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  #1  
Old 11-07-2023, 08:44 PM
302wSBF 302wSBF is offline
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Default Cub 149 pump shaft - am I doomed?

I had my front pin on my driveshaft shear off this weekend and noticed the pump shaft is pretty hogged out. Does this commonly fail? Is it a nightmare to replace? I found very little info online.

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  #2  
Old 11-08-2023, 08:56 AM
finsruskw finsruskw is offline
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Not if you can locate a new pump!
Might be time for a replacement and it will be much easier because it looks like the pump has to come completely apart to remove the shaft.

Part number for the shaft is SU-3101867 for all the good that will do!
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  #3  
Old 11-08-2023, 10:21 AM
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I have a ported pump out of an 1862. $75.00 plus the shipping. You would need to up grade the drive shaft. I had a 149 that I used part of a 2000 series on the front where it bolts to the engine. I have a 2000 series shaft that you can have for $20.00 if you buy the pump. PM me if you have any questions.
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File Type: jpg IMG_3533.jpg (22.1 KB, 171 views)
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Old 11-08-2023, 10:35 AM
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"Is it a nightmare to replace?"
Fools rush in where wise men fear to tread.....
Here's where you'd be going....
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File Type: jpg Screenshot 2023-11-08 092719.jpg (18.7 KB, 173 views)
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  #5  
Old 11-08-2023, 11:01 PM
302wSBF 302wSBF is offline
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Do the shafts ever fail on people? I can't seem to find a lot of threads on replacing them, so I'm hoping this might not be an urgent fix.
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  #6  
Old 11-09-2023, 07:59 AM
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ol'George ol'George is offline
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Well they usually don't break off, but they do wallow the coupling bore out if they are worn undersize/loose/sloppy.
Problem is the shafts, if you can find them, are expensive, and if you are not mechanically inclined, and very careful keeping the hydro extremely clean inside the outcome is not the best.
Sam has one that I think is more than fair priced and it is a plug and play.
Or you can reuse yours and have Sam's spare on hand.
Spare parts are always a good thing.
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  #7  
Old 11-09-2023, 09:36 AM
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302, getting deep into these hydro,s is best to get some odds in your favor. try make a aquaintance with a automatic trans. mech. possibly a enthusaist. hydro ,s are a pressure hydraulic system. It would great a to talk a tractor mech. in teaching some night classes on repair and rebuilds ,until the tractor companies loosen up and start making standard trans. again.
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  #8  
Old 11-09-2023, 10:41 AM
Frank1541 Frank1541 is offline
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There's a shaft on FleeBay for $27. Looks good. Rebuilding the hydro is not difficult at all. There are plenty of videos, etc that show how to do it. Have lots of space and take pictures and notes during disassembly. I have done this several times with good results.
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  #9  
Old 11-09-2023, 04:35 PM
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The pictures that I posted above are from this manual.
If you attempt this fix, it would behoove you to get it.
You can buy it online, google for Supplement GSS-1369.
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File Type: jpg Screenshot 2023-11-09 152601.jpg (23.0 KB, 128 views)
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  #10  
Old 11-09-2023, 05:49 PM
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Down load the service manual for the 149. It covers what you would need to do to replace the shaft.
https://www.onlycubcadets.net/forum/...ead.php?t=4644
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