These are not modern engines designed to run at 192-208F. The thermostat should be 160F. A very low pressure radiator cap, and unless there is an aftermarket overflow tank, leave 2" of clear space at the top of the radiator for expansion. If you fill it full, it will just dump out 1-2" of coolant each time it's up to temp.
Ethelyn glycol can be added to protect from freezing, but it will not increase the cooling capacity of the water. Temps over 190F should be avoided, and also, cool down after a hot use is a good idea to keep from warping a 60 year old head. Let it idle for a bit after a hard work and let the temps get back down to 160 or so before shutting it off. I usually close the fuel petcock once I'm done, and let the fuel in the line and float empty out for about 2 min, then turn off the key.
The 8x1 tractors are a great strong old beast. My only complait is that few were ordered with power steering. I have a 961 and the power steering makes life on the tractor much nicer.
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Today's Featured Article - Usin Your Implements: Bucket Loader - by Curtis Von Fange. Introduction: Dad was raised during the depression years of the thirties. As a kid he worked part time on a farm in Kansas doing many of the manual chores. Some of the more successful farmers of that day had a new time saving device called a tractor. It increased the farm productivity and, in general, made life easier because more work could be done with this 'mechanical beast'. My dad dreamed that some day he would have his own tractor with every implement he could get. When he rea
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