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Farmall & IHC Tractors Discussion Forum

Farmall B Governor/RPM Issues

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Author  [Modern View]

04-07-2020 07:56:15

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Ever since I replaced my broken governor spring in my Farmall B last fall I don't think it has been reaching as high of rpm's at "wide open". I have the high idle screw on top of the governor housing backed pretty much all the way out. New throttle bushing in governor housing about four years ago. I reset the linkage from the governor to carb. What I am noticing on the carb butterfly is when I set the linkage I am pushing the bottom of the butterfly as far towards the rest of the tractor as it allows. But when I reattach the clevis rod, run the tractor, and set the throttle hand lever all the forward, the butterfly is not moving all the way towards the rear of the tractor. Is this because the governor weights are compensating since it is running, or do I have some issue inside the governor housing? Nothing looks like it is binding or stuck externally while it is running. And the governor is only about five years old. But just listening to it run at "full" throttle it still seems like it is only maybe 75% rpm. I can manually push the governor to carb rod and get more rpm's, so I wouldn't think it is a fuel delivery issue with the carb. Any ideas? Thank you much!

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Dave BN

04-07-2020 09:13:45

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 Re: Farmall B Governor/RPM Issues in reply to jkmdg84, 04-07-2020 07:56:15  
Sounds like you have every thing set correctly. What if you adjust the carburetor linkage so the carb opens further.


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