Re: 23 Series - Overheating 288 engine

Posted by gone1951 On 2008/10/7 12:17:51
Jay writes,

Quote:
I've heard, but don't know, that it makes a difference having the thermostat in place beyond what you'd expect the thermostat to do. As, I'd expect having NO thermostat to make the engine run as cool as possible at all times. It seems to not be the case, and I'm not sure why that is.



What i've been told about why an engine tends to run hotter with the thermostat removed is that the restriction created by the presents of the thermostat slows down the coolant thru the radiator allowing more heat transfer to occur. Without the thermostat there the coolant tends to travel too fast thru the radiator thus giving up less heat and delivering the coolant back to the engine hotter than it could be.

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