Odd 8N transmission problem

old

Well-known Member
My 8N has a back hoe on it so all it is used for is digging holes. So I have had the clutch pedal blocked down while running or not running. So I took the block off and in neutral the engine stalled. Push the pedal back down and it started up with no problem. I then tried to put it in 1st gear to move it and the engine stalled again like it was in 2 gears. Plus I could not get it back out of first with out firing it up and then had to pull real hard even then. Got it back in neutral and figured I would lift the back wheel off the ground and then slowly let he clutch pedal up. The right side rear tire started to spin since it was the one up the highest off the ground. But it spun up real fast like it was in 4th gear or maybe reverse did not notice which way it was spinning. So has it some how jumped into gear while I was running the backhoe and not it is stuck in a gear with the shiftier in neutral??
I plan to pop the top plate off but that will not be fun since it has the loader and back hoe on it
 
its a very comnon problem to have 8n tractors stuck in two gears at the same time.

Usually 4th and R is the culprit.

If you do a search in the archives here you will see lots of other folks had this problem and what they have done to fix it.

Good luck
 
This is not stuck in 2 gears it seem to be in a high gear either reverse or 4th but yet it was not shifted into either one. It seems to have gone into what ever gear it is in by it self while I was working the backhoe
 
I pull the shiftier cover off and verified that it is in fact not any any gear. If you let up on the clutch with it running the rear tire spins up fast as in faster then it would even in 4th gear. It is almost like the bearing if it has one between the transmission input shaft and the pinion shaft has locked up so it is now in a direct drive from the engine to the rear end.

But is that possible??? Would a bearing or other such thing lock up so tight as to cause the rear tires to spin up faster then it would if any gear??
Thanks

And no I have not opened up the manual yet to see if it shows a break down of the bearing etc.
 
Later 4 speed transmissions have a split bottom shaft. Not sure if an N transmission does. If the bearing between the two halves seizes, you get 4th gear speed when in neutral.
Remember that one wheel spinning while the other is stopped means the one is turning at 2X the speed it would be if both were turning.
 
You have bragged you could put a clutch in one in a couple hours no problem EZ as pie all tooled up a boy scout could do it... You have stated you have a stack of manuals about 100 ft high sitting right beside you... Read up and take a couple hours to dissemble it to find your problem EZ as pie...
 
If your not going to help then don't post simple as that. I do not attack you for any reason so you should at least respect the site and its rules and not attack me. Oh and what you have said is so far from what I have said it is not funny
 
Oh so wrong. Never said any thing about 100 stack of manuals. As for taking an 8N apart for a clutch job yes a bear 8N I can take down in about an hour but this is not a bear 8N and not in my shop. So again you attack but not help WHY what have I ever done to warrant you attacking me
 
"But is that possible??? Would a bearing or other such thing lock up so tight as to cause the rear tires to spin up faster then it would if any gear??" Even a boy scout would know that is not possible! Especially a 70,000+ 'knows everything' poster! :roll:
 
Where it is sitting I can only get one wheel off the ground with the out rigger set up it has on it so that is why only one wheel is spinning.
 
1. Old, keep us posted. We all can learn from this repair.

It is possible for a gear to vibrate into engaged with the shifter in neutral especially when the motor is running and the clutch blocked. The reason it was hard to get out of first was two gears were probably engaged in a bind once you tried the clutch.

TO OTHERS,.
2. If the transmission is stuck in two gears at the same time no tire would turn.
3. Old's original post said one tire was on the ground; so it is not a wheel bearing or brake locked up.
4. We need to read a post thoroughly and not post an incorrect opinion on what is wrong. It is this misinformation that causes confusion to people who do not know better.

This forum is very educating only when guesses are not posted.
 
From what I did yesterday it appear that the bearing between the input and output shaft is locked up. I pulled the transmission top plate again and fire it up and with it in neutral let the clutch out and the input and output shaft tried to move. So good chance the bearing there is bad so it is not going to be fun to fix with the loader and back hoe on it. Plus it is parked in a place where it cannot pull it self out of so will have to tow it out
 
I thought that also but the shiftier rails are all in neutral and it does not appear that any of the shiftier forks are broken and no gears appear to be out of place.
 
Rich, if it stuck (welded) to the shaft. It would not look engaged. I fixed a 4 cyl 2000 four speed trans that that had happened to and acted the same. Just a guess. Let us know.
Ron
 
I know when I have the out rigger down so one or both back wheels are off the ground it spins up like the input and output shaft are welded or locked up tight and the rear wheels spin fast then they would if it was i n4th or sure look like it. I can shift it into any gear and it will stall out also. I had the top off again and tried to move it but the engine would stall and you could see the input and output shaft try ti spin at the same time
 

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