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Almost finished getting the 120 back together


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#1 oliver2655 OFFLINE  

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Posted January 01, 2015 - 11:47 PM

well after all that time wrestling with those darn check valves on the john deere 120 cleaning them and such, i finally got the leak to stop! :dancingbanana: But now im facing a new problem. my driveshaft is completely out of wack. the driveshaft isolator looks a bit mess up. im pretty certain this is why the driveshaft moves around so much. has anyone experienced this? what might have caused it to happen? also i would like to know if one from a 140 will work on this as well. i dont see how this thing didnt overheat! absolutely caked with crud when i tore it apart! :wallbanging: glad i tore into it now verses later down the road when it could have toasted the pump.

IMG_0438.JPG IMG_0439.JPG


Edited by oliver2655, January 01, 2015 - 11:48 PM.

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#2 T Guiles OFFLINE  

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Posted January 02, 2015 - 12:16 AM

Glad you've got the leak fixed, now for a good pressure washing



#3 KennyP ONLINE  

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Posted January 02, 2015 - 06:19 AM

Looks like it's time for new isolators. Probably just age, but if they got soaked with oil, that could have helped cause that.


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#4 glgrumpy OFFLINE  

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Posted January 02, 2015 - 12:18 PM

No expert here, but seems the rag joint or "isolator" as noted is completely gone from the joint and it us pulled tight. AND, think the metal flanges are out of position to each other. Some IH joints also have a big ball setting at end of shaft and into the input shaft to help guide it centering I guess. not sure if others had that or not. If input shaft is wobbly going into pump, probly leaks and is needing a new bearing or whatever it uses there.  Is there places on shaft that look like a weight may have fallen off?  Would think these must have been balanced at least a little??


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#5 oliver2655 OFFLINE  

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Posted January 02, 2015 - 01:56 PM

well its all cleaned up! here is a short video of what im trying to explain about the driveshaft. i do not see where any sort of balance weight might have fallen off. the input shaft also appears to be fine Attached File  IMG_0452.MOV   622KB   23 downloads

IMG_0453.JPG IMG_0454.JPG

IMG_0455.JPG IMG_0456.JPG


Edited by oliver2655, January 02, 2015 - 02:00 PM.


#6 Bmerf OFFLINE  

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Posted January 02, 2015 - 06:46 PM

Looks as if the drive shaft is bent. Take a good look at it, you will probably have to replace it. The sooner the better, before it takes out the pump.


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#7 NUTNDUN OFFLINE  

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Posted January 02, 2015 - 07:22 PM

Looks as if the drive shaft is bent. Take a good look at it, you will probably have to replace it. The sooner the better, before it takes out the pump.

 

I think Bmerf is right. After watching the video either the drive shaft is bent of the rag joint has the drive shaft out of center. Pull the drive shaft off and check to see that it is straight and get yourself a new rag joint. I think it is the rag joint has the drive shaft out of center. Definitely don't run it any longer than you have to till you get it fixed. Surprised the pump input shaft isn't already worn out.


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#8 Trav1s ONLINE  

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Posted January 03, 2015 - 07:54 AM

Definitely something bent in there and my guess is on the driveshaft.  Was the clutch apart?  Is it back together properly?






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