B80 8 speed

[AHS 1,443]

My B80 is my plow ride! I have noticed oil on the rear end axle seal on the right. I have noticed an o ring(??) pushed out. Is this the sign of a wheel bearing going bad?  Im 99% sure that last summer the wheel bearing wasn’t going bad. Rocked the tire and no play. Im all ears. The B80 is tough!!

[953 nut 55,753]

That is your axle seal, seems it may not have been properly seated when installed. If you remove the wheel hub, slide a piece of pipe that is snug to the axle over the axle. Tap on the pipe with a small hammer it should true the seal up and slip it into place.

[ebinmaine 68,281]

Richard's advice in the previous post is spot on.

If that wheel hub isn't easy to remove you could potentially make a tool to slide over half of the axle.

Really not the best way to do it but it is a possibility.

 

Jack up that side of the tractor so the wheel is hanging free.

Have someone lift the wheel up and down a little so you can see if there is any axle bearing play. Should be next to none.

 

 

[ri702bill 8,485]

Hmmm...... judging by the wetness on the flange and axle, along with the drip spots on the floor, I'm inclined to think that removing the hub will be easy - all juiced up from the seal being out of place.

A tip - remove the square head setscrew completely - rotate the hub so the screw is at 12 o'clock - spritz some penetration oil into the screw hole - helps break the rust.

Replace the screw with a NEW one if possible - torque it to spec.

Bill

[stevasaurus 22,857]

I hate to say it, but that sure looks like an "O" ring to me.  I'm wondering if you have a seal behind that.  If it is an "O" ring, that is not supposed to be there.  Take off the hub and dig that out and see what is going on in there.  

  Measure the diameter of your axle, I'm betting they are 1" and not 1 1/8".  The axle seal for 1" axles is SKF #9815.  If they are 1 1/8" the seal is SKF #11050.  

[Jeff-C175 7,203]

4 hours ago, 953 nut said:

piece of pipe

 

Or just use the hub itself as a slide hammer?

[Pullstart 63,090]

I’m with Steve.  That looks like a less than stellar previous repair.

[AHS 1,443]

On 12/31/2021 at 7:34 AM, 953 nut said:

That is your axle seal, seems it may not have been properly seated when installed. If you remove the wheel hub, slide a piece of pipe that is snug to the axle over the axle. Tap on the pipe with a small hammer it should true the seal up and slip it into place.

 I had the hub of last summer and found out it was the drive pulley seal. I have a new seal, (somewhere!). I’m sure that will come of easy. It’s 1 1/8”. Ok, what should I use for pipe? The piece of pipe has to be no bigger than the seal, so it can push the seal in? Or should you just need to push the seal flush with the transmission?

[953 nut 55,753]

5 minutes ago, AHS said:

just need to push the seal flush with the transmission?

I keep a scrap piece of 1 1/4" PVC for the 1 1/8" axles, it measures about 1.35" Inside Diameter. For the 1" seals I use 1" PVC which measures 1.03"ID.

[rjg854 11,474]

You could also use the hub as long as it slides easily on and off the axle.  The seal should be flush with the outside of the casing.

[rmaynard 15,592]

I have seen tractors where the owner pushes one seal (that is leaking) further into the case, then puts a new one on top of it. Not recommend. Check to see if what you are looking at is a seal (should be hard) or an o-ring (should be soft). When checking for axle bearing play, about 1/8" in/out is good,  any up/down is bad.

[AMC RULES 37,134]

 Just throwing good money after bad, and you'll still have a leaking axle seal.

HIGHLY recommend you do it right or not at all.  

[rmaynard 15,592]

16 minutes ago, AMC RULES said:

 Just throwing good money after bad, and you'll still have a leaking axle seal.

HIGHLY recommend you do it right or not at all.  

If this was directed to my comment, I was trying to say that some have done the double seal, but I also said that I don't recommend it. I'm am with you, do it right or not at all.  

[AMC RULES 37,134]

Just saying Bob, been there, done that, and all I got was pissed off!  

[AHS 1,443]

22 hours ago, 953 nut said:

I keep a scrap piece of 1 1/4" PVC for the 1 1/8" axles, it measures about 1.35" Inside Diameter. For the 1" seals I use 1" PVC which measures 1.03"ID.

 

22 hours ago, rjg854 said:

You could also use the hub as long as it slides easily on and off the axle.  The seal should be flush with the outside of the casing.

 I’ll use 1 1/4” pipe or the hub. This is the transmission that had a quart of water (at least!) in the tranny when I got it… the third tranny flush later, and running some kerosene thru it. The second year of plowing and it the tranny works good. I guess the seals were just old…

[stevasaurus 22,857]

We are still not sure what you have in there.  Is it a seal or an "O" ring??  Regardless, I would take out whatever that is and put in a new seal.  There is a reason what ever you have there is falling out.  

[Wheelhorse#1 1,698]

 

At least it should come right off.I’ve done 3 of these so far and never had a problem removing them.

I use a pick that’s  bent at a angle,  hammer it through and pry it out .

Edited January 13, 2022 by Wheelhorse#1