When you say the car is stationary, do you mean the engine is shut down, or
just idling? If it is shut down then the engine is not producing any new
heat, anyway, and the fan will have probably moved enough air that it should
be fine. If it is idling then the thermostat will open back up and get the
coolant moving into the engine and the fan will kick back on if needed. To
make a long story short, either way you should be fine with the sensor in
the radiator. I have set up many cars that way and never had a problem. The
fan may run longer than it needs to if the sensor is on the engine, as long
as the coolant is at or below normal operating temperature, all is good.
Cooling it down extra fast is of no benefit in a car with an adequate
cooling system.
Daryl
-----Original Message-----
From: owner-mgb-v8@Autox.Team.Net [mailto:owner-mgb-v8@Autox.Team.Net] On
Behalf Of Barrie Robinson
Sent: Friday, December 29, 2006 3:32 PM
To: mgb-v8@autox.team.net; mgs@autox.team.net
Subject: Temp sensor position
Folks at world,
Having had some fun with the over-heating in my MGB GT V8 I have sort
of worried around all the aspects thus learning a great deal from our
gurus (for which many thanks). There are still some facets that
require some scientific confirmation but one little item comes to the
top of my greying grey matter...... My temp sensor is on the
radiator and this controls the electric fan. Thus when the rad is
cooled while the car is stationary, off goes the fan despite the fact
that the engine block may be still stonking hot! There is
practically no heat path between them when the pump has stopped
swirling water. Would it not be better therefore to put the sensor
on the block, or at least the intake manifold?
Regards
Barrie
Barrie Robinson
(705) 721-9060
http://www.britishv8.org/MG/BarrieRobinson.htm
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