So my rear sprocket carrier is rubbing on the eccentric. Seems to have gotten worse over time. Any one here have any Ideas why.
I will post pics soon.
I will post pics soon.
The last 4 pictures are too blurry to make out. Likely cush drive bolts backing out. Do you see metal shavings on the rims?
Happend on its own. spacers and all other hardware in order. Im starting to read about cush drive faileur and im leaning twards that. any opinions?Did you just take the sprocket assembly off, and after re-install the problem occurred? Or did it just happen on it's own?
Same problem happened to mine after a certain dealership in the Santa Barbara area installed a quick change assembly on my 996. There is a washer that goes in between the eccentric and the sprocket hub/assembly. It spaces out the hub so it doesn't conflict with the eccentric.
It is very easy to forget to install the washer.
To me it doesn't look like the bushings are backing out because it looked like you have sprocket to eccentric contact. But those bushings can back out if not installed correctly.
Good Luck Bro.
positive about washer. Again carrier is conecting with eccentric. I dont see how a hub issue could cause this.Cush drive failure?
Do you mean the bushings that sit inside the inner sprocket and attach to the hub assembly? The second photo shows that the contact is with the inner sprocket and the eccentric. Doesn't appear that the bushings re contacting the eccentric at all.
Maybe your hub is junk. Are you positive that the washer was installed?
Take it apart and you'll see. The bushings have collars on them that are slightly different heights. Which is why you they all appear to have different spacings relative to the carrier.the cush drive are not bottomed out in to the stm carrier. I wonder it this is a problem. Thoughts and Informed opinions please.
eccentric is fine.Maybe we are getting our terms mixed up.
Thats my best idea. Otherwise I'd check the circlip on the carrier assembly, maybe it came unseated. Is there play on the splines? Could there be a problem on the eccentric side, where the washer I'm talking about seats on the the eccentric hub?
Whatever it is, you obviously have a spacing issue.
Just ideas. Looks like you prob pretty pissed by looks of those photos. I know I was.
I see what you are saying.eccentric is fine.
cir clip is fine.
Spacing was fine (this issue developed over time.)
look at the photos of the cush drives. should they be seated further into an stm carrier? Because there is that little lip on the inside of the carrier and the space diference is the same amount that the cush sticks out on the front.
Here are some more photos. I made some changes so that I don't look so pissed off.