How to I get the Kubota Bx24 driveshaft out????

[Shelby04861]

So I picked up a new HST cooling fan and a couple rubber boots for the shaft. I removed the 3 bolts at the front that mount the flange to the engine, as well as the the single bolt at the rear attaching it to the transmission. I also removed one clip and washer so far. I can't seem to get the shaft out. I have tried moving the front to one side, but I just don't have enough room. What am I missing here? Anyone with a link to a good video? Thanks

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[North Idaho Wolfman]

You have to remove the motor mount bolts and lift and pull the engine forward to remove that shaft.

 

[Fordtech86]

https://youtu.be/6I4dwux7BSo.

For a bx25d. Might be similar to yours?

If I remember right though I though guys were sliding the engine forward to change them.

 

[Shelby04861]

I'm just gonna go bang my head against the wall. All this for a simple fan that is designed to fail instead of causing more damage when it goes.
I am so dont have an engine hoist as t the moment. Is this just something I can do easily with a buddy? I'll take a look at the video though.
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[Shelby04861]

I also just watched a video where they say to unbolt the front flanges, and then unbolt the hub off the engine, and also remove tur clip and then there is enough space to pull the shaft out. I'll just have to look at which way is the easiest and safest to prevent damage to me and other parts. I'm okay of it's a little slower.

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[BXHoosier]

When I replaced the fan on my BX24, I jacked up the engine under the oil pan and slid it forward about 2 inches to get the shaft slid far enough to get the new fan in.

 

[B737]

what others have said is correct, the engine needs to be moved forward a few inches. The later units have a two piece coupling on the engine that affords more room to do this. However, those of us blessed with the earlier design, have the privilege of having to move the motor.

basically, unbolt the front of the drive shaft. remove the engine off its engine mounts, remove / loosen the stuff that will break when you move the engine. Then you lift the engine up about 4 inches and slide it forward a few inches to allow you space to move the shaft front and back. This allows you to change the fan. If the whole shaft needs to come out in order to rebuild the CVs, then you need to disassemble the front CV to remove the shaft from above and out.

Also the rear of the shaft where it connects to HST may or may not be keyed so watch for that as well (mine was not keyed). The bolt that holds the shaft to the HST input is often buggered up when it's removed so you may want to order an extra. Do not over torque the HST fan bolt, its something like 7 inch pounds. There are torque values for everything listed in the work shop manual. If you dont have the manual its helpful to have, or one of us can post the values if you need specific ones.

here is what i did
http://www.orangetractortalks.com/forums/showpost.php?p=342363&postcount=10

and here is a discussion about the CVs, particularly post #14
http://www.orangetractortalks.com/forums/showthread.php?t=41903&page=2


there is zero room to work without moving the motor.

 

[Shelby04861]

what others have said is correct, the engine needs to be moved forward a few inches. The later units have a two piece coupling on the engine that affords more room to do this. However, those of us blessed with the earlier design, have the privilege of having to move the motor.



basically, unbolt the front of the drive shaft. remove the engine off its engine mounts, remove / loosen the stuff that will break when you move the engine. Then you lift the engine up about 4 inches and slide it forward a few inches to allow you room to work the shaft out. Also the rear of the shaft where it connects to HST may or may not be keyed so watch for that as well. (mine was not keyed)



here is what i did

http://www.orangetractortalks.com/forums/showpost.php?p=342363&postcount=10



and here is a discussion about the CVs

http://www.orangetractortalks.com/forums/showthread.php?p=344456





there is zero room to work without moving the motor.

Thanks B737! This is pretty much what I needed. Very straightforward on the engine. Not 100% sure how to move the engine just yet though as I don't have a engine hoist and this is being done in my back yard. Any thoughts, or just two guys and muscle the engine forward? I just don't want to break more stuff is all.

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[Shelby04861]

When I replaced the fan on my BX24, I jacked up the engine under the oil pan and slid it forward about 2 inches to get the shaft slid far enough to get the new fan in.

I may try your method, as I am doing this is my back yard. I can put a board down for the jack to roll on. I'll let you all know how it goes in my main rebuild post. Thanks agaim!

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[B737]

I think a jack from under might work, its a little tight on space under there but maybe a floor jack with block of wood. Or if you have a portable engine hoist like the little ones at HF, it doesnt need to be much. The block is light enough to shove, but would be a little too heavy to hold by one guy. Just watch the grounding straps on the right side frame they are very short, and hidden on the inside of the frame. you already have 95% of the work done.

it is an awful design. This rite of passage will make you order the bxpanded under armor and not move your tractor until it's installed lol

keep us posted!
(i had to edit my post above in reply #7)

 

[lugbolt]

It wasn't "designed to fail". It was designed to cool the transmission. "Everybody" seems to hate them needlessly. If it were metal, and a stick or tree or a forest or whatever got up into it, it could easily destroy a lot more than just the plastic blades. There IS a method to their madness.

Slide the engine forward a couple inches, problem solved. I ain't done one in a while but I have done them in under 2 hours in the past. It ain't that hard. Neighbor guy up the road here cut one side of his fan, stretched it over the shaft and then bolted it. I probably would break it trying to stretch it over with my luck.

 

[Shelby04861]

It wasn't "designed to fail". It was designed to cool the transmission. "Everybody" seems to hate them needlessly. If it were metal, and a stick or tree or a forest or whatever got up into it, it could easily destroy a lot more than just the plastic blades. There IS a method to their madness.



Slide the engine forward a couple inches, problem solved. I ain't done one in a while but I have done them in under 2 hours in the past. It ain't that hard. Neighbor guy up the road here cut one side of his fan, stretched it over the shaft and then bolted it. I probably would break it trying to stretch it over with my luck.

Correct. That's what I mean when I say the fan is designed to fail. In the event a stick gets in there. you want the fan blades to break, and not cause damage. I'll check out the HF engine hoist possibly. My buddy does have one, but not sure where it is at the moment. We havent used it in about a decade, and need to find who's house it is and. and where it is buried. Most of this is basic work, but I just want to make sure I am doing it right.

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[B737]

It wasn't "designed to fail". It was designed to cool the transmission. "Everybody" seems to hate them needlessly. If it were metal, and a stick or tree or a forest or whatever got up into it, it could easily destroy a lot more than just the plastic blades. There IS a method to their madness.

I dont hate the design needlessly. I hate the design because its a terrible design. At a minimum there should be a formed shield around it to allow airflow and protection right from the factory. On the later units there is something that resembles protection but it certainly isnt very comprehensive. The older units with fan hanging out naked is terrible (imo).

 

[skeets]

Watch and learn

https://youtu.be/jX5EncUkSQo?t=6

 

[B737]

Watch and learn

https://youtu.be/jX5EncUkSQo?t=6

That machine uses a coupler at the front that OP doesn’t have. Sort of the same but not really.

 

[Shelby04861]

That machine uses a coupler at the front that OP doesn’t have. Sort of the same but not really.

I did watch this one. I was actually going to look and see, but now I know I dont have the coupler. I'll just move thr engine and get it over with.

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[B737]

I did watch this one. I was actually going to look and see, but now I know I dont have the coupler. I'll just move thr engine and get it over with.

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I used that video too as a resource, the break down of the drive shaft is very useful, but the removal of the drive shaft, and fan installation on machines without the coupler are a totally different ball game, we have both learned the hard way haha