Re: cooling system
You have not mentioned the GAV control inside the car, under the gas tank on the right side. Most Model A's like that set about 1/4 turn open when driving the car...open more to start and warmup. If it is too closed could also cause the car to run hotter...too lean. A lot of Model A radiators end up being partially clogged due to several factors. Once I had mine carefully rodded it never ran hot again. A Model A with a clean, adequate radiator, and properly tuned does not run hot, even in the summer going up hills.
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