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ViragoTechForum.com XV920 Rear tire rubbing against shaft housing (SOLVED)

#1:  Rear tire rubbing against shaft housing (SOLVED) Author: av8r115 Post Posted: Fri Apr 30, 2010 4:28 pm

Hey gang,

I've noticed the rear tire on my xv920 is rubbing slightly against the drive shaft housing. From having the rear wheel off a while back I know that all the parts are there. Would a worn bearing cause this?

Any suggestions are appreciated!!

Thanks.

#2:   Author: pofarm Post Posted: Fri Apr 30, 2010 4:44 pm

What size tire are you running? 130/90/16 is the stock size. Some have been able to use a 140/90/16, depending on the tire brand. I have a Maxxis in 130 and it just barely clears.

#3:  Re: Rear tire rubbing against shaft housing Author: bikermike Post Posted: Sat May 01, 2010 1:09 am

Did you put the spacers back in the right location? May a spacer is not in right? confused

#4:   Author: grazingazer Post Posted: Sat May 01, 2010 7:43 am

is your tire fully inflated...yes a worn bearing can cause a tire to rub

#5:  Re: Rear tire rubbing against shaft housing Author: av8r115 Post Posted: Sat May 01, 2010 12:56 pm

The tire is an AVON 130/90-16 that was installed June of '08. The rubbing showed up September '09

All the parts are in the right place. I double checked this when I had the wheel off to paint the exhaust pipes.

The tire does have a slow leak which I check every couple of days. When it gets down to 35psi I fill it to 40psi.

So how do I check for a bad bearing? Clymer doesn't cover that. I couldn't see any visible movement just pushing sideways on the back of the tire, but if there were a lot of movement I assume I'd feel it when riding. I do feel a vibration that sets in around 65-70mph.

Thanks Everyone!!

#6:   Author: grazingazer Post Posted: Sat May 01, 2010 2:06 pm

put the bike on the centerstand and try to move the wheel from side to side and in and out...if it wiggles you have a bad bearing

#7:   Author: Jake Post Posted: Sat May 01, 2010 11:21 pm

While you have the bike on the center stand checking the bearings, give the tire a couple of spins and check for bulges on the side of the tire.

#8:  Re: Rear tire rubbing against shaft housing Author: av8r115 Post Posted: Sun May 02, 2010 2:20 pm

The alignment of the wheel shouldn't move at all, right?

#9:   Author: Jake Post Posted: Sun May 02, 2010 2:23 pm

It should not.

#10:  Re: Rear tire rubbing against shaft housing Author: av8r115 Post Posted: Mon May 03, 2010 12:53 pm

Ok, I can't get the wheel to budge in any direction. The tire turns freely, but a red shop rag between the shaft housing and tire is enough to keep it from turning. With clearance that tight I bet it rubs once the tire heats up and expands.

The more I think about it the tire may have been rubbing ever since I had it installed. I can't claim to be the most fastidious person on keeping the bike spotless, plus the saddlebags cover most of the tire. error I noticed the rubbing when I had the wheel off last September to paint the exhaust pipes. I did check all the loose parts, but I didn't take the clutch hub off and exam all the internal parts.

What could I safely use as a spacer on the left end of the axle to move the wheel to the right? It only needs to be an 1/8 of an inch. Any reason I couldn't use a big washer?

#11:   Author: pofarm Post Posted: Mon May 03, 2010 5:43 pm

You can't move the wheel to the right. The final drive is bolted solidly to the swing arm. There isn't any side to side adjustment.

#12:  Re: Rear tire rubbing against shaft housing Author: kman Post Posted: Wed May 05, 2010 7:28 am

Some tires are sized a bit off i am running a Shinko stock size rear tire and its real close to rubbing unlike the stock dunlop which had atleast a 1/4" space.
KMAN

#13:  Re: Rear tire rubbing against shaft housing Author: exit27 Post Posted: Wed May 05, 2010 10:39 am

I finally got a chance to look at my '82 750. I have a 130/90-16 Avon Venom X on the rear and have about 1/4 inch of clearance to the shaft housing with the bike on the center stand. I believe it was installed in 2008.

#14:   Author: qbs Post Posted: Thu May 06, 2010 12:05 am

I had the same problem on my 82 750, put a new kenda (cheap) 130/90-16 on last summer before my trip to Cape Breton, first long ride with a passenger this year and it was rubbing hard. I checked the bearings and spacers and everything was OK, think the cheap tire has changed it shape a bit. I used the washer that was under the nut as it was the right thickness and diameter I needed and put it as a spacer between the finaldrive and the wheel hub, a larger ouside diameter washer would interfere with the bearing or drive spline.
I check the spline with grease and it was still engaging the full depth minus 1/16" shouldn't be a problem as the spline is about 2" deep. This centered the wheel perfectly. I replaced the outside washer with a stock washer I had on my bench

#15:   Author: qbs Post Posted: Thu May 06, 2010 12:10 am

Forgot to mention, to get the spacer in place you have to put a long bolt about the same size as the shaft in through from the finaldrive side to hold the spacer in place till you put the wheel in place and push the shaft through, pushing out the bolt.

#16:   Author: Matthew Post Posted: Thu May 06, 2010 12:39 am

Could fix it like a guy with spark plug acces problem after installing headers, piece of pipe and BFH.

notch the tube, flip notch n weld back in, run tubless. [that tube is just a safety cover for the axle, it don't hold oil.]

Though with factory sized tire there is much if any room either.

#17:  Re: Rear tire rubbing against shaft housing Author: av8r115 Post Posted: Sat Jun 19, 2010 11:30 am

I inserted a 1/8" thick washer between the final drive and the wheel hub, and that seems to have done the trick. Been about 2 weeks now and no signs of rubbing. I didn't check the engagement of the hub splines w/ washer, but I know they were fully engaged before so I should lose only 1/8". I used the handle end of a 5/8 punch to keep the washer aligned till the axle came through.

Thanks for all the help everyone!!

Matt
ViragoTechForum.com XV920 Rear tire rubbing against shaft housing (SOLVED)


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