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  #1  
Old 09-25-2022, 10:27 PM
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nra1ifer nra1ifer is offline
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Default Cub 123 transmission area sprang a leak!

I have not been on the forum for quite some time, but my butt hasn't been in the seat of my Cub 123 for a long time, either. Well, today was the day...... and it was short-lived.
I always keep the #1 tiller on this GT, and I got it out today to play in the garden. Made about 3 passes around a section of the garden when I heard a different, grinding kind of noise. I shut off the tractor, then noticed transmission fluid pouring out of the rear end in the area of the transmission oil filter. I poked around that area and found a loose bolt, a washer was on the ground. No nut found anywhere. I have never really done anything in this area of the tractor, except for cleaning the rear end and replacing the transmission fluid and filter when I acquired this GT 10-15 years ago, so I don't know much about it.... BUT.... I have a service manual and a parts manual! Looking at both, I believe there is something related to the flexible coupling disc and the related bolts (item 50 in the parts manual). There was a worn-through slice in the top side of the oil filter.
Luckily I have a Troy-Bilt Horse and a Wheel Horse C160 w/tiller (and even a little 4-stroke Mantis!) as backup.
So, I guess I get to split the tractor and fix it!

Any tips or pointers????
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Cub Cadet 123, Wheel Horse C160, Craftsman PGT9000, Speedex 1631
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Old 09-26-2022, 07:21 AM
R Bedell R Bedell is offline
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Sounds like the Flex Disc Coupler let loose. Time to jack up the tractor, and take a look. Let us know what you find.
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  #3  
Old 09-26-2022, 08:31 AM
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nra1ifer nra1ifer is offline
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Thank you... I sure will.
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Old 09-26-2022, 03:02 PM
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nra1ifer nra1ifer is offline
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Got the 123 split apart…. That wasn’t too bad. Found that one of the bolts on the pump drive shaft/flex disk had loosened over time, wore it’s way through the flex disk, fell out (that’s what I found on the ground), and that part of the shaft dropped down enough to chew a hole in the upper side of the oil filter.
I have ordered a new flex disk (from CCS), and Napa has a new filter coming for me. While I am waiting, I will go by TSC and get some stainless bolts and some nylock nuts for putting it back together.
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Old 09-26-2022, 03:14 PM
R Bedell R Bedell is offline
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Looks like you stopped the tractor in the "nick of time" before carnage took place. We have seen photos of catastrophic failures before. Glad to see you caught before a major parts destruction.

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CC Models: 100, 105, 1450, 782, (2) 784, & 2072

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  #6  
Old 09-26-2022, 03:41 PM
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Thank you... I feel very fortunate.

For the engine-end of the drive shaft, can you suggest where I might find a dowel pin? IH - 19837- R1 in my manual. One end of the dowel I have is sheared off at the shaft.
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  #7  
Old 09-26-2022, 05:44 PM
BKsCC BKsCC is offline
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Quote:
Originally Posted by nra1ifer View Post
Thank you... I feel very fortunate.

For the engine-end of the drive shaft, can you suggest where I might find a dowel pin? IH - 19837- R1 in my manual. One end of the dowel I have is sheared off at the shaft.
I think this is what you're after: https://ccspecialties.org/pics/drivepinlarge.jpg

From this website: https://ccspecialties.org/clutch_driveline_rearend.html

Do a "CTRL+F" and type in "IH-19837-R1" to find it. They have .001 and .002 size over pins too if yours is a little rounded out.

Alternatively, if you can get the bits of it together for a measurement you can probably get a suitable replacement at McMaster-Carr.
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Old 09-26-2022, 06:07 PM
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nra1ifer nra1ifer is offline
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Thank you so much. I have sent CCS an email asking if they can throw in a dowel pin, and we'll arrange payment.... (hoping it doesn't require a separate $10 shipping fee).
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  #9  
Old 09-26-2022, 06:17 PM
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Oh!!! While cleaning the 123 I FOUND the nut! (No, I didn't look in the mirror.... )...... not going to use it, but I found it..... it was laying in the oil/dirt on the frame rail.
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  #10  
Old 09-26-2022, 06:18 PM
finsruskw finsruskw is offline
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Looks like it's time to break out power washer for a little house cleaning in there while you are at it.

Check the front coupler while you are at it as well.
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