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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
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. And the TR6 sits quietly awaiting its turn at the
paint shop.
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'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'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'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 ' 74 '. That'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-family:sans-serif">=C2=A0 =C2=A0=
I fully expect to find an old 180=C2=B0 thermostat installed in the left ba=
nk. 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 clima=
te thermostat? I don't like coincidences and doubt this one too. Howeve=
r, today will tell when I remove the old thermostat.</div><div dir=3D"auto"=
style=3D"font-family:sans-serif">=C2=A0 =C2=A0Actually, that last statemen=
t 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 mech=
anism for 20=C2=B0 hotter coolant exiting the this bank will remain a myste=
ry.</div><div dir=3D"auto" style=3D"font-family:sans-serif">=C2=A0</div><di=
v 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 its a bit cooler outs=
ide then stop by the shop to see if the mechanic has made progress on the M=
aserati. And the TR6 sits quietly awaiting its turn at the paint shop.</div=
><div dir=3D"auto" style=3D"font-family:sans-serif"><br></div><div dir=3D"a=
uto" style=3D"font-family:sans-serif">Rick</div></div>
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