Juansailor(at)aol.com wrote:
> I have never had an overheating problem with my SIII & the temp gauge has
> always indicated about 110 deg even with the summer ambient in the 90's.
> Thinking that I may have pulled the thermostat at some point in,the distant
> past I removed the housing to find a functioning thermostat in place.
>
> Is there a method a "shadetree mechanic" can use to chech the sending unit and
> the gauge?
> Which would be the most likely to be faulty?.
>
> Thanks
> Phil Reddy
Phil:
Below is a reprint of some recent exchanges on this topic, and also Tony Leeming
suggested that you could get -+ 10 degrees by moving the dial. (see Archives
July/98). Use a meat thermometer (the type with a probe) to check your reading,
and clean all contacts first ( as mentioned below, any resistance will affect
reading).
Ron Tebo
William Lewis
<wrlewis(at)ucdavis.edu>
Bill wrote,
>On a separate note, I finally measured my radiator temperature last night
>in my series II car and found that my temperature gauge is reading 10
>degrees too low. I seem to remember someone (Jarrid?) saying that the
>gauge can be adjusted. I looked at the gauge and the sender, and don't see
>any obvious mechanisms for adjustment. Any advice is much appreciated.
There is no "tweak" per se, but the meter can be made to read closely
to ideal around a given temp band.
The adjustment is in the form of an offset adjustement by shunting either
the temperature sense element, or the meter.
The actual resister value can be found by using a resistor decade box
and the ultimate resistor would be mounted under dash, at the meter
itself.
This will make the readings correct near the temperatures of interest
which should be around 100 deg C.
Jarrid
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