Found my 4wd problem. Now how do I fix?

scesnick · Jul 18, 2006

My 4wd on my 2000bd went on the fritz so I look the advice of Mark777 and checked the drive shaft and sure enough it is disconnected in the front where it does into the front diff.I did'nt look real close I had my baby daughter in my arms but it is totally disconnected, just laying there. I did see alot of oil so I'm guessing at the least a few seals will be needed. I do not have a manual ( yet) I was wondering if anyone knows of a site that can show me the diagram of parts in that area? or just explain what that area intails if possible. Thnaks a million.

I guess I should be ordering the manual soon. Then I wouldn't be buggin' you guys.

dfkrug · Jul 18, 2006

My JDs (Yanmars) use a roll pin to hold the front U-joint of the
drive shaft to the front axle input shaft. If you did not have an
oil spill, I would have guessed the roll pin failed. But the oil spill
indicates a larger problem, like a cracked axle casting. Of course,
the roll pin could have failed and the the wobbling U-joint could have
beat the **** out of the input shaft, causing the seal to leak. My
drive shaft has a plastic tube that covers it and would keep it in
place for a whille if the U-joint failed.

Kays Supply · Jul 18, 2006

Check hoyetractor.com. They have some parts pages out of manuals to order from. You might be able to see what you need there.

scesnick · Jul 18, 2006

dfkrug,

Just by quickly looking at the problem i would say that my axle casting is o.k. hopefully. I would think that the seal is probably beat to death.

It seems as if all I would have to do is pull back on the driveshaft, since it has a spring, and put the driveshaft back on the input shaft. But i need a diagram to see what all is in there and what went south on me.
i really don't need my tractor for a few weeks so I guess I will be ordering the manual real soon.
thnaks for the info...

dfkrug · Jul 18, 2006

If your driveshaft has a spring, it is different from mine. Mine
is completely encased in 2 plastic tubes with a hose clamp keeping
them in position. This tube protects the shaft and makes the
owner overlook the zerks on the 2 U-joints. I just had mine out
to replace the front axle pivot shaft and bushings. It is very hard
to get grease in there.... Shot after only 750 hrs.