I have heard of engines overheating when thermostat was missing, but it is not due to the coolant flow going through the radiator so fast it cannot cool down. It is because the block and head and or head gasket have restrictions built into them to equally distribute the coolant. When you run an engine at high rpm's you sure have a lot more coolant flow than you do at low rpm's so it has to have a resistance to control the flow into all the parts that need cooling. The small engines that used thermo syphon cooling take a different head gasket than the same engine with a water pump added and it is the port size in different places that is different . With out a thermostat you would most likely push a lot of coolant through the front part of the engine and very little through the rear . If the heat sensor is in the part with poor flow it will read high. Not an engineers explanation but it should get some points across as to why you always want to have a proper thermostat installed in an engine designed for one.
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Today's Featured Article - Women and Tractors - Tractor Engine Repair - by Teri Burkholder. One of the great things about working on a tractor engine with your other half is that you know what he is thinking of at all times and can anticipate his every move and his next thought of what he will do. With Ben, anyway, I can tell! He'll be busy working and I’m handing him tools and he says, "give me that..." and I’ve already got it in his hand or "hand me that....."and I’ve got the portable light right where he needed it placed to see. "Run in the house and get me a...."as I open th
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