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I had a catastrophic driveline failure on a TR3 a few years back =
=E2=80=93 ring and pinion ate itself and locked up.. transmission ate =
2nd gear on main and layshaft and=E2=80=A6=E2=80=A6.front main bearing =
bolt on manifold side of motor sheared. This in turn cracked the block =
vertically between the hole for the main bolt and the front manifold =
side stud. I imagine the entire driveline being =
=E2=80=9Cwhipped=E2=80=9D from rear to front.
=20
Even though we were able to get the broken bolt extracted, the block was =
junk. =20
=20
Similar thing happed (motor only) on a friends TR2 powered Morgan. Ken =
Gillanders was able to salvage that one.
=20
From: Triumphs <triumphs-bounces@autox.team.net> On Behalf Of Dave =
Connitt
Sent: Monday, December 13, 2021 2:27 AM
To: Guy Huggins <guy.huggins@icloud.com>
Cc: Triumph Mailing List <triumphs@autox.team.net>
Subject: Re: [TR] 1965 TR4A - Looking to drill out a stud hole in block. =
Need recommendations on a drill guide/jig.
=20
Hello Guy,
That is a tough one. Have you considered talking this over with the =
machinist 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 =
=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 one 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 with the block, but it wiggles like hell.
As you tighten the stud down further, 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 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 =
the drilling phase.
I know better than to attempt drilling out cast iron without a steadying =
device 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,
Guy D. Huggins
817.454.6415
=20
=20
=20
=20
Archive: http://www.team.net/pipermail/triumphs =
http://autox.team.net/mailman/options/triumphs/dconnitt@fuse.net
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vlink=3Dpurple style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal>I had a catastrophic driveline =
failure on a TR3 a few years back =E2=80=93 ring and pinion ate itself =
and locked up.. transmission ate 2<sup>nd</sup> gear on main and =
layshaft and=E2=80=A6=E2=80=A6.front main bearing bolt on manifold side =
of motor sheared.=C2=A0 This in turn cracked the block vertically =
between the hole for the main bolt and the front manifold side =
stud.=C2=A0 I imagine the entire driveline being =
=E2=80=9Cwhipped=E2=80=9D from rear to front.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Even though =
we were able to get the broken bolt extracted, the block was junk.=C2=A0 =
<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal>Similar thing happed (motor only) on a friends TR2 =
powered Morgan.=C2=A0 Ken Gillanders was able to salvage that =
one.<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><div><div =
style=3D'border:none;border-top:solid #E1E1E1 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b>From:</b> Triumphs =
<triumphs-bounces@autox.team.net> <b>On Behalf Of </b>Dave =
Connitt<br><b>Sent:</b> Monday, December 13, 2021 2:27 AM<br><b>To:</b> =
Guy Huggins <guy.huggins@icloud.com><br><b>Cc:</b> Triumph Mailing =
List <triumphs@autox.team.net><br><b>Subject:</b> Re: [TR] 1965 =
TR4A - Looking to drill out a stud hole in block. Need recommendations =
on a drill guide/jig.<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Hello =
Guy,<o:p></o:p></p><div><p class=3DMsoNormal>That is a tough one. Have =
you considered talking this over with the machinist 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. <o:p></o:p></p></div><div><p =
class=3DMsoNormal>Best of luck to you.<o:p></o:p></p></div><div><p =
class=3DMsoNormal style=3D'margin-bottom:12.0pt'>Dave =
Connitt <o:p></o:p></p><div><p class=3DMsoNormal>Sent from my =
iPhone<o:p></o:p></p></div><div><p =
class=3DMsoNormal><br><br><o:p></o:p></p><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>On Dec 11, 2021, at 6:35 PM, Guy Huggins =
<<a =
href=3D"mailto:guy.huggins@icloud.com";>guy.huggins@icloud.com</a>> =
wrote:<o:p></o:p></p></blockquote></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal>=EF=BB=BFHowdy All,<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>As part the head gasket replacement project, I need to =
address a wallowed-out and stripped cylinder head stud hole in the =
block.<o:p></o:p></p></div><div><p class=3DMsoNormal>(If you were =
standing on the manifold side of the engine, it would be the one =
furtherest to the front, on the manifold =
side.)<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p class=3DMsoNormal>A =
stud goes in straight up and down until the top of the threads are even =
with the block, but it wiggles like hell.<o:p></o:p></p></div><div><p =
class=3DMsoNormal>As you tighten the stud down further, the wiggle =
starts to go away, but the whole thing starts to cant back toward the =
rear of the block.<o:p></o:p></p></div><div><p class=3DMsoNormal>This =
make it impossible to slide the head down over the canted =
stud.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>To fix this I intend to install a coiled insert. =
(drill just 1/32=E2=80=9D oversized, tap, install =
insert).<o:p></o:p></p></div><div><p class=3DMsoNormal>I am hoping that =
someone from the list knows of a drilling jig/guide for the drilling =
phase.<o:p></o:p></p></div><div><p class=3DMsoNormal>I know better than =
to attempt drilling out cast iron without a steadying device of some =
sort.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>Any and all tips and advice are =
welcome.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>The hole is 1 5/16=E2=80=9D deep, and the threads of =
the stud measure 3/4=E2=80=9D.<o:p></o:p></p></div><div><p =
class=3DMsoNormal>It is basically threaded top to =
bottom.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>Thanks in advance.<o:p></o:p></p></div><div><p =
class=3DMsoNormal>I hate it when you have to fix the unknown thing to =
fix the known thing.<o:p></o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><div><div><div><div><p =
class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Helvetica",sans-serif;color:black'=
>Kind Regards,<br><br>Guy D. Huggins<br><a =
href=3D"mailto:guy.huggins@icloud.com";>guy.huggins@icloud.com</a><br>817.=
454.6415<o:p></o:p></span></p></div><div><p class=3DMsoNormal><span =
style=3D'font-size:10.5pt;font-family:"Helvetica",sans-serif;color:black'=
><o:p> </o:p></span></p></div><p class=3DMsoNormal><span =
style=3D'color:black'><o:p> </o:p></span></p></div></div><p =
class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'><o:p> </o:p></p></div><p =
class=3DMsoNormal><o:p> </o:p></p></div><p class=3DMsoNormal>** <a =
href=3D"mailto:triumphs@autox.team.net";>triumphs@autox.team.net</a> =
**<br><br>Donate: <a =
href=3D"http://www.team.net/donate.html";>http://www.team.net/donate.html<=
/a><br>Archive: <a =
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mail/triumphs</a> <a =
href=3D"http://www.team.net/archive";>http://www.team.net/archive</a><br><=
br>Unsubscribe/Manage: <a =
href=3D"http://autox.team.net/mailman/options/triumphs/dconnitt@fuse.net"=
>http://autox.team.net/mailman/options/triumphs/dconnitt@fuse.net</a><o:p=
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