North Idaho Wolfman
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Kubota B7100 4x4 pilot bushing help
- Thread starter BBRE
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torch
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B7100HSD, B2789, B2550, B4672, 48" cultivator, homemade FEL and Cab
What, exactly, are the symptoms you are experiencing? Was the bushing an OEM one sourced from Kubota, or an aftermarket one?
I know (oh boy do I know!) that it can be tricky getting the FWD shaft engaged while inserting the transmission shaft through the clutch at the same time -- they are on an angle to each other -- however, the end of the transmission shaft doesn't make it to the pilot bushing in the crankshaft until well after the driveshaft is engaged. If you used a clutch-centering tool when you bolted the clutch to the flywheel, the clutch itself should guide the shaft into the pilot bushing with no possibility of damage to the bushing.
You did use a centering tool when installing the clutch, right?
I know (oh boy do I know!) that it can be tricky getting the FWD shaft engaged while inserting the transmission shaft through the clutch at the same time -- they are on an angle to each other -- however, the end of the transmission shaft doesn't make it to the pilot bushing in the crankshaft until well after the driveshaft is engaged. If you used a clutch-centering tool when you bolted the clutch to the flywheel, the clutch itself should guide the shaft into the pilot bushing with no possibility of damage to the bushing.
You did use a centering tool when installing the clutch, right?
Unfortunately there are no listings for a b7100 centering tool and I have no idea what the diameter and spline count is for that tractor. Do you have any idea where I can find that information or a part number?.
It is noisy like a clutch bearing going out when I ouch the clutch in. Same feel and sound it had before I replaced it.
GreensvilleJay
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BX23-S,57 A-C D-14,58 A-C D-14, 57 A-C D-14,tiller,cults,Millcreek 25G spreader,
you could probably use a broom handle or similar for the 'centering tool'.BTDT, 2000, to install clutch in 1st D-14.Lotta hours of use/abuse on that tractor, still great. Since then learned a Chevy tool is the same diameter and teeth.
North Idaho Wolfman
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The sounds your describing are not the pilot bearing but the throw out bearing being bad.
One common mistake is putting the throw out bearing on backwards, yes it can be done on this model.
One common mistake is putting the throw out bearing on backwards, yes it can be done on this model.
fried1765
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Kubota L48 TLB, Ford 1920 FEL, Ford 8N, SCAG Liberty Z, Gravely Pro.
It sounds like a throw out bearing but it is not. That was changed also and worked perfectly for about a month the one replaced was not bad either but since I took it off I put on the new one
North Idaho Wolfman
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just because something worked perfectly for a month doesn't mean it failed.
and like I said they have know to be installed backwards and they work for awhile then they fail.
Pilot bushing issues do not make noise on these units.
They can be completely out and you never know it.
I think you need to open it up and see what going on, my guess would be a bearing on the front of the transmission.
But without a video with sound on the issue its all just a wild guess.
My question would be why did it work perfectly after being replaced the first time and quietly. I will get a video. May take a while
North Idaho Wolfman
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I'm not sure what changed, you might find the pilot bushing has failed, but if it has then it's not the bushings fault it's the out put shaft or bearings on that shaft that are causing the failure, or it does have a bent mounting plate.
In the pictures I don't see axle bars, and without those its very very easy to bend the tractor at that plate mount which can cause all the issues your experiencing.
North Idaho Wolfman
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torch
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B7100HSD, B2789, B2550, B4672, 48" cultivator, homemade FEL and Cab
As others have implied, you don't have to match the splines, just the ID of the splines and the ID of the pilot. That will hold the clutch disk centered on the crankshaft while you torque down the mounting bolts, after that the springs will keep it in place.
Runs With Scissors
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L2501 TLB , Grappel, Brush Hog, Box Blade, Ballast box, Forks, Tiller, PH digger
From my reading of this, NIW is saying that the bushing being worn out could be a "symptom" , not necessarily the actual "problem".
I could envision how replacing the bushing quieted it down, and simply "masked" the actual problem for 30 days or so.
Either way, it appears as if your going to get a second shot at it, so take some good pics and be sure to check the plat at the input shaft.
I could envision how replacing the bushing quieted it down, and simply "masked" the actual problem for 30 days or so.
Either way, it appears as if your going to get a second shot at it, so take some good pics and be sure to check the plat at the input shaft.