Subject: [Mgs] Way too quiet...

From: Richard Lindsay via Mgs <[email-masked]>
Date: Tue, 10 Sep 2019 08:11:07 -0500

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Good day Friends,
   Its too quiet here so I will share a little OT noise. My Jaguar E-Type's
V12 now has a freshly installed 160=C2=B0F, hot climate thermostat...on the
right cylinder bank. Today I will replace the thermostat on the left bank.
Here's the back-story.
   While servicing the car a few days ago I measured the thermostat
housings with an IR thermometer. The left bank measured about 180=C2=B0F wh=
ile
the right bank measured 160=C2=B0F. The difference could be attributed to a
number of things but Occam's Razor says that the more likely reason is
different value thermostats installed.
   Upon servicing the right bank, I discovered a thermostat marked ' 74 '.
That's 165=C2=B0F, just (about) what the IR thermometer read. A new 160=C2=
=B0
thermostat is now installed.

http://aubard.us/73_Jaguar/20190909_180528.jpg

http://aubard.us/73_Jaguar/20190909_180651.jpg

   I fully expect to find an old 180=C2=B0 thermostat installed in the left
bank. Of course there is another possibility. The installed thermostat
could be damaged and opening only partially. If so, the temperature on that
bank would read higher, but 180=C2=B0? Precisely the temperature of a mild
climate thermostat? I don't like coincidences and doubt this one too.
However, today will tell when I remove the old thermostat.
   Actually, that last statement is only partially true. If a 180=C2=B0
thermostat is removed, all will be as expected. If however, a 160=C2=B0
thermostat is removed, the exact mechanism for 20=C2=B0 hotter coolant exit=
ing
the this bank will remain a mystery.

   But before any of that fun work can begin there are a couple of items in
the queue ahead of it. I plan to exercise all of the other cars while its a
bit cooler outside then stop by the shop to see if the mechanic has made
progress on the Maserati. Once the E-Type's service is complete, the TD
will get its new brake master cylinder and plans will be laid for finishing
the top and sidescreen canvas!

Rick

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<div dir=3D"auto"><span style=3D"font-family:sans-serif">Good day Friends,<=
/span><div dir=3D"auto" style=3D"font-family:sans-serif">=C2=A0 =C2=A0Its t=
oo quiet here so I will share a little OT noise. My Jaguar E-Type&#39;s V12=
 now has a freshly installed 160=C2=B0F, hot climate thermostat...on the ri=
ght cylinder bank. Today I will replace the thermostat on the left bank. He=
re&#39;s the back-story.</div><div dir=3D"auto" style=3D"font-family:sans-s=
erif">=C2=A0 =C2=A0While servicing the car a few days ago I measured the th=
ermostat housings with an IR thermometer. The left bank measured about 180=
=C2=B0F while the right bank measured 160=C2=B0F. The difference could be a=
ttributed to a number of things but Occam&#39;s Razor says that the more li=
kely reason is different value thermostats installed.</div><div dir=3D"auto=
" style=3D"font-family:sans-serif">=C2=A0 =C2=A0Upon servicing the right ba=
nk, I discovered a thermostat marked &#39; 74 &#39;. That&#39;s 165=C2=B0F,=
 just (about) what the IR thermometer read. A new 160=C2=B0 thermostat is n=
ow installed.</div><div dir=3D"auto" style=3D"font-family:sans-serif"><br><=
/div><div dir=3D"auto" style=3D"font-family:sans-serif"><a href=3D"http://a=
ubard.us/73_Jaguar/20190909_180528.jpg">http://aubard.us/73_Jaguar/20190909=
_180528.jpg</a><br></div><div dir=3D"auto" style=3D"font-family:sans-serif"=
><br></div><div dir=3D"auto" style=3D""><font face=3D"sans-serif"><a href=
=3D"http://aubard.us/73_Jaguar/20190909_180651.jpg">http://aubard.us/73_Jag=
uar/20190909_180651.jpg</a></font><br></div><div dir=3D"auto" style=3D"font=
-family:sans-serif"><br></div><div dir=3D"auto" style=3D"font-family:sans-s=
erif">=C2=A0 =C2=A0I fully expect to find an old 180=C2=B0 thermostat insta=
lled in the left bank. Of course there is another possibility. The installe=
d thermostat could be damaged and opening only partially. If so, the temper=
ature on that bank would read higher, but 180=C2=B0? Precisely the temperat=
ure of a mild climate thermostat? I don&#39;t like coincidences and doubt t=
his one too. However, today will tell when I remove the old thermostat.</di=
v><div dir=3D"auto" style=3D"font-family:sans-serif">=C2=A0 =C2=A0Actually,=
 that last statement is only partially true. If a 180=C2=B0 thermostat is r=
emoved, all will be as expected. If however, a 160=C2=B0 thermostat is remo=
ved, the exact mechanism for 20=C2=B0 hotter coolant exiting the this bank =
will remain a mystery.</div><div dir=3D"auto" style=3D"font-family:sans-ser=
if">=C2=A0</div><div dir=3D"auto" style=3D"font-family:sans-serif">=C2=A0 =
=C2=A0But before any of that fun work can begin there are a couple of items=
 in the queue ahead of it. I plan to exercise all of the other cars while i=
ts a bit cooler outside then stop by the shop to see if the mechanic has ma=
de progress on the Maserati. Once the E-Type&#39;s service is complete, the=
 TD will get its new brake master cylinder and plans will be laid for finis=
hing the top and sidescreen canvas!</div><div dir=3D"auto" style=3D"font-fa=
mily:sans-serif"><br></div><div dir=3D"auto" style=3D"font-family:sans-seri=
f">Rick</div><br></div>

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