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Interesting, John. I would have said the opposite. Pipe threads =
generally need sealant, I thought. I use TPFE pipe dope and stay away =
from the tape where passages may get fouled by little strings that tear =
off (thank you Randall, may you rest in peace). I have had issues with =
new petcocks leaking which I solved by taking them apart, cleaning the =
bore really well and then polishing the cone. I seem to remember I put =
it in the drill press and used 2000 grit wet sand paper to achieve a =
very smooth surface. So far, so good.
=20
Bob
=20
From: Triumphs [mailto:triumphs-bounces@autox.team.net] On Behalf Of =
John Linney
Sent: Sunday, September 13, 2020 12:30 PM
To: David Friedlander
Cc: TR3 Triumphs; New England Triumphs
Subject: Re: [TR] Small coolant leak
=20
Correct. I put the pipe thread sealant in the bore of the valve spigot. =
The threads don=E2=80=99t need sealant.
On Sep 13, 2020, at 12:22 PM, David Friedlander <forzion7@gmail.com> =
wrote:
=EF=BB=BF
But, John, it's not the threaded portion that leaks.... No threads on =
stem of the petcock. Seems to me, like Tom said, these either stop =
leaking because they get full of crud or people just plug the hole. As =
it is, the valve is located just above the starter so that's where it =
drains! I'm guessing that if anyone wanted to drain their engine block, =
they'd just use the radiator petcock instead.
=20
Dave
=20
On Sun, Sep 13, 2020, 3:14 PM John Linney <john@linneyweb.com> wrote:
I went through 3 valves on my TR4. The final one got a seal using =
plumber=E2=80=99s pipe thread sealant.
Sent from my iPad
> On Sep 13, 2020, at 11:38 AM, David Friedlander <forzion7@gmail.com> =
wrote:
>=20
> =EF=BB=BF
> I have noticed a small coolant leak from my TR3 and have traced it to =
the handle assembly of the water drain tap on the side of the block. =
Anyone else had this issue? It's a new tap and don't know what the fix =
might be. It's not leaking from where the tap threads into the block... =
Thanks in advance for any BTDT advice...
>=20
> Dave
> ** triumphs@autox.team.net **
>=20
> Donate: http://www.team.net/donate.html
> Archive: http://www.team.net/pipermail/triumphs =
>=20
> Unsubscribe/Manage: =
http://autox.team.net/mailman/options/triumphs/john@linneyweb.com
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</o:shapelayout></xml><![endif]--></head><body lang=3DEN-US link=3Dblue =
vlink=3Dpurple><div class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Interesting, John. I would have said the opposite. Pipe threads =
generally need sealant, I thought. I use TPFE pipe dope and stay away =
from the tape where=C2=A0 passages may get fouled by little strings that =
tear off (thank you Randall, may you rest in peace). I have had issues =
with new petcocks leaking which I solved by taking them apart, cleaning =
the bore really well and then polishing the cone. I seem to remember I =
put it in the drill press and used 2000 grit wet sand paper to achieve a =
very smooth surface. So far, so good.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p> </o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'>Bob<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:11.0pt;font-family:"Calibri","sans-serif";color:#1F497=
D'><o:p> </o:p></span></p><div><div =
style=3D'border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0in =
0in 0in'><p class=3DMsoNormal><b><span =
style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'>From:</span>=
</b><span style=3D'font-size:10.0pt;font-family:"Tahoma","sans-serif"'> =
Triumphs [mailto:triumphs-bounces@autox.team.net] <b>On Behalf Of =
</b>John Linney<br><b>Sent:</b> Sunday, September 13, 2020 12:30 =
PM<br><b>To:</b> David Friedlander<br><b>Cc:</b> TR3 Triumphs; New =
England Triumphs<br><b>Subject:</b> Re: [TR] Small coolant =
leak<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>Correct. I =
put the pipe thread sealant in the bore of the valve spigot. The threads =
don=E2=80=99t need sealant.<o:p></o:p></p><div><p =
class=3DMsoNormal><br><br><o:p></o:p></p><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>On Sep 13, 2020, at 12:22 PM, David =
Friedlander <<a =
href=3D"mailto:forzion7@gmail.com";>forzion7@gmail.com</a>> =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'margin-top:5.0pt;margin-bottom:5.0pt'><div><p =
class=3DMsoNormal><span =
style=3D'font-family:"Tahoma","sans-serif"'>=EF=BB=BF</span><o:p></o:p></=
p><div><p class=3DMsoNormal>But, John, it's not the threaded portion =
that leaks.... No threads on stem of the petcock. Seems to me, like Tom =
said, these either stop leaking because they get full of crud or people =
just plug the hole. As it is, the valve is located just above the =
starter so that's where it drains! I'm guessing that if anyone wanted to =
drain their engine block, they'd just use the radiator petcock =
instead.<o:p></o:p></p><div><p =
class=3DMsoNormal><o:p> </o:p></p></div><div><p =
class=3DMsoNormal>Dave<o:p></o:p></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><div><div><p class=3DMsoNormal>On =
Sun, Sep 13, 2020, 3:14 PM John Linney <<a =
href=3D"mailto:john@linneyweb.com";>john@linneyweb.com</a>> =
wrote:<o:p></o:p></p></div><blockquote =
style=3D'border:none;border-left:solid #CCCCCC 1.0pt;padding:0in 0in 0in =
6.0pt;margin-left:4.8pt;margin-right:0in'><p class=3DMsoNormal =
style=3D'margin-bottom:12.0pt'>I went through 3 valves on my TR4. The =
final one got a seal using plumber=E2=80=99s pipe thread =
sealant.<br><br>Sent from my iPad<br><br>> On Sep 13, 2020, at 11:38 =
AM, David Friedlander <<a href=3D"mailto:forzion7@gmail.com"; =
target=3D"_blank">forzion7@gmail.com</a>> wrote:<br>> <br>> =
<span =
style=3D'font-family:"Tahoma","sans-serif"'>=EF=BB=BF</span><br>> I =
have noticed a small coolant leak from my TR3 and have traced it to the =
handle assembly of the water drain tap on the side of the block. Anyone =
else had this issue? It's a new tap and don't know what the fix might =
be. It's not leaking from where the tap threads into the block... Thanks =
in advance for any BTDT advice...<br>> <br>> Dave<br>> ** <a =
href=3D"mailto:triumphs@autox.team.net"; =
target=3D"_blank">triumphs@autox.team.net</a> **<br>> <br>> =
target=3D"_blank">http://www.team.net/donate.html</a><br>> Archive: =
<a href=3D"http://www.team.net/pipermail/triumphs"; =
target=3D"_blank">http://www.team.net/pipermail/triumphs</a> <a =
href=3D"http://www.team.net/archive"; =
target=3D"_blank">http://www.team.net/archive</a><br>> <br>> =
href=3D"http://autox.team.net/mailman/options/triumphs/john@linneyweb.com=
" =
target=3D"_blank">http://autox.team.net/mailman/options/triumphs/john@lin=
neyweb.com</a><o:p></o:p></p></blockquote></div></div></blockquote></div>=
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** triumphs@autox.team.net **
Archive: http://www.team.net/pipermail/triumphs http://www.team.net/archive
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