Re: RUNNING HOT (thetatau87)
quote:[HR][/HR]I'd be wary of using an IR temp gauge to read anything but surface temps.[HR][/HR]
The thing an IR temp gauge is good for is determining if you have a blockage in your system.
For instance, if you shoot one part of the radiator, and then shoot another part of the radiator, and the second part is 50 degrees cooler, then you've probably got a badly clogged radiator. Similarly, if you shoot the hose going in to the heater core, and the hose coming out, and they are wildly different.
A good way to test the opening point of thermostats, operating point of fan switches, accuracy of water and/or oil temp gauges, etc etc. is to put the sensor/thermostat etc into a pot of water, and slowly heat the water up. Put an accurate thermometer in there with the item, and you can get a feel for its accuracy.
-Nate
[Modified by SaabFan, 8:56 AM 4-29-2002]