Well, except for John (UK), for raising the possibility of a blown head gasket/cracked head! :cry: (Just kidding, John - if that's a possibility, I guess I need to know it now. I really haven't noticed any other symptoms, and the radiator coolant and crankcase oil are both clean.)
I'm sure the thermostat is pointed in the right direction, and that it was operating properly immediately after I installed it, as I could see the water flowing in the radiator.
I'll check it in a pan of hot water this weekend, to ensure that it's still opening.
I also considered the idea that the leak was coming from the radiator itself, and not the valve - I'll try to check that more closely, too.
Finally, I'll take the cap to my local auto parts store to have it tested, and to make sure it's the proper 4 psi cap.
FYI: the radiator has a tag on it, indicating that it paid a visit to Midwest Radiator in Kansas City, which has been the "go to" radiator repair shop in this area for a LONG time. (The tag has been on the radiator a LONG time, too.)
Thanks again. As the new owner of an old tractor, I continue to be amazed at the helpful folks who frequent this board.
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Today's Featured Article - Madison's County - by Anthony West. Philip Madison has been a good friend of mine for quite some time. He has patiently suffered my incessant chit chat on the subject of tractors for longer than I care to remember, and on many occasions he has put himself out, dropped what ever it was he was doing, to come and lend a hand cranking handles, or loading a find onto a trailer. Although he himself has never actually owned or restored a tractor, he was always enthusiastic and always around helping with other peoples projects.
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