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Rear wheel removal #214390
09/18/08 9:03 pm
09/18/08 9:03 pm
Joined: Sep 2005
Posts: 52
Kentucky
S
smcmanus Offline OP
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smcmanus  Offline OP
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S
Joined: Sep 2005
Posts: 52
Kentucky
The rear axle on my 850 MKIII won't slide out of the hub. This is the disc brake model. I think you simply unwind the right side axle and it should pull right out, then the spacer falls out and the wheel comes out of the cush drive and pull the wheel out. The axle will unwind from the left stub axle. My problem is the axle won't come out. I guess the axle is siezed in the sleeve. Any good ideas?
Thanks
Steve

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Re: Rear wheel removal [Re: smcmanus] #214400
09/18/08 9:51 pm
09/18/08 9:51 pm
Joined: Mar 2006
Posts: 3,657
Norfolk, UK
L.A.B. Offline
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L.A.B.  Offline
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Norfolk, UK
Did you slacken the right-hand lower shock mounting bolt? As it secures the caliper mounting plate in position. The caliper mounting plate is the wheel spacer, and it could possibly be stopping the axle from sliding out if the plate isn't free?
After the axle has been withdrawn, the caliper and its plate has to be swung out of position and tied up out of the way, before the wheel can be removed.

Re: Rear wheel removal [Re: L.A.B.] #214618
09/20/08 4:29 pm
09/20/08 4:29 pm
Joined: Oct 2004
Posts: 243
Seattle, WA USA
Dr_Hiller Offline
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Dr_Hiller  Offline
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Seattle, WA USA
LAB,

The correct order of operations on Mk3 rear wheel removal was a bit of a mystery to me as well. Thanks for clearing that up.


Ride safe,
David
--------------------------

1971 Norton Commando (parts bucket mongrel)
Re: Rear wheel removal [Re: Dr_Hiller] #214632
09/20/08 6:45 pm
09/20/08 6:45 pm
Joined: Mar 2006
Posts: 3,657
Norfolk, UK
L.A.B. Offline
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L.A.B.  Offline
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Norfolk, UK
Most 850 MkIIIs originally came with a caliper support hook (part 06-6360) that clipped onto the frame seat rail, so that the caliper and plate could be hung well out of the way during wheel removal: Item 24.

Re: Rear wheel removal [Re: L.A.B.] #214673
09/21/08 1:06 am
09/21/08 1:06 am
Joined: Aug 2001
Posts: 2,584
Springfield Nebraska
Richrd Online content
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Richrd  Online Content
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Posts: 2,584
Springfield Nebraska
Unless the stub axle is broken inside, (highly unlikely) the Axle has to come out. the most common cause is the weight of the wheel binding the axle. use your foot under the wheel to bounce is a bit as you pull on the axle.

I have seen some that required force. I use a slide hammer with two hooks that I hold behind the hex with one hand.



Last edited by Richrd; 09/21/08 1:18 am.

Rich (member ThreeMustGetBeers)
"It's not always about going fast. Sometimes it's nice to slow down" (Wendy E.2016)

69 bonney
72 commando
75 commando interstate
06 Suzu..Suzu.. uh appliance
couple of beesas a ducati
and the Snake Bike
and a Honda?
Re: Rear wheel removal [Re: Richrd] #214859
09/22/08 3:23 am
09/22/08 3:23 am
Joined: Feb 2008
Posts: 338
FLORIDA
A
Alan Prudhomme Offline
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Alan Prudhomme  Offline
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Joined: Feb 2008
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FLORIDA
I have had problems where the chain adjuster binds on the axle and holds it from coming out. Sometimes you have to push the adjuster back in towards the swing arm with a screwdriver and twist while pulling on the axle to get it out. A good pair of vice grips will aid you here. Filing the axle holes in the adjuster will cure this after the axle is out. Remember you also have to loosten the bottom shock bolt when you adjust the chain or it will stop the wheel from moving.

Re: Rear wheel removal [Re: Alan Prudhomme] #214883
09/22/08 1:46 pm
09/22/08 1:46 pm
Joined: Oct 2007
Posts: 234
Ohio
Ron Leisner Offline
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Ron Leisner  Offline
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Ohio
Quote:
The axle will unwind from the left stub axle. My problem is the axle won't come out.


If the axle is unwound from the stub axle, you should have some of the axle visible on the swingarm side of the wheel. If so, you should be able to persuade the axle out with slide hammer or improvised tool. Make sure the adjuster is loose and the caliper mount is loose.

If there is no axle visible, then you indeed have the axle seized in the hub. You may have to resort to cutting the axle, removing the wheel and driving/pressing the remainder of the axle and bearings from the hub.
Ron L


Ron L
1973 MkV 750 Roadster
1974 850 Interstate
1975 850 Cafe Racer
1968 750 Fastback
1967 P11
1969 Ranger 750
Re: Rear wheel removal [Re: Ron Leisner] #215015
09/23/08 10:05 am
09/23/08 10:05 am
Joined: Sep 2005
Posts: 52
Kentucky
S
smcmanus Offline OP
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smcmanus  Offline OP
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Joined: Sep 2005
Posts: 52
Kentucky
Yes, the axle will unscrew from the left stub axle. No, it will not come out from the hub. It must be siezed in the hub. Even though it unscrews from the stub axle, the axle bolt head on the right side remains tight and is hard to turn with no play at all. I was thinking I might have to cut the head off the axle. Any other ideas?
Thanks
Steve

Re: Rear wheel removal [Re: smcmanus] #215021
09/23/08 12:21 pm
09/23/08 12:21 pm
Joined: Aug 2001
Posts: 2,584
Springfield Nebraska
Richrd Online content
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Richrd  Online Content
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Joined: Aug 2001
Posts: 2,584
Springfield Nebraska
if the bolt head is still tight to the swingarm, then it did not unscrew. Are you sure that the stub axle is not turning when you turn the wrench? This wold happen if the squared shoulder is not engaged in the slot, but you should see this and and could put a wrench on it to hold it.

