> ------- Start of forwarded message -------
> From: MKCASPIAN1@aol.com
> Date: Mon, 9 Dec 2002 20:59:12 EST
> Subject: Temperature guage
>
> Hello fellow listers,
> I have a 78 Spitfire, and the temp. guage was only reading
> about 1/3., even though all summer it seemed really hot!
> At someones suggestion, I replaced the sending unit with
> a brand new one. Now it only reads about 1/4 when the
> engine seems hot. Is my problem the guage, the sensor or
> maybe the thermostat? Does anyone have a working guage
> they might be willing to part with? Maybe its just
> becaus its only 18 degrees out! John
> 78 Spitfire
John,
There is an easy way to test you system. Remove T-stat,
sending unit, gauge, and voltage stablizer from your car.
Then using clip leads, wire it all back together in the
house to a 12V lantern battery. Remember that you will need
a negative lead from the housing of the sending unit, as the
system gets its ground from the eng. block.
Then take a meat thermometer and boil some water. Then you
can put the sending unit and the thermometer in the water
and
see where the gauge reads. You will know it's 212F (100C)
as the water is boiling. You might want to paint a mark on
the glass face of the gauge so you actually can tell where
212
is. If you want to calibrate it at a higher temp, you will
need to heat some oil. BUT BE CAREFULL!!!! If the oil over
flows the pan, you could have a very nasty fire!!!!!
Hope this helps.
John
John T. Blair WA4OHZ email: jblair@exis.net
Va. Beach, Va Phone: (757) 495-8229
48 TR1800 48 #4 Midget 65 Morgan 4/4 Series V
75 Bricklin SV1 77 Spitfire 71 Saab Sonett III
65 Rambler Classic
Morgan: www.team.net/www/morgan
Bricklin: www.bricklin.org
/// spitfires@autox.team.net mailing list
/// or try http://www.team.net/cgi-bin/majorcool
/// Archives at http://www.team.net/archive
|