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Discussion Starter · #1 ·
The rear brakes on my 81" Custom squeal a bit. I have plenty of material left on the brake shoes. Anybody have this problem ?
 

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Give the shoes and drum a light sanding and cleaning is what I hear.



I need to do this; my rear brake squeals more than a pig 2 seconds before it becomes bacon...
 

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Mine squealed too...until we took the back wheel off and simply cleaned it....the leading edge of the shoes were already shamfered so all it took was a cleaning.....was lots of dust in there. After cleaning the squeal was gone and they grabbed better too.
 

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Mine squealed too...until we took the back wheel off and simply cleaned it....the leading edge of the shoes were already shamfered so all it took was a cleaning.....was lots of dust in there.  After cleaning the  squeal was gone and they grabbed better too.
What Rick said....mine was squealing 2 years ago so I took the rear off, sanded the shoe and cleaned it and the drum with brake cleaner and back together again, and just this season it's started to squeal a bit again.  Guess I need a saturday to do some brake work again.
 

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My FRONT ones still do this with new pads, but they seem to have broken in since it is not near as bad now.
 

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Discussion Starter · #7 ·
I called myself cleaning the brake drum when I bought a set of wheels second hand. I had to remove the rear wheel today and found I didn't clean it very well. Still a bit of rust. I'll get to that since I have the wheel off.



By the way. The second hand set of wheels I acquired had rubber on them. The front had good tread but was a bit cