Re: Engine Thermostats - Old vs. New

Posted by humanpotatohybrid On 2023/10/5 21:53:42

Thanks for the excellent explanation TxGoat and Howard. It makes sense that the thermostat restriction would help increase coolant pressure in the block, exactly where it would be needed, since as I understand the water pump pumps into the block, but the thermostat is after the block. Back of the envelope calculation: water is some tens of times better at convective heat transfer than steam, so any steam bubbles forming from less-than-intended pressure would be an immediate detriment. This sounds to be a very reasonable possibility in causing an overheating condition.