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General Category >> Rubber Side Down! >> '08 Rear wheel bearing wobble?
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Message started by Sam7.62 on 09/14/11 at 08:31:49

Title: '08 Rear wheel bearing wobble?
Post by Sam7.62 on 09/14/11 at 08:31:49

Say that 5x fast..

I have an '08 S40 with 2000miles. Bought it used everything looked tiptop.

Today I was cleaning the belt guard and I tried moving the rear sprocket((still called a sprocket w/a belt?)) and there was some lateral play in it. Maybe 2mm if I had to guess, don't have a run out gauge.

I'm new to motorcycles but I don't think it should move at all. I wasn't able to get the rear wheel it self to move, just the sprocket.
I don't have a MC jack so that may be why. The belt doesn't look out of alignment.

Title: Re: '08 Rear wheel bearing wobble?
Post by verslagen1 on 09/14/11 at 08:45:57

Most m/c rear sprokets have rubber dampers to smooth out the power pulses.
The savage being a single has pretty hefty power pulses that are comparatively widely set apart from multies.

So you will be able to wiggle the sproket a bit.

Title: Re: '08 Rear wheel bearing wobble?
Post by Oldfeller on 09/14/11 at 09:00:39

perfectly normal -- standard -- not to worry

Title: Re: '08 Rear wheel bearing wobble?
Post by Sam7.62 on 09/14/11 at 09:40:25

Cool thanks.

Title: Re: '08 Rear wheel bearing wobble?
Post by Serowbot on 09/14/11 at 10:23:07

..."reareelbearingobble!"... :-?...

Perfectly normal... :-?...

Title: Re: '08 Rear wheel bearing wobble?
Post by Grand Strand on 09/14/11 at 17:47:08

Similar question regarding the rear sprocket. Went for a nice ride on Sunday. 2up with my wife and stopped for an ice cream. When we came out and suiting up I noticed a light metal flake dust on the powder coated inner rim of the sprocket. Is this normal? I am afraid not, but I don’t know. How should it be checked out?

Sorry about hijacking the thread, I just thought it was pretty closely related. Thanks one and all!

Title: Re: '08 Rear wheel bearing wobble?
Post by Sam7.62 on 09/14/11 at 18:04:16

4F4A1D1F1916162E0 wrote:

Sorry about hijacking the thread, I just thought it was pretty closely related. Thanks one and all!

Not a problem. Just furthering the discussion.

Title: Re: '08 Rear wheel bearing wobble?
Post by Serowbot on 09/14/11 at 18:28:44

585D0A080E0101390 wrote:

That's called "shmutz"... it's a dust from stuff rubbing against stuff...
Probably belt shmutz from rubbing on the pulley...
No worries... it'll take a thousand years to get enough shmutz off the belt to weaken it...
... could be some rubber cushion sprocket mount shmutz, too..
... again,.. thousand years...

It's a close relative to the brake shmutz on your front brake caliper...
... (but that one will shmutz itself out in 5 to 7.5k miles)...
:-?...

Note... Jeepers!,... I just wrote all that and then noticed the word "metal" as in flake...
... so,.. check it with a magnet, it may just look like metal... Shmutz can do that...
... if it is metal,... look for what would rub 2 up, that wouldn't 1 up...
I can only think of a fender bolt against the tire, but the tire would loose that fight, and you'd be back to rubber shmutz...

... is your wife missing her earrings or anything?... :-?...
..

Title: Re: '08 Rear wheel bearing wobble?
Post by Grand Strand on 09/14/11 at 19:02:17

That's called "shmutz"... it's a dust from stuff rubbing against stuff...

... is your wife missing her earrings or anything?... :-?...

Thanks Serow, I'll check'er ears atta while! ;D

I like making "shmutz" :)

Title: Re: '08 Rear wheel bearing wobble?
Post by Oldfeller on 09/14/11 at 19:27:50

Second only to our electrics, our drive train is as trouble free as anything you have see on any motorcycle (that does not have an oil bath shaft drive, they do pretty durn good too).

Title: Re: '08 Rear wheel bearing wobble?
Post by serenity3743 on 09/15/11 at 05:20:37

The Savage with side rails and sissy bar has some bolt heads inside the fender that will rub the tire when riding 2-up. Might generate some rubber shmutz and some metal shmutz. I don't know if it's the same set-up on an S40.

Title: Re: '08 Rear wheel bearing wobble?
Post by Jay on 09/17/11 at 00:19:26

The wobble is normal, the shmutz could be from any of the aforementioned sources. I would like to add that I have had the mid-support for the belt guard come loose (it's tac welded), which started the guard rubbing on the rear belt wheel. This produced some shmutz, as well as a really irritating noise.
While we're on the subject, and since the thread has already been semi-hijacked, how bout that belt alignment?
If you do a search of RSD, you'll see a good many entries on the subject. One thing I did not see, and may have missed, was the effect of the rubber dampers in the rear wheel on belt alignment. Is it possible for them to expand and contract with temperature variations?
I have a slight squeek when I first start out. As the bike and belt warm up, the squeek goes away. I've also noticed that, when cold, my belt tends to track ever so slightly to the outside of the wheel at the rear (the source of the squeek); and after it's been ridden a while, and is all toasty warm, the belt is midline to slightly to the inside of the belt wheel (and the squeek is no more). It hasn't bothered me enough to check it much beyond the few times after I finally discovered what was causing the squeek. It's not effecting peerformance that I can tell, nor does it seem to be having any bad effects on the belt. I was just wondering if expansion and contraction of the rubber dampers in the rear wheel would cause that. Sorry for the hijack.