Adrio - wouldn't it be easier to just pick up an original type unit.
That is unless PO bodged the thermo housing. I know it is $100 or
there abouts, but ...
What thermostat do you have in the car? What ever the operating temp
of that is could be your center line or just past it (on the H side) on
the guage. Mine runs at about 185 on standard thermostat. (which from
memory is at about the 5:00 mark on the dial) I don't like to see it
go over 200 although on rare occasions it has gone higher (but not since
the rad was boiled out).
Hope this helps.
Later,
Carl F. Musson
TS25264L - borrowing the engine/tranny from
TS81802LO - body off restoration in progress...
Tampa, Florida (USA)
E-Mail: Musson@arts.usf.edu <mailto:Musson@arts.usf.edu>
http://www.arts.usf.edu/~musson/triumph/
<http://www.arts.usf.edu/~musson/triumph/> (update in progress)
(Picture of separated body and chassis should appear soon)
-----Original Message-----
From: Adrio Taucer [SMTP:adrio@capitalnet.com]
Sent: Monday, March 23, 1998 9:11 AM
To: triumphs@autox.team.net
Subject: TR3 temperature gauge question
Listers,
I have a TR3 in which the PO changed the temperature gauge to an
electric one (I assume he could not get the original type). The
problems I am faced with are: I do not know what application the
new
gauge came from; I do no know what temperature the TR3 is
suppose to run
at; and, I do not know what voltage the voltage stabilizer that
should
be with this gauge operates at (the PO did not put a stabilizer
in).
The sender unit is a Smiths. I have characterized it and have a
plot of
resistance vs. temperature (for what good that does at this
point). The
gauge looks like the TR4 electric gauge BUT it does not have
temperature
values on it, rather it just has an H and a C at the extreme
ends of the
arc.
My questions to the collective knowledge of the list are: what
temperature does the TR3 run at when operating normally on a
summer
day; any hints as to the voltage required for this gauge; where
in the
arc of the gauge should the "normal" operating temperature be
(should it
be in the middle or closer to the H); What is the highest
temperature
the TR3 engine should be allowed to operate at (I could put this
at the
H); and, any idea where this gauge comes from.
All this is in a effort to obtain the proper voltage reference
for this
gauge. I am willing to build a solid state regulator to provide
this
reference so I can have any voltage I want. I just have too may
variables for the amount of data available.
Any help would be appreciated.
Adrio Taucer
'59 TR3
Ottawa, Canada
PS I am on the digest, so please cc this address with any reply
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