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Display Mesage #104012


front brakes are a real drag
Written by goldwingman40 on 6/2/2011 at 04:21 am

Doug,
I went up to the shop tonight, after the 98 degrees went down to 83 and jacked
up my bike and spun the front wheel. It prodeces a dragging noise and spins
about like yours. It has been no problem for the last 2000 to 3000 miles since I
changed my tires and for the previous 40,000 miles or so.
Fred



--- In ipcrc@yahoogroups.com, "douglasvanb" <douglas.vanbossuyt@...> wrote:
>
> Fred,
>
> I will give riding it a shot tonight after work to see how hot htat rotor
gets. Let's see if I can give my hand a rotor brand :-)
>
> This morning I had a couple minutes to spare and was able to take a video of
the front wheel spinning with both brakes installed. Didn't have time to
uninstall the brake that is still dragging. The video is here:
>
> http://www.douglasvanbossuyt.com/2011/06/01/dragging-front-brake/
>
> What do y'all think? is that a normal time for the wheel to stop rotating
when the bike is cold and has been sitting overnight?
>
> Cheers,
>
> Douglas
>
> --- In ipcrc@yahoogroups.com, "goldwingman40" <goldwingman@> wrote:
> >
> > Doug,
> > Go out and ride the bike a ways only trying the front brake lightly once or
twice and then ride a little trying to use only the rear brake if possable and
then stop and check disc temperature. If there is a problem the disc would be
very hot. I don't think you will find a problem.
> > Fred
> >
> >
> >
> >
> >
> > --- In ipcrc@yahoogroups.com, "douglasvanb" <douglas.vanbossuyt@> wrote:
> > >
> > > Fred,
> > >
> > > The left brake is now just a noise. The right brake will allow the wheel
to rotate two or three revolutions before stopping when I give it a very hard
spin. Without the right brake on, the wheel keeps freely spinning for several
minutes now that I hit the left brake calipers with the cleaner. It is more
than just making a noise on the right side though. I worry about warping the
rotor on the right side if it is dragging too much and heats up excessively.
Tomorrow I'll get back in there and try to clean it again to see if that frees
it up any further.
> > >
> > > Cheers,
> > >
> > > Douglas
> > >
> > > --- In ipcrc@yahoogroups.com, "goldwingman40" <goldwingman@> wrote:
> > > >
> > > > Doug,
> > > > When you say "the brakes are draging" is it hard to turn the wheel or is
it just a dragging noise? You are always going to get noise, they run at zero
clearance and the slight runout of the disc when riding bump them back as you
ride so unless there is a definate drag you don't have a problem. Go out and try
riding it not just spinning the wheel by hand and listening to a noise.
> > > > Fred
> > > >
> > > >
> > > >
> > > >
> > > >
> > > >
> > > > --- In ipcrc@yahoogroups.com, "douglasvanb" <douglas.vanbossuyt@> wrote:
> > > > >
> > > > > Hi Seth and Fred,
> > > > >
> > > > > I disassembled the wheel and cleaned out the slides and the pistons.
They weren't bad at all but could have been hanging up a tiny little bit before
I cleaned them. I also cleaned the guides that the pads slide along. I did NOT
take out the pads. Ran out of time before I had to get back to work. It
greatly improved and eliminated the dragging... right up until I applied the
brakes. Then it was the same problem all over again.
> > > > >
> > > > > The calipers float freely on the slides. No problem there.
> > > > >
> > > > > The pads appear to be wearing evenly between pad sets and between the
two different calipers. The pads simply seem to not be pulling away far enough
from the rotors -- especially on the right caliper. Would it be useful to
completely remove the pads, make everything squeaky clean, and re-install them?
> > > > >
> > > > > Cheers,
> > > > >
> > > > > Douglas
> > > > >
> > > > > --- In ipcrc@yahoogroups.com, "unlikelyloginname" <unlikelyloginname@>
wrote:
> > > > > >
> > > > > > --- In ipcrc@yahoogroups.com, "goldwingman40" <goldwingman@> wrote:
> > > > > > > Seth,
> > > > > > > Or the inside pad wears out faster because it is sticking on the
pins and it doesn't float back and drags. The hydraulic force is enough to pull
it in but it will not float back to releave the pressure of the pad against the
disc so it drags and wears the pad faster.
> > > > > > > Fred
> > > > > >
> > > > > > Fred,
> > > > > >
> > > > > > 'oldWing had calipers so badly frozen on the slides that only the
piston side pad could move. After replacing the pads I couldn't remount the
front wheel because the discs didn't align with the gaps between the pads.
That's when I realized that the calipers needed to move.
> > > > > >
> > > > > > Long ago,
> > > > > > Seth
> > > > > >
> > > > >
> > > >
> > >
> >
>

Message Thread for message #104012