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Ford 9N, 2N & 8N Discussion Forum
Show Parts for Model:

Re: 8N transmission locked up.

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hotdawg22

07-07-2013 17:19:34
76.4.32.87



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Yes i did try with the clutch engaged and that was when it would just turn so far. I went out now and pushed the clutch in and the motor turns freely, soooo it has to be in the trans.
The rear end won"t move and the limited movement i can get out of the trans is limited to the trans cause the driveshaft is absolutely frozen and will not move.
Soo, from what i am hearing it my be both the trans and the rear end locked up.
There were a couple of chipped teeth but nothing that would lock it up, or at least i dont think it would. I have checked all the gears that are moving for anything stuck in the teeth but nothing.
I don"t know the history of the tractor but i am now guessing that the guy that owned it tried to unlock it and just messed up more stuff.
Guess i will pull left axel etc tomorrow and see what the spider and pinion looks like.

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JMOR

07-07-2013 17:42:17
72.181.173.171



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 Re: 8N transmission locked up. in reply to hotdawg22, 07-07-2013 17:19:34  
Guessing was a good word. IF the transmission is actually in neutral, then it would not matter, even if the drive shaft were welded to the housing, the transmission input shaft & clutch would still be free to spin.



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hotdawg22

07-07-2013 20:33:02
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 Re: 8N transmission locked up. in reply to JMOR, 07-07-2013 17:42:17  
You know, i just thought of something and you may have the answer. If the trans is locked up for what ever reason, could that also lock the differential into position giving the illusion that it was locked up too??
I mean, if the output shaft fron the trans to the drive shaft was locked would that not also keep the differential from turning?



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JMOR

07-08-2013 01:07:41
72.181.173.171



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 Re: 8N transmission locked up. in reply to hotdawg22, 07-07-2013 20:33:02  
Quoting Removed, click Modern View to seeyes & yes. Also on your "half turn" question, due to the fact that the ratio between meshing gears may be as much as 11:1 (low) or as little as 3:1 (4th gear), then it is clear that with a piece of tooth wedged in a particular gear, then 1/11th fwd to 1/11th back would see lock to lock. Similarly for 1/3 fwd & 1/3rd back.



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hotdawg22

07-08-2013 05:31:40
76.4.32.87



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 Re: 8N transmission locked up. in reply to JMOR, 07-08-2013 01:07:41  
Good point and i did not think of that. It would have to be one of the small gears at the bottom of trans that i can"t see without taking it apart so guess that is next move.
I will post what i found.



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JMOR

07-08-2013 06:06:07
72.181.173.171



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 Re: 8N transmission locked up. in reply to hotdawg22, 07-08-2013 05:31:40  
Another thought: sounds like you bought it in this locked up condition. If so, then it could be that one or more of those gears that should be free to rotate on its shaft is not free (rust/corrosion/etc.). Roughly half of total gear count is free to rotate relative to shaft they ride on & the other half are fixed to & always rotate with shaft. Couplers all rotate with shaft they ride upon. Are you sure all 3 couplers are disengaged, i.e., in non-coupling neutral positions?

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hotdawg22

07-07-2013 20:15:28
76.4.32.87



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 Re: 8N transmission locked up. in reply to JMOR, 07-07-2013 17:42:17  
So in your opinion what do you think could be the problem as i have scrated my head on this one and can not figure what has happened and what is the solution. I hate like L to break all this down but guess i am going to hafta do dat.



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