Help me identify this noise.

[clemsonfor]

I haven't even looked at the parts breakdown or opened it up. I heard this noise coming out of the garden after disking part of it under. I think it may be a bearing noise. Look at this video I made and posted to YouTube so I could link it here.

 

[winston1]

My thought would be bearing. TRANSMISSION_INTERNAL: Yanmar Tractor Parts

 

[clemsonfor]

My thought would be bearing. TRANSMISSION_INTERNAL: Yanmar Tractor Parts

Yep I was just looking at those. I think someone took that shaft out on one post before and it seems like an in depth job, not hard just several steps to get it out. I know @California replaced one of those housings...was it him or someone else? Maybe even you @Winston?

 

[clemsonfor]

I should also note that the sound is not heard at all from the opposite side.

 

[California]

Yep I was just looking at those. I think someone took that shaft out on one post before and it seems like an in depth job, not hard just several steps to get it out. I know @California replaced one of those housings...was it him or someone else? Maybe even you @Winston?

Me. Here's where I described the project. But I was replacing a broken housing, so I put in a replacement housing complete instead of tearing it down.

That does sound like the outer or inner bearing.

Tore the 3-point pin out of the axle housing! $500 repair

When I bought the Yanmar YM240 in 2003 it was neglected with loose bolts everywhere. I reset the right side 3-point pivot pin - 'hinge" - with red (permanent) Threadlocker, noted the sloppy fit of the threads, then forgot about it. Years later the hinge pin fell out in 2017 taking out a small...

www.tractorbynet.com

 

[winston1]

never been in one like yours but I think to remove the axle you have to pull the pto unit to access a bolt that holds the big bull gear on. That allows the axle shaft to come out. Not sure that pulling the pto unit might be your best move. Pretty much anything you do in the rear end is going to require that anyway. It will also let you take a better internal look.

 

[clemsonfor]

Somewhere I am almost positive I saw someone press that shaft out of that housing? Maybe the member a girl and her tractor, she has some posts that detail some work...maybe that's over on the Hoye forum? Someone has done it somewhere on these forums and the post has some age on it because bot was years ago I read it.

 

[clemsonfor]

never been in one like yours but I think to remove the axle you have to pull the pto unit to access a bolt that holds the big bull gear on. That allows the axle shaft to come out. Not sure that pulling the pto unit might be your best move. Pretty much anything you do in the rear end is going to require that anyway. It will also let you take a better internal look.

I think the PTO unit does need to be removed to get that but off the bull gear. Its detailed somewhere, I just can't remember where and the search feature here isn't any good when I looked. I will have to use Google to try to force it to find the post here or at Hoye...after I just look on their site I guess for it. Maybe I'll message Aaron and see if he remembers it off his site?

Hour for sure has a video on pulling the PTO

 

[winston1]

Agirlandhertractor made a nice video of her 1601. It is quite different than yours. Yanmar Rear Axle Seal Replacement

 

[California]

I think to remove the axle you have to pull the pto unit to access a bolt that holds the big bull gear on. That allows the axle shaft to come out.

Yes.

That thread I linked has photos. After the big nut is removed and the bull gear slipped off the axle, the inner axle bearing came out of the housing easily, as the whole housing and everything slipped off.

I have no idea if the outer bearing can be removed from the axle shaft without tearing down the whole assembly. I think I remember reading that this is necessary.

 

[clemsonfor]

Yes.

That thread I linked has photos. After the big nut is removed and the bull gear slipped off the axle, the inner axle bearing came out of the housing easily, as the whole housing and everything slipped off.

I have no idea if the outer bearing can be removed from the axle shaft without tearing down the whole assembly. I think I remember reading that this is necessary.

I was hoping that a slide hammer might pull the outer....but really didn't have much confidence in this actually working though.

 

[California]

I Just looked in the YM240 shop manual and flat rate manual. 1.5 hours to remove the axle housing then a few tenths for either inner or outer axle bearings. (For someone who does this all the time.)

The inner bearing is a press fit onto the axle shaft, outer bearing is press fit onto the axle shaft then the whole axle/bearings assembly is press fit into the housing.

 

[clemsonfor]

I Just looked in the YM240 shop manual and flat rate manual. 1.5 hours to remove the axle housing then a few tenths for either inner or outer axle bearings. (For someone who does this all the time.)

The inner bearing is a press fit onto the axle shaft, outer bearing is press fit onto the axle shaft then the whole axle/bearings assembly is press fit into the housing.

Well then that's much better than I thought...from what I remembered reading I was thinking this was an all day job...bit what I saw must be a totally different design.

So are we thinking that whole shaft pulls to the outside once I get that Bull gear off from the inside?

I can't see how that job would be done in 1.5 hours. That's why I couldn't be a mechanic, I'd spend at least half that time cleaning up surfaces to reseal something!

 

[California]

So are we thinking that whole shaft pulls to the outside once I get that Bull gear off from the inside?

Yes, everything shown in that final photo of the old housing. It slides right off. Well after you break the bond of the paper gasket, which shouldn't have been glued in place.

 

[clemsonfor]

Yes, everything shown in that final photo of the old housing. It slides right off. Well after you break the bond of the paper gasket, which shouldn't have been glued in place.

This is a VN machine. They use paper gaskets and some of the strongest most difficult to remove glue/sealant that I have ever come across. Take a wire wheel to get it off, razor blade does not easily remove it. Good news is that it's so solidly adheared that of you don't get it all, (I use RTV) that the RTV just seals to it and then the other half of the surface, never had leaks. I try to get 100% of it off but sometimes I have not.

 

[clemsonfor]

Spoke with Hoye, I assume Aaron by there email message system. I explained what's going on and asked how the shaft pulls out if it does or does the assembly need to be removed and it pressed out. He said the shaft "should" pull out on e the bull gear is removed. Inner bearing like was said comes off after bullgear on inside. Now I said "should" cause as we know this is a 45 year old tractor that I don't know but the last 12 years or so history on. So it should come out. Worse case I guess is I can't get enough leverage to pull it out and have to remove it to tap it out with a dead low and block. Said bearing friction should be all that you feel resistance wise bit again 45 year old tractor....

I think I'm starting the job tonight

 

[ponytug]

Good luck!

 

[California]

The Labor Flat Rate Manual says 1.5 hours to remove/install the whole assembly then a few tenths each added to replace the inner/outer bearing. So apparently whoever wrote the manual didn't expect the axle to slide out as you describe. We'll see ....

 

[clemsonfor]

The Labor Flat Rate Manual says 1.5 hours to remove/install the whole assembly then a few tenths each added to replace the inner/outer bearing. So apparently whoever wrote the manual didn't expect the axle to slide out as you describe. We'll see ....

Well I'm probably an hour into it. Axle not out. I'm beating on it pretty good and it sounds pretty solid. I'm thinking I will have to take the assembly off to press it. Like I said I beat on it pretty good on the hub with a 5 pound dead blow.

 

[clemsonfor]

You know I'm sitting here thinking after dinner. I quit for the night. I didn't pull the bolts out of the seal retainer. The plate that holds the seal in. I'm sitting here thinking that would capture the bearing as the shaft goes through the retainer...the bearing can't obviously come out the same hole!! I'll take those bolts out and see if it slides out.