Posted by JDEM on October 24, 2019 at 15:49:29 from (47.33.231.52):
At the moment, I am a bit stumped. If someone else described this sort of problem to me, asking for advice, I would figure there was something missing from the story.
I have a Ford NAA/Jubilee here. I don't have any history on it. It had been sitting for years. I did some engine and wiring work on it. Got it running. Sounded fine and ran fine when I parked it. It sat for a few months. Today I started it and tried to move it. I put it in reverse, let the clutch up - and nothing happened. I then stuck it in 1st gear and again, nothing. No load on the engine, no attempts of the tractor trying to move. So - I am no huge Ford expert, but as far as I know - all is gear drive with a conventional single-disk clutch. PTO and wheel drive work off the same clutch. I got wondering if somehow the clutch had gotten stuck disengaged. So I turned on the PTO. It worked. Stopped with the clutch pedal in and turned when I let the pedal out. I then put the tractor in gear and let the clutch up. NOTHING, yet the PTO would spin every time I let the clutch pedal up. So it seems the clutch has to be fine. I got sitting there watching the PTO turn while I tried to think hard on the subject. Tractor was in 1st gear while I was sitting there thinking. After a few minutes, the tractor wheels almost seemed they wanted to start turning. Then real slowly at first, they did. Then gradually got faster and faster until it began to work just like it ought to work. It acted almost as if I had a hydrostatic trans and I was engaging it slowly. After that tractor got going, I ran it around a while. Even hooked it to something heavy and pulled a heavy load. So that is it. Seems like this should not be possible and I have a screw loose in my head. Guess I will have to study this tractor some more. If everything is gear drive - how can something act like it is slipping and slowly engage? Seems the only thing in the entire driveline is the clutch and if that slipped - it would of showed with the PTO.
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