BX2350D 4WD Problem

[Peter22]

Hi All
I lost the 4 wheeel drive on my Kubota a few days ago , because the splined shaft connecting to the front axle had come adrift. I cleaned it up, reconnected it, and the front wheels do now drive when the 4WD is engaged, but with a very rough feel, almost graunching, when you move off. Do I need to synchronise the front axle in some way before I reconnect that splined drive shaft?
It drives fine in 2 wheel drive.
Thanks in advance
Peter

 

[GeoHorn]

Can you define “graunching”...? and “move off”...?

 

[Henro]

Hi All
I lost the 4 wheeel drive on my Kubota a few days ago , because the splined shaft connecting to the front axle had come adrift. I cleaned it up, reconnected it, and the front wheels do now drive when the 4WD is engaged, but with a very rough feel, almost graunching, when you move off. Do I need to synchronise the front axle in some way before I reconnect that splined drive shaft?
It drives fine in 2 wheel drive.
Thanks in advance
Peter

If you mean the splined driveshaft came out of one of the U joints, then it’s very likely when you put it back together you got the U joints out of phase, which will result in vibration or perhaps the graunching sound you mentioned.

There have been other threads in the recent past about this exact same issue. If you’re good at searching you may be able to find one…

If you meant something else, tell us more details!

 

[Peter22]

Can you define “graunching”...? and “move off”...?

Sorry! I guess these terms are from the other side of the Atlantic To you! Graunching is a noise like gear wheels crunching, as if you try to change gear in a manual car without using the clutch. To move off is to start moving , or accelerate from stationary.

 

[Peter22]

If you mean the splined driveshaft came out of one of the U joints, then it’s very likely when you put it back together you got the U joints out of phase, which will result in vibration or perhaps the graunching sound you mentioned.

There have been other threads in the recent past about this exact same issue. If you’re good at searching you may be able to find one…

If you meant something else, tell us more details!

thanks.
The shaft connects to the front axle, the splined front end is covered in a plastic boot.
I will search the forum...

 

[kubotafreak]

If your on pavement(concrete, asphalt) this will be common, since the wheels do not spin perfect to gear ratios. On grass or gravel the aggregate takes up the dissimilar rolling circumferences. Drive shafts should be assembled in mirrored yoke positions on the same shaft, even if it slides. The plastic cover must also be installed so it does not catch/rub. You should also take the time to ensure the ujoints are smooth with no loose or tight spots in its range of motion. They will seize up and cost you a driveshaft.

 

[Peter22]

If you mean the splined driveshaft came out of one of the U joints, then it’s very likely when you put it back together you got the U joints out of phase, which will result in vibration or perhaps the graunching sound you mentioned.

There have been other threads in the recent past about this exact same issue. If you’re good at searching you may be able to find one…

If you meant something else, tell us more details!

Thanks to all.
Yes, you were right, I had reinstalled the drive shaft out of phase (never heard of it before). It was an easy fix once I understood the problem and all is well now. You guys are stars...thanks.