Last resort on squealing brakes
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Road Warrior
Joined: Mar 2008
Posts: 1,783
Likes: 10
From: Oh
Last resort on squealing brakes
Well because it's winter I decided I have to do something about my rear squealing brake. What I have done so far: replaced pads with Lydall pads, used the paste and have even tapered the leading edge slightly ( what HD does for the problem). Have cleaned the rotor and pads repeatedly with brake cleaner. Still have the FRIGGIN SQUEAL!
Last resort go to a floating rotor but, which one? Any ideas?
Last resort go to a floating rotor but, which one? Any ideas?
Stellar HDF Member
Joined: Mar 2007
Posts: 2,034
Likes: 45
From: Michigan
thats interesting.. My 06 squealed like hell in the front. I polished the rotors myself and re mounted then and it was gone. There was a bulletin on the 06 models about swapping the rotors side to side and I really didnt pay attention to what side they came off from on went back on 
.. The squeal is gone though. Also at one time i had a bit od a squeel on the rear and while i was doing all the stuff to mine along with the rotor polishing i scuffed the rear rotor up good with a red scotch brite pad and I have no noise.. Now after telling you this it will prolly do it this summer..
.. The squeal is gone though. Also at one time i had a bit od a squeel on the rear and while i was doing all the stuff to mine along with the rotor polishing i scuffed the rear rotor up good with a red scotch brite pad and I have no noise.. Now after telling you this it will prolly do it this summer..
MODERATOR
Joined: Oct 2007
Posts: 4,108
Likes: 1,964
From: New England
FWIW, I recently changed out the rear pads on my '08 UC and ended up with some squeal (used the goop) and very hot rotor.
After repeated attempts to clean the pads and pistons, still had hot rotor and some squeal.
I made one more attempt at cleaning and found that I had one piston that was sticking. With some rigging, I managed to isolate the sticking piston, cleaned it well, and now all pistons operate freely.
I placed a drop of anti-seize on the non-friction side of both pads where they contact each piston, re-installed everything, and tested.
I no longer have any squeal and the rotor is now only barely warm to the touch shortly after riding.
Cleaning each piston and getting them to move in and out without restriction seems to have solved my problem. That one sticking piston was giving me that much of an issue.
Good luck!
After repeated attempts to clean the pads and pistons, still had hot rotor and some squeal.
I made one more attempt at cleaning and found that I had one piston that was sticking. With some rigging, I managed to isolate the sticking piston, cleaned it well, and now all pistons operate freely.
I placed a drop of anti-seize on the non-friction side of both pads where they contact each piston, re-installed everything, and tested.
I no longer have any squeal and the rotor is now only barely warm to the touch shortly after riding.
Cleaning each piston and getting them to move in and out without restriction seems to have solved my problem. That one sticking piston was giving me that much of an issue.
Good luck!
Seasoned HDF Member
Joined: Mar 2009
Posts: 24,728
Likes: 9,227
From: Snow Hill, NC
I have a squeal but it's in my front...it's from running Double sintered pads i know but the braking power way compensated for the squeal...i will admit mine is not that bad...I will put the same organic pad on the rear again as they do good but i will still go with EBC double sintered on the front...i got 30k miles on the fronts and they still have at least 10k left on them...Good luck Dave...If i was you i would call Lyndall though...they may help you out. I hear they have a good Cust.service rating. Worth a try.
Cruiser
Joined: Apr 2008
Posts: 192
Likes: 5
FWIW - My '02 squealed pretty bad. Was living with it until a front rotor warped. I switched to HD floating rotors and EBC sintered pads; hasn't squealed since.
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Thread Starter
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Road Warrior
Joined: Mar 2008
Posts: 1,783
Likes: 10
From: Oh
FWIW, I recently changed out the rear pads on my '08 UC and ended up with some squeal (used the goop) and very hot rotor.
After repeated attempts to clean the pads and pistons, still had hot rotor and some squeal.
I made one more attempt at cleaning and found that I had one piston that was sticking. With some rigging, I managed to isolate the sticking piston, cleaned it well, and now all pistons operate freely.
I placed a drop of anti-seize on the non-friction side of both pads where they contact each piston, re-installed everything, and tested.
I no longer have any squeal and the rotor is now only barely warm to the touch shortly after riding.
Cleaning each piston and getting them to move in and out without restriction seems to have solved my problem. That one sticking piston was giving me that much of an issue.
Good luck!
After repeated attempts to clean the pads and pistons, still had hot rotor and some squeal.
I made one more attempt at cleaning and found that I had one piston that was sticking. With some rigging, I managed to isolate the sticking piston, cleaned it well, and now all pistons operate freely.
I placed a drop of anti-seize on the non-friction side of both pads where they contact each piston, re-installed everything, and tested.
I no longer have any squeal and the rotor is now only barely warm to the touch shortly after riding.
Cleaning each piston and getting them to move in and out without restriction seems to have solved my problem. That one sticking piston was giving me that much of an issue.
Good luck!
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Thread Starter
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Road Warrior
Joined: Mar 2008
Posts: 1,783
Likes: 10
From: Oh
Are you telling me you take apart your brake pistons, bleed your brakes and clean them at every oil change? I cannot believe that you are doing that. My brakes starting squealing at 2K and have never stopped, even after replacing pads. I now have 16K on the bike.