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Ive got a Ford 2n that seems to lack engine speed control after the governor was replaced. I would appreciate any thoughts as to a solution.
The tractor was suffering from what ended up being a carb that needed rebuilt. As part of the diagnosis I discovered badly worn governor arms, spring, and a dented case that had wear from internal components rubbing. The balls and race seemed to be in good shape. With the old governor RPM is limited to about 800.
The carb has been rebuilt and the engine is running better while not moving. With the new governor installed there is no engine speed control while moving. Any position of the throttle above idle and the engine increases speed until the throttle is decreased. After decreasing the throttle the RPM will lower and then randomly increase. The throttle does not increase under load, however. I disconnected the governor completely and the arms do not move at all at any engine speed. There seems to be about 1/2 to 1 inch of travel of the throttle arm before the yoke engages the bearing inside of the governor. The governor spring is adjusted as per the manual, no preload.
Installing the old governor returns speed control but the limited RPMs return also. What are the chances that this is a bad governor vs. something else? Anything else I should try before returning this governor? Thanks to everyone in advance.
The tractor was suffering from what ended up being a carb that needed rebuilt. As part of the diagnosis I discovered badly worn governor arms, spring, and a dented case that had wear from internal components rubbing. The balls and race seemed to be in good shape. With the old governor RPM is limited to about 800.
The carb has been rebuilt and the engine is running better while not moving. With the new governor installed there is no engine speed control while moving. Any position of the throttle above idle and the engine increases speed until the throttle is decreased. After decreasing the throttle the RPM will lower and then randomly increase. The throttle does not increase under load, however. I disconnected the governor completely and the arms do not move at all at any engine speed. There seems to be about 1/2 to 1 inch of travel of the throttle arm before the yoke engages the bearing inside of the governor. The governor spring is adjusted as per the manual, no preload.
Installing the old governor returns speed control but the limited RPMs return also. What are the chances that this is a bad governor vs. something else? Anything else I should try before returning this governor? Thanks to everyone in advance.