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Subject: Does 8n tranny

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Shane    Posted 08-01-2019 at 14:49:34 [URL] [DELETE]        [Reply] [Email]  
  • Does 8n tranny
  • 8n pops out of first going down hill, pro disengages in its on. Pulled the top off tranny and the large gear in the rear of the tranny is very loose. It can be moved quite a bit in all directions. All others seem to be in good shape. Is there a way I can split the tractor behind the tranny and fix this issue? Seems it may be the root of both problems.

    Thanks

    K.LaRue-VA    Posted 08-03-2019 at 08:34:22 [URL] [DELETE]        [Reply] [Email]  
  • Re: Does 8n tranny
  • If you do just a rear split, the shift rails and main shaft do come out the back. Big pieces cone out the top as they come loose from the rails and shaft. If the rear main shaft bearing is trashed, you can replace that. You can replace the wobbly gear if it's broken. However, I don't know how you can properly set the preload on the bearings with the front of the transmission still attached to the engine. It may be possible to turn the gears back and forth by hand and get a feel for the preload that way. I've never pulled anything apart that didn't have more damaged parts than could be seen before I got it apart. I would just start with a front split and get the entire tranny loose so I could get everything out and clean all the broken metal bits out of the case. Leave loose bits in the case and even if you can fix the current problem, damage will continue to occur.

    Shane    Posted 08-03-2019 at 10:12:17 [URL] [DELETE]        [Reply] [Email]  
  • Re: Does 8n tranny
  • Thank you. Is it possible the first gear issue (wobbly) could be the cause for the pto slipping out of gear or are they not interconnected in any way?

    K.LaRue-VA    Posted 08-03-2019 at 11:27:51 [URL] [DELETE]        [Reply] [No Email]  
  • Re: Does 8n tranny
  • Any wobble or vibration in the transmission could walk the PTO off or knock the tranny out of gear. That doesn't mean there might not be a different problem with the PTO. These are old machines. Some bave been abused.

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