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8n transmission

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Mike Cozze

08-09-2004 08:08:48




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Last year I broke second gear in my transmission. I had it all fixed this year costing $2600, (he had to remove the loader and backhoe). I used it for an hour and a half and it jammed up between two gears. After getting it free I found reverse gear (top and bottom) are missing teeth. Also it was popping out of first gear (just like I told him it used to do) again.
He says he can fix it again for $600 (labor) plus gears. Any comments or suggestions welcomed. Thanks, Mike.

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Hobo, NC

08-09-2004 09:29:56




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 Re: 8n transmission in reply to Mike Cozze, 08-09-2004 08:08:48  
Sounds like the snap ring # 9N7070 that keeps the reverse gear in place has worn out and lets reverse gear slide back and forces the reverse shift fork against firsr gear and wears out first gear and the main shaft. Their was TSB frome Ford about this.



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Hobo, NC

08-09-2004 12:25:01




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 Re: 8n transmission in reply to Hobo, NC, 08-09-2004 09:29:56  
http://www.ytmag.com//nboard/messages/157857.html



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Rob

08-09-2004 09:42:58




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 Re: 8n transmission in reply to Hobo, NC, 08-09-2004 09:29:56  
What does that TSB say? Is there fix or you just suppose to keep your eye on it? What's the low-down?



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Hobo, NC

08-09-2004 12:14:00




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 Re: 8n transmission in reply to Rob, 08-09-2004 09:42:58  
I found out the hard way. Had heard a noise for some time like a rattle or tinking noise in the trans. Then it would jam into to gears or hard to shift out of gear and sometimes ya had to hunt fer a gear. Sometimes ya would put it in reverse and it would be in a foward gear. All this happen in one day. A buddy had a ford operater manule that he got from ford that had the TSB in it. Said that some reverse gear shafts had the slot fer the retainer not cut deep enoufh and the splinds in the shaft would wear into the retainer and cause the retainer to ride up on the shaft, Their repair was to replace the shaft and retainer. My repair was to have the grove in the shaft cut deeper and got a used retainer in good condition. Then replace the worn mainshaft and first gear that had worn out from not being able to turn free when not in use. In late 50 models they corected this.

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Rob

08-09-2004 13:11:47




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 Ah! late 50 Whew. in reply to Hobo, NC, 08-09-2004 12:14:00  
Mines a '51. So anyway, a guy could look at 1st gear for abnormal wear to figure it out. I guess you can see that by simply removing the tranny cover plate.
One day, huh? Maybe the wear is there before that day. What kind of wear was that on the 1st gear? On the side?
Seems like your fix is something a guy might want to do before the failure occurs.



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Hobo,NC

08-09-2004 16:01:13




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 Re: Ah! late 50 Whew. in reply to Rob, 08-09-2004 13:11:47  
After I did a search in the archives it applys to ser # 245636 & up. I would not loose any sleep over it but would check it out if'N I were to go into the trans. My first gear did have a good grove cut into the side of the teeth on the front side of the gear and was very loose on the main shaft. at the least I would have the reverse shaft cut deeper were the retainer ring fits.



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Rob

08-09-2004 16:18:38




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 Re: Ah! late 50 Whew. in reply to Hobo,NC, 08-09-2004 16:01:13  
Uh oh. Well, good to have the heads up. No big deal lifting the cover off that tranny and taking a look-see.
I know I do not want to shell out a tranny. I don't want to buy any shafts for sure. I just hate it when that happens.

I like this tractor one reason because it's cheap to keep. If I have to spend money on them I like them less. Oh well...



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souNdguy

08-09-2004 08:14:49




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 Re: 8n transmission in reply to Mike Cozze, 08-09-2004 08:08:48  
It cost 2600 to fix it the first time!!!!

I would have got a new tractor.. or even a traded out tranny first.. I think.

If it is poping out of gear and or jamming into two gears.. you have some considerable wear, or loose shifter forks / rails.

At this point.. you may have too much invested to NOT fix it.. but I would check for the price of a changed out tranny.

Soundguy



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