Cub won't shift into Third!

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farmdreamer
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Cub won't shift into Third!

Postby farmdreamer » Wed Jul 26, 2017 8:26 am

Hi all, can anyone help me troubleshoot my cub issue.
About 5 years ago, I restored my cub from front to back. I believe when I rebuilt the trans, I did test it by manually rotating the drive shaft and shifting into each gear to make sure there was no issues before assemble to the rest of the tractor. Once I had the tractor all together, It would not shift into the third gear. The reverse, 1st and 2nd goes in fine but will grind if engine is not idled down. Maybe I didn't adjust the clutch fingers right but that is not normally me. The pedal was also adjust for 1 inch of free travel. Like I said you can shift but will grind trying to get into the gears but the third will not even engage, seem as though it need to shift a little more to get into position. Any help is appreciated. I know it been quit a bit of time to be asking this, but I guess I never got around to repairing it, probably because I never use the third gear :D .


Thanks all!

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Shane Nelson
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Re: Cub won't shift into Third!

Postby Shane Nelson » Wed Jul 26, 2017 8:33 am

My guess is the ball under the sliding shaft slipped out upon reentry and is at the end of the shaft not letting it go into third. It's a simple fix if you pull the top plate off the transmission and catch the ball and spring before they fall into the bottom of the transmission while working on it. It's either that or your fork is broken in the normal place they break, that's a simple fix as well just need to pull it out and weld it back together.
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farmdreamer
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Re: Cub won't shift into Third!

Postby farmdreamer » Wed Jul 26, 2017 8:45 am

Thank you, I'll take a look tonight!

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Urbish
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Re: Cub won't shift into Third!

Postby Urbish » Wed Jul 26, 2017 10:11 am

Clutch fingers adjusted to 1-1/8" to 1-1/4"? How thick is your gear oil? Any water or snake oil products thinning the gear oil? Chipmaker has you covered regarding your 3rd gear issue. If you take the top cover off, you can manually slide the gears (using a long screwdriver or pry bar). Remember, 2nd/3rd gear slider is on the left side, with third being in the forward position (opposite position from the what the top of the shifter is doing). Also, did you replace the pilot bushing in the flywheel? It could be 'grabbing' the clutch shaft if it wasn't reamed after installation.

farmdreamer
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Re: Cub won't shift into Third!

Postby farmdreamer » Wed Jul 26, 2017 1:48 pm

I will be checking the fingers tonight, I believe if I remember the trans was filled with SAE 90W. I did replace all the clutch parts during the restoration.

Thanks

farmdreamer
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Re: Cub won't shift into Third!

Postby farmdreamer » Wed Jul 26, 2017 5:20 pm

Ok, I removed the shifter plate and use a large screwdriver to shift the fork to third gear, it clicked right in. Did the same for all the gear speeds, great! I noticed that on the bottom of the shifter there are slots to move the shifter ball into them. They are not all the same lengths! The shifter moves the shifter fork but not enough to engage the third gear. The movement is limited to the length of the slots. Is there a direction the shifter fork rods go into the trans housing? Is the notch in the shifter fork rod where the bolt goes through in the center? Hmmmm, something is not right. :?


Thanks

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Don McCombs
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Re: Cub won't shift into Third!

Postby Don McCombs » Wed Jul 26, 2017 7:50 pm

This is the correct orientation. Should not fit any other way.

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Shane Nelson
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1961 Cub Cadet Original
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Re: Cub won't shift into Third!

Postby Shane Nelson » Thu Jul 27, 2017 6:27 am

Check the tightness of the bolt on the shifter fork (should be a 5/16" bolt, 1/2" head), it could be a little loose or the shifter fork may be broken on the underneath side. Both ours were broken there and wouldn't shift right.
God is good, all the time!
Every home is a school, what are you teaching?
Make prayer a 1st priority, instead of a last resort.
Circle of Safety


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