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Something went TINK

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Monique

04-15-2003 13:23:46




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I was pushing and pulling a stump out of the dirt with my 1949 Ford 8N when I gave it one last push. I heard something go "TINK" and lost all drive to the rear wheels. I checked the rear axles and they are fine. I took the inspection cover off, on the center housing, and I notice the only thing turning is the PTO shaft. When I let the clutch out, I can hear the transmission spinning, but no drive whether I am in 1,2,3,4 or REVERSE.

Does anyone have any suggestions for finding the problem other than splitting the tractor at the transmission. Does anyone have an idea what the problem MIGHT be?

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David

04-19-2003 11:31:24




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 Re: Something went TINK in reply to Monique, 04-15-2003 13:23:46  
Don't know about Ford 8N but Ferguson T20, 35 etc have a shear coupler in the transmission that is designed to shear and protect the transmission from excessive abuse/force (delete as applicable). If it was a Ferguson I'd hope it was just that that has sheared. In the Ferguson its a coupler with one or sometimes 2 grooves around it and can be seen in the driveshaft by taking off the left hand rear side cover where the PTO fits. Just thinking that perhaps 8N has similar protection built in.

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David

04-19-2003 11:39:28




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 Re: Re: Something went TINK in reply to David, 04-19-2003 11:31:24  
I meant side cover where PTO LEVER is located (on Ferguson) My posting isn't clear on this bit. I'd take off cover and run it with a rear wheel jacked up securely to see whats moving and what's not. If it has a coupler and its intact, if driveshaft isn't turning it woudl probably be a gearbox problem. If shaft is turning problem woudl be in rear axle. On Ferguson the fault would almost certainly be the shear tube. They aren't expensive but replacement looks like it would be a hassle although I haven't had to do one. - yet

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bcPA

04-18-2003 13:45:07




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 Re: Something went TINK in reply to Monique, 04-15-2003 13:23:46  
If the only thing turning in area between trans and rear where you took round insp. plate off that means the power is not making its way to the rear. I believe you should look carefully at the coupler with splines in it that hooks the output shaft on the trans to the rear. It may have the splines in it worn out or broken. I have also seen these couplers ripped open in a spiral manner in the past. Next I would take the top off the trans and take a good look. Mine broke the gear just inside the trans on the pilot shaft and the gear just below it also. I would look at the gears that are above the trans grease first and then if you dont find a problem drain the trans so you can see the lower ones. good luck.

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Scott

04-16-2003 08:57:10




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 Re: Something went TINK in reply to Monique, 04-15-2003 13:23:46  
Had same problem with a 641 workmaster. Ended up being a broken axle. If it is, the wheels wouldn't rotate opposite directions.



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DickTN

04-15-2003 19:55:55




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 Re: Something went TINK in reply to Monique, 04-15-2003 13:23:46  
Jack up left rear wheel (after blocking other wheels), drain fluid (3 drains), pull off left wheel (it's heavy), pull off left brake assembly and left axle. Remove left trumpet (axle housing). At this point, you can see rear end gears and remove ring gear assembly. Sounds like you busted something in the rear end. PTO shaft turning sounds like clutch is OK. Not a whole lot of fun, but not too difficult other than the 450 foot-pounds of torque on the axle nut. If you don't have a manual, get one before you tackle this job. DickTN

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DickTN

04-15-2003 19:55:54




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 Re: Something went TINK in reply to Monique, 04-15-2003 13:23:46  
Jack up left rear wheel (after blocking other wheels), drain fluid (3 drains), pull off left wheel (it's heavy), pull off left brake assembly and left axle. Remove left trumpet (axle housing). At this point, you can see rear end gears and remove ring gear assembly. Sounds like you busted something in the rear end. PTO shaft turning sounds like clutch is OK. Not a whole lot of fun, but not too difficult other than the 450 foot-pounds of torque on the axle nut. If you don't have a manual, get one before you tackle this job. DickTN

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Monique

04-15-2003 21:47:35




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 Re: Re: Something went TINK in reply to DickTN, 04-15-2003 19:55:54  
DickTN..... .I think i am going to try your suggestion. It makes perfect sense why the tranny sounds good, the axles rotate opposite, and the clutch disengages the PTO, and I have no drive..... THE PINS ARE BROKE ON THE RING !!!

Any suggestions on replacing these? Is the pin a bolt? Could I replace these with hardened bolts of some sort? Any suggestions? THANKS FOR ALL THE REPLIES

MONIQUE

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Ludwig

04-16-2003 05:31:50




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 Re: Re: Re: Something went TINK in reply to Monique, 04-15-2003 21:47:35  
I don't think you'd need to. Think about how old those pins are now anyway. They've just stressed over time. Besides if those pins are there to save the ring gear. Which would you rather replace the pins or the whole gear?



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jake

04-16-2003 12:48:12




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 Re: Re: Re: Re: Something went TINK in reply to Ludwig, 04-16-2003 05:31:50  
Those pins were not to protect the ring gear but to secure it in place for max power to the axels. Replace the pins with at least grade 8 bolts & nuts. There's a dink at my club that used grade 2 he popped those with a rear blade. [dink and tink]



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moonlite

04-16-2003 17:01:44




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 Re: Re: Re: Re: Re: Something went TINK in reply to jake, 04-16-2003 12:48:12  
If I recall correctly , they were riveted from the factory and replacements were a special bolt. Remember when I worked for Ford we had one on a major Diesel that did that.



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tiny

04-15-2003 15:57:56




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 Re: Something went TINK in reply to Monique, 04-15-2003 13:23:46  
Sheared the rivets holding the ring gear. Did the same thing to my brether-in-laws.



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Scottey841

04-15-2003 15:13:31




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 Re: Something went TINK in reply to Monique, 04-15-2003 13:23:46  
What do you guys think? Broken ring gear in the rear end?



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Ludwig

04-15-2003 15:57:54




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 Re: Re: Something went TINK in reply to Scottey841, 04-15-2003 15:13:31  
Seems logical, but it also seems like if the ring was broke it'd make way more than a 'tink' noise. I'd opt for the pinion shaft being broke. Either way its not good.



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Arbor 1

04-15-2003 21:02:44




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 Re: Re: Re: Something went TINK in reply to Ludwig, 04-15-2003 15:57:54  
I'm with Scotty on this one pinion shaft my dad did the same darn thing,he breaks it I gotta fix it trouble is we have two stump grinders but he doesn't know how to run those have fun



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John Ne. two times

04-18-2003 10:06:07




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 Re: Re: Re: Re: Something went TINK in reply to Arbor 1, 04-15-2003 21:02:44  
When I was farming, borrowed neighbors 8N Twice, broke the pinion shaft in two twice, of course I fixed it, but a lot of work for four hours use of a tractor, heard it is a weak link on the old Fords. IF the ring gear came loose, you'd be hearing lots of noises back there besides the TINK of one shaft snapping. John in Ne.



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