What part of the valve cover do you think is getting hot? The bottom left side is right by the exhaust manifold and that part of the head does heat up quickly and oil residue can smoke in that area. The thermal gun will tell the story. The only thing that might be a problem is if you installed the thermostat upside down. The larger brass temp bulb should be down. Even then if it is getting hot and the temp gauge worked before it should read hot. One other thing I have seen is caused by folks that like to gob on a lot of RTV sealer. I have seen chunks of it get loose in the cooling system and plug the small bleed opening in the thermostat. Then the air cannot escape out of the block and head when the system if refilled. Then no water can make its way up to the temp gauge or the thermostat in this case you may experience the type of problem you are indicating. This is really not to likely a issue in a Farmall because of the fairly large bypass they have. The water pump will likely get some flow going in the system anyway, at least enough to open the thermostat and purge out the air. Your external engine heater is not to likely causing your problem. Originally the places it connects are plugged anyway. In no way can it flow enough coolant compared to a radiator hose to stop proper cooling.
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Today's Featured Article - Sunday Drives - by Cowboy. Summer was finally upon us here in Northern Maine. We have two types of industry up here, one being "Forestry" (Wood Products) and the other "Farming" (Potatoes). There is no shortage of farm tractors and equipment around here! I have been restoring old Farm Tractors for the past 6 years, and have found it easier and less expensive to hit all the auctions and purchase whole tractors for parts needed. My wife who works at a local school, and only has weekends and summers off, while on t
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