3D"yiv5394862257moz-cite-prefix">On 12/13/2021 7:08 AM, Randy an=
d
Valerie DeRuiter wrote:<br clear=3D"none">
</div>
<blockquote type=3D"cite">
</blockquote></div>
</div>
<div id=3D"yiv5394862257yqtfd19287" class=3D"yiv5394862257yqt7812892194"><s=
tyle type=3D"text/css">#yiv5394862257 P {margin-top:0;margin-bottom:0;}</st=
yle></div>
<div>
<div id=3D"yiv5394862257yqtfd93698" class=3D"yiv5394862257yqt7812892194">
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0, 0, 0);">
Guy-</div>
=20
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0, 0, 0);">
<br clear=3D"none">
</div>
=20
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0, 0, 0);">
I don't want to sound too doom and gloomy, but have you ruled
out a cracked block at that location? That is a common spot f=
or
one, usually from someone in the past who pulled the engine by
the studs. At least I had an engine like that. If you haven't
done so, take a very good look at the inside edge of the
threaded hole. If you see a crack, that helicoil trick likely
won't work.</div>
=20
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0, 0, 0);">
<br clear=3D"none">
</div>
=20
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0, 0, 0);">
If you are convinced it is not cracked, possibly another
solution would be to take advantage of the deeper hole that
you've measured and get a shop to extend the threads of a longer
head bolt. One of the inside longer ones might work - then
shorten the other end to fit. The puzzling part is why does t=
he
stud cant to the rear - that doesn't sound good.</div>
=20
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0, 0, 0);">
<br clear=3D"none">
</div>
=20
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0, 0, 0);">
Randy</div>
=20
<div>
=20
<div style=3D"font-family:Calibri, Helvetica, sans-serif;font-size:12pt;col=
or:rgb(0,0,0);">
<br clear=3D"none">
</div>
<hr tabindex=3D"-1" style=3D"display:inline-block;width:98%;">
=20
<div dir=3D"ltr" id=3D"yiv5394862257divRplyFwdMsg"><font style=3D"font-size=
:11pt;" face=3D"Calibri, sans-serif" color=3D"#000000"><b>From:</b>
Triumphs <a rel=3D"nofollow noopener noreferrer" shape=3D"rect"=
ymailto=3D"mailto:triumphs-bounces@autox.team.net"; target=3D"_blank" href=
=3D"mailto:triumphs-bounces@autox.team.net"; class=3D"yiv5394862257moz-txt-l=
ink-rfc2396E"><triumphs-bounces@autox.team.net></a> on behalf
of Guy Huggins <a rel=3D"nofollow noopener noreferrer" shape=3D=
"rect" ymailto=3D"mailto:guy.huggins@icloud.com"; target=3D"_blank" href=3D"=
mailto:guy.huggins@icloud.com"; class=3D"yiv5394862257moz-txt-link-rfc2396E"=
><guy.huggins@icloud.com></a><br clear=3D"none">
<b>Sent:</b> Saturday, December 11, 2021 5:28 PM<br clear=3D"no=
ne">
<b>To:</b> Triumph Mailing List
<a rel=3D"nofollow noopener noreferrer" shape=3D"rect" ymailto=
=3D"mailto:triumphs@autox.team.net"; target=3D"_blank" href=3D"mailto:triump=
hs@autox.team.net" class=3D"yiv5394862257moz-txt-link-rfc2396E"><triumph=
s@autox.team.net></a><br clear=3D"none">
<b>Subject:</b> [TR] 1965 TR4A - Looking to drill out a stud
hole in block. Need recommendations on a drill guide/jig.</font=
>
=20
<div> </div>
</div>
=20
<div style=3D"word-wrap:break-word;" class=3D"yiv5394862257">Howdy All,
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257">As part the head gasket replacement project, I
need to address a wallowed-out and stripped cylinder head
stud hole in the block.</div>
=20
<div class=3D"yiv5394862257">(If you were standing on the manifold side of
the engine, it would be the one furtherest to the front, on
the manifold side.)</div>
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257">A stud goes in straight up and down until the
top of the threads are even with the block, but it wiggles
like hell.</div>
=20
<div class=3D"yiv5394862257">As you tighten the stud down further, the wigg=
le
starts to go away, but the whole thing starts to cant back
toward the rear of the block.</div>
=20
<div class=3D"yiv5394862257">This make it impossible to slide the head down
over the canted stud.</div>
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257">To fix this I intend to install a coiled inser=
t.
