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Main Area => General GS500 Discussion => Topic started by: indywar360 on November 06, 2006, 10:11:25 PM

Title: front rotor friction. Why.
Post by: indywar360 on November 06, 2006, 10:11:25 PM
Replaced front axle bolt today and the damn rotor still rubs on the brake caliper. Original axle was pitted and marred on one side, the bearing on that side was leaking oil, and both bearings were not flush in the wheel. Looking thru the axle hole they both stuck over the edge a bit (.6-.9mm).

I am thinking maybe the rotor is warped too but it's not obvious, some guy pointed out it was warped to me, at that moment it was plainly crooked to my eye when gauged against the wheel, however after looking at it again later I couldn't see it.

Originally (before axle replacement) it seemed the rotor friction was intermittent at a certain point in the wheel's rotation. By deductive reasoning now this seems to mean the rotor was/is warped, though at the time I thought it was the axle or the forks being off.

Whatcha think.

If it's not the rotor being warped then Im just going to go ahead with fork replacement and new bearings. Anyone know where to get a good bearing removal tool?

Title: Re: front rotor friction. Why.
Post by: scratch on November 06, 2006, 10:51:18 PM
I thought mine was warped, but after a year of normal useage and a new pair of brake pads, I think that the carrier buttons were just kinda rusty and didn't move freely (semi-floating brake disks).

It's perfectly normal for a disk to rub lightly, at some point.
Title: Re: front rotor friction. Why.
Post by: makenzie71 on November 06, 2006, 11:11:07 PM
Spray the buttons with some WD40, wait 10 minutes, then hit the rotor a few times with a rubber mallet.  My TL has a particularly problematic button and I have to break it loose like this periodically.
Title: Re: front rotor friction. Why.
Post by: indywar360 on November 07, 2006, 04:52:18 PM
I swear it looked bent and then later it was straight again. So the rotor moving would explain it maybe. I am just going to leave it until I get the new forks on (Jared send that package mang!)

:dunno_white:
Title: Re: front rotor friction. Why.
Post by: pbureau69 on November 08, 2006, 09:36:23 AM
Quite a few bikes do this, heck even my scooter does this from time to time... seems a common non-threatening issue-yet annoying at times to listen to ....

Title: Re: front rotor friction. Why.
Post by: natedawg120 on November 08, 2006, 01:15:59 PM
Quote from: makenzie71 on November 06, 2006, 11:11:07 PM
Spray the buttons with some WD40, wait 10 minutes, then hit the rotor a few times with a rubber mallet.  My TL has a particularly problematic button and I have to break it loose like this periodically.

You can do this but make sure not to get any one the rotor and if you do clean it off with some brake cleaner.  Oily brakes aren't good for stopping.