The Ford Barn

WestCoast · 07-13-2015, 04:41 PM

prpmmp, the thermostat does not control cooling, all it does is stop the water from circulating to the radiator till the water in the engine reaches the designed thermo temp, at that temp the water is allowed to flow to the radiator, most engines will run hotter when idling because of reduced water and air flow thru the rad, excessive heat build up can be caused by a bad rad, water pump, and a fan that does not pull enough air thru the rad, when at speed more air is being forced thru the rad, hench the engine runs cooler, if your car runs at lets say 200 degrees, the thermostat has nothing to do with that, it opens at 180 degrees and lets water flow, the cooling is left to the water pump, radiator, fan and a moving car, basically a thermostat is an idiot, it only knows how to do one thing, open at the temp it was designed for

07-13-2015, 04:41 PM	#33
WestCoast Senior Member Join Date: Sep 2014 Location: oroville calif Posts: 892	Re: An argument FOR thermostats. .. prpmmp, the thermostat does not control cooling, all it does is stop the water from circulating to the radiator till the water in the engine reaches the designed thermo temp, at that temp the water is allowed to flow to the radiator, most engines will run hotter when idling because of reduced water and air flow thru the rad, excessive heat build up can be caused by a bad rad, water pump, and a fan that does not pull enough air thru the rad, when at speed more air is being forced thru the rad, hench the engine runs cooler, if your car runs at lets say 200 degrees, the thermostat has nothing to do with that, it opens at 180 degrees and lets water flow, the cooling is left to the water pump, radiator, fan and a moving car, basically a thermostat is an idiot, it only knows how to do one thing, open at the temp it was designed for