03-20-2020, 09:35 PM
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#23
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Senior Member
Join Date: Jun 2014
Location: Melbourne, Australia
Posts: 7,497
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Re: Overheating
Quote:
Originally Posted by eagle
When it comes to straight transfer of heat to the radiator then to the air, fast flow with lots of turbulence will transfer the most heat. However, putting a thermostat in the top hose will reduce the flow, causing a slightly higher pressure in the block, (actually less negative pressure) so the coolant won't flash to steam as soon. When even a very small amount of coolant flashes to steam it increases in volume I think about 1700 times, causing at least a dump out of the overflow, and sometimes the tea kettle effect. Granted, the radiator is likely on the edge of being too restricted for efficient cooling if the thermostat makes a difference but sometimes even a small difference gets you by for a while.
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Eggzacly
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