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Isn't that going to be a pipe thread? I would guess it to be 1/8" NPT
(tapered) or 1/8" BSPT (straight). Just get a pipe plug of the correct
thread size. There is no bolt thread that will match up as far as I know.
Since the threads are making the seal, use some Teflon tape and/or thread
sealant like RectorSeal or Permatex.
Alex Thomson
From: Triumphs [mailto:triumphs-bounces@autox.team.net] On Behalf Of dave
northrup
Sent: Saturday, February 12, 2022 1:39 PM
To: triumphs@autox.team.net
Subject: [TR] TR6 engine block
When I bought the car (1972 TR6) in 2001, a friend suggested that I replace
the oil pressure warning sensor in the block. It just failed at the joint
between the metal and the plastic. Fortunately, being a pack rat, I still
have the original sensor which I put back in. it looks to be of much higher
quality, although I guess I shouldn't complain about 20 years of service.
I suspect the one I just put back in is the original sensor and survived the
first 30 years without trouble. I thought about carrying a spare - this
failure would have been catastrophic as quite a bit of oil was leaking out,
not to mention the mess it made of the exhaust and the undercarriage. Then
I figured I could just carry a small bolt with a copper washer. Given the
car has an oil pressure gage which I think would flag this disaster much
sooner, plus the copious amount of oil underneath would have alerted me, as
it did this time.
Does anyone know how far into the block this hole goes? What is down there
and how short a bolt do I have to use?
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link=3D"#0563C1" vlink=3D"#954F72" style=3D'word-wrap:break-word'><div =
class=3DWordSection1><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;color:#1F497D'>Isn’t that going to be a =
pipe thread? I would guess it to be 1/8” NPT (tapered) or =
1/8” BSPT (straight). Just get a pipe plug of the correct thread =
size. There is no bolt thread that will match up as far as I know. Since =
the threads are making the seal, use some Teflon tape and/or thread =
sealant like RectorSeal or Permatex.<o:p></o:p></span></p><p =
class=3DMsoNormal><span =
style=3D'font-size:12.0pt;color:#1F497D'><o:p> </o:p></span></p><p =
class=3DMsoNormal><span style=3D'font-size:12.0pt;color:#1F497D'>Alex =
Thomson<o:p></o:p></span></p><p class=3DMsoNormal><span =
style=3D'font-size:12.0pt;color:#1F497D'><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>dave northrup<br><b>Sent:</b> Saturday, February 12, 2022 1:39 =
PM<br><b>To:</b> triumphs@autox.team.net<br><b>Subject:</b> [TR] TR6 =
engine block<o:p></o:p></span></p></div></div><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>When I =
bought the car (1972 TR6) in 2001, a friend suggested that I replace the =
oil pressure warning sensor in the block. It just failed at the =
joint between the metal and the plastic. Fortunately, being a pack =
rat, I still have the original sensor which I put back in. it =
looks to be of much higher quality, although I guess I shouldn’t =
complain about 20 years of service.<o:p></o:p></p><p =
class=3DMsoNormal><o:p> </o:p></p><p class=3DMsoNormal>I suspect =
the one I just put back in is the original sensor and survived the first =
30 years without trouble. I thought about carrying a spare – =
this failure would have been catastrophic as quite a bit of oil was =
leaking out, not to mention the mess it made of the exhaust and the =
undercarriage. Then I figured I could just carry a small bolt with =
a copper washer. Given the car has an oil pressure gage which I =
think would flag this disaster much sooner, plus the copious amount of =
oil underneath would have alerted me, as it did this time. =
<o:p></o:p></p><p class=3DMsoNormal><o:p> </o:p></p><p =
class=3DMsoNormal>Does anyone know how far into the block this hole =
goes? What is down there and how short a bolt do I have to =
use?<o:p></o:p></p></div></body></html>
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