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Old 06-25-2016, 07:29 AM   #23
Jrainman
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Join Date: Jul 2015
Location: North East PA
Posts: 682
Re: Some Learning For all About Actually Removing T-Stat

Lot of good Information from all, but I think you first have to understand the effects of pressure on boiling point temperatures .

A system under pressure can handle higher temperatures , and offers a higher Boiling Point ,Most liquids have a specific Boing Point ,witch is the temperature at witch the liquid begins to change to a gas

If pressure is applied to the liquid, it must become hotter before it can boil ,Pure water in a cooling system will boil at sea level at 212 f at higher altitudes, atmospheric pressure is less then at sea level (water at 5280 ft will boil at a mere 203 f

A cooling system that is under a true 15 lbs of pressure however , will now allow the water to reach nearly 250 f before it will boil ,even at this temperature the water is able to circulate through the engine cooling parts that are much higher in temperature with out the water boiling.

As long as the coolant remains in liquid form it can do its job and transfer heat to the radiator or heat exchanger so it can be dissipated .

Coolant that is boiling cannot transfer as much heat and overheating is likely to occur if the coolant turns to a gaseous state . Steam adjacent to a hot surface, such as combustion wall ,can act like a insulator ,thus preventing any heat transfer to the coolant.

50/50 antifreeze at 15 psi will boil at 227 f
So I would make sure my cooling system is under the proper pressure and have good coolant in the system ,
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