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1945 Farmall A cooling system

H

hayrake25

Member
Hello. I have a 1945 Farmall A and would like to know if this is a pressurized system. It does not have a water pump so I thought that it might not be. You guys will all you knowledge please let me know. THANKS
 
If original, it is not pressurized. Your tip will be the way the cap fits to the neck. If the lugs to tighten down the cap are on the outside of the neck, then it's pressurized. If on the inside, not.

If the cooling system is otherwise clean (good radiator, water jacket inside motor generally not full of sludge) the non-pressurized, no-water-pump thermosiphon coooing sytem on teh 113 motor was remarkably efficient and trouble-free. Much depends on a clean radiator. The fan is such that it will draw so much air over the radiator that, when working properly, you can shut the motor off after a long, hard-working run and not want to touch the top of the radiator, but find the metal of teh outlet neck at the lower end quite comfortable to the touch.

I've told the story often about listening from the house to our BN out cultivating beans all day. Apart from the occasional belch when the governor would grab hold, you never heard the exhaust -- what you heard was the fan. An amazingly efficient system for its simplicity. Tha tractor would run all day in light or heavy ground and never overheat.
 
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