Axles can break, but I have never heard of stub breaking.


How can you cut the bolt head inside the swingarm? If you cut it on the outside, the wheel still will not come out because the shaft will still be there with two spacers holding everything together.

maybe the axle is stripped inside the stub? (just thinking to myself) This is one I'd like to see, let us know what you find.


Rich (member ThreeMustGetBeers)
"It's not always about going fast. Sometimes it's nice to slow down" (Wendy E.2016)

69 bonney
72 commando
75 commando interstate
06 Suzu..Suzu.. uh appliance
couple of beesas a ducati
and the Snake Bike
and a Honda?
Re: Rear wheel removal [Re: Richrd] #215031
09/23/08 1:44 pm
09/23/08 1:44 pm
Joined: Oct 2007
Posts: 234
Ohio
Ron Leisner Offline
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Ron Leisner  Offline
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Posts: 234
Ohio
If the axle is unscrewing from the stub, this will force the swingarm to spread if the axle is seized in the hub. As Richard points out, make sure the stub is not turning with the axle. If you are certain the axle is fully unscrewed from the hub and you stil cannot extract the axle with a slide hammer or levers or a puller, then cutting the axle is your only alternative.

If you attempt this action, I suggest you cut as close to the brake rotor as possible. In fact, I would try to unbolt the rotor, slide it outward as much as possible and remove the studs to try to cut close to the hub. This will allow more room for the seized axle and hub to be removed from the paddles in the sprocket. You will be cutting through both the wheel spacer and axle, but I don't see any other choice.

It sounds as if the axle has seized to the bearing spacer. Once you have freed the wheel, you should be able to drive the bearings and spacer out of the wheel with the remaining axle. Then you will need new bearings, a new bearing spacer, a new axle, and a new wheel spacer. Whew! Good luck!


Ron L
1973 MkV 750 Roadster
1974 850 Interstate
1975 850 Cafe Racer
1968 750 Fastback
1967 P11
1969 Ranger 750
Re: Rear wheel removal [Re: Ron Leisner] #215041
09/23/08 3:30 pm
09/23/08 3:30 pm
Joined: Sep 2005
Posts: 52
Kentucky
S
smcmanus Offline OP
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smcmanus  Offline OP
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Joined: Sep 2005
Posts: 52
Kentucky
Thanks for all the response. The right shock mount is off, and the rear brake is off. Yes, I'm sure the axle is unwinding from the stub axle and I can see into the cush drive area and watch it unscrew.

I will soak it in snake oil for a while. I don't really plan on getting deep into this project before Christmas.

Have a nice day
Steve

Re: Rear wheel removal [Re: Ron Leisner] #215176
09/24/08 3:42 am
09/24/08 3:42 am
Joined: Feb 2008
Posts: 338
FLORIDA
A
Alan Prudhomme Offline
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Posts: 338
FLORIDA
Sounds like you have a mess on your hands.... I have 2 spare MARK 3 hubs and just took a look at them, there is realy only 1 thing in the hub to hang your axle up, and that's the sleve bearing 06-5550. It could be rusted to the axle. the sleve seal 06-5545 (spacer that you can see next to the disc) you can hold this with a pair of pliars while turning the axle to see if its rusted to the axle or not. If you have access to air I would spray it with penetrating oil and try running the bolt in and out a few times with a impact wrench. The shock might break it free. Ron's alternative seems to be the next step.

Re: Rear wheel removal [Re: Alan Prudhomme] #215203
09/24/08 12:28 pm
09/24/08 12:28 pm
Joined: Aug 2001
Posts: 2,584
Springfield Nebraska
Richrd Online content
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Richrd  Online Content
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Posts: 2,584
Springfield Nebraska
ok, so the axle is unthreading and spreading the hub from the drive. So we know that the hangup is to the left of the stub.

Double check the chain adjuster, (simple, but there is a chance) then smack the left side of swingarm with a hefty rubber mallet to try to break the bond. Forcing stuck part to slide on axle which cannot move.


Rich (member ThreeMustGetBeers)
"It's not always about going fast. Sometimes it's nice to slow down" (Wendy E.2016)

69 bonney
72 commando
75 commando interstate
06 Suzu..Suzu.. uh appliance
couple of beesas a ducati
and the Snake Bike
and a Honda?
Re: Rear wheel removal [Re: Ron Leisner] #216076
09/29/08 10:41 pm
09/29/08 10:41 pm
Joined: Aug 2001
Posts: 2,584
Springfield Nebraska
Richrd Online content
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Richrd  Online Content
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Joined: Aug 2001
Posts: 2,584
Springfield Nebraska
well, did you get it apart yet?


Rich (member ThreeMustGetBeers)
"It's not always about going fast. Sometimes it's nice to slow down" (Wendy E.2016)

69 bonney
72 commando
75 commando interstate
06 Suzu..Suzu.. uh appliance
couple of beesas a ducati
and the Snake Bike
and a Honda?
Re: Rear wheel removal [Re: Richrd] #218322
10/12/08 1:33 pm
10/12/08 1:33 pm
Joined: Sep 2005
Posts: 52
Kentucky
S
smcmanus Offline OP
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smcmanus  Offline OP
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S
Joined: Sep 2005
Posts: 52
Kentucky
I have not messed with it for a while. The hang-up seems to be on the right of the hub. I think Alan is correct. I'm soaking in snake oil and will attack it when time permits.

PS, I was unable to log on for a couple weeks.

Have a nice day
Steve


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