(drill just 1/32=E2=80=9D oversized, tap, install insert)=
.</div>
=20
<div class=3D"yiv5394862257">I am hoping that someone from the list knows o=
f
a drilling jig/guide for the drilling phase.</div>
=20
<div class=3D"yiv5394862257">I know better than to attempt drilling out cas=
t
iron without a steadying device of some sort.</div>
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257">Any and all tips and advice are welcome.</div>
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257">The hole is 1 5/16=E2=80=9D deep, and the thre=
ads of the
stud measure 3/4=E2=80=9D.</div>
=20
<div class=3D"yiv5394862257">It is basically threaded top to bottom.</div>
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257">Thanks in advance.</div>
=20
<div class=3D"yiv5394862257">I hate it when you have to fix the unknown thi=
ng
to fix the known thing.</div>
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257"><br class=3D"yiv5394862257" clear=3D"none">
</div>
=20
<div class=3D"yiv5394862257">
=20
<div class=3D"yiv5394862257">
=20
<div style=3D"color:rgb(0,0,0);letter-spacing:normal;text-indent:0px;text-t=
ransform:none;white-space:normal;word-spacing:0px;word-wrap:break-word;" cl=
ass=3D"yiv5394862257">
=20
<div style=3D"word-wrap:break-word;" class=3D"yiv5394862257">
=20
<div style=3D"color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-st=
yle:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-tr=
ansform:none;white-space:normal;word-spacing:0px;">
Kind Regards,<br class=3D"yiv5394862257" clear=3D"none"=
>
<br class=3D"yiv5394862257" clear=3D"none">
Guy D. Huggins<br class=3D"yiv5394862257" clear=3D"none=
">
<a rel=3D"nofollow noopener noreferrer" shape=3D"rect" =
ymailto=3D"mailto:guy.huggins@icloud.com"; target=3D"_blank" href=3D"mailto:=
guy.huggins@icloud.com" class=3D"yiv5394862257moz-txt-link-freetext">guy.hu=
ggins@icloud.com</a><br class=3D"yiv5394862257" clear=3D"none">
817.454.6415</div>
=20
<div style=3D"color:rgb(0,0,0);font-family:Helvetica;font-size:14px;font-st=
yle:normal;font-weight:normal;letter-spacing:normal;text-indent:0px;text-tr=
ansform:none;white-space:normal;word-spacing:0px;" class=3D"yiv5394862257">
<br class=3D"yiv5394862257" clear=3D"none">
</div>
<br class=3D"yiv5394862257x_Apple-interchange-newline" cl=
ear=3D"none">
</div>
</div>
<br class=3D"yiv5394862257x_Apple-interchange-newline" clear=
=3D"none">
<br class=3D"yiv5394862257x_Apple-interchange-newline" clear=
=3D"none">
</div>
<br class=3D"yiv5394862257" clear=3D"none">
</div>
</div>
</div>
<br clear=3D"none">
<fieldset class=3D"yiv5394862257moz-mime-attachment-header"></fieldse=
t>
</div>
<pre class=3D"yiv5394862257moz-quote-pre">
<div id=3D"yiv5394862257yqtfd01388" class=3D"yiv5394862257yqt7812892194">**=
<a rel=3D"nofollow noopener noreferrer" shape=3D"rect" ymailto=3D"mailto:t=
riumphs@autox.team.net" target=3D"_blank" href=3D"mailto:triumphs@autox.tea=
m.net" class=3D"yiv5394862257moz-txt-link-abbreviated">triumphs@autox.team.=
net</a> **
lank" href=3D"http://www.team.net/donate.html"; class=3D"yiv5394862257moz-tx=
t-link-freetext">http://www.team.net/donate.html</a>
Archive: <a rel=3D"nofollow noopener noreferrer" shape=3D"rect" target=3D"_=
blank" href=3D"http://www.team.net/pipermail/triumphs"; class=3D"yiv53948622=
57moz-txt-link-freetext">http://www.team.net/pipermail/triumphs</a> <a rel=
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ef=3D"http://autox.team.net/mailman/options/triumphs/frogeye@porterscustom.=
com" class=3D"yiv5394862257moz-txt-link-freetext">http://autox.team.net/mai=
lman/options/triumphs/frogeye@porterscustom.com</a>
</pre>
=20
<pre class=3D"yiv5394862257moz-signature">--=20
Porter Custom Bicycles 2909 Arno St. NE Albuquerque, NM. 505-352-1378 My Wo=
rld go here: <a rel=3D"nofollow noopener noreferrer" shape=3D"rect" target=
=3D"_blank" href=3D"http://www.porterbikes.com/"; class=3D"yiv5394862257moz-=
txt-link-abbreviated">WWW.PORTERBIKES.COM/</a></pre>
<div id=3D"yiv5394862257yqtfd83093" class=3D"yiv5394862257yqt7812892194">
</div>
</div>
</div>
<div class=3D"yqt7812892194" id=3D"yqtfd76803">** <a shape=3D"rect" ymailto=
=3D"mailto:triumphs@autox.team.net"; href=3D"mailto:triumphs@autox.team.net"=
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y@cs.com</a><br clear=3D"none"></div>
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
--===============8857874587289347953==--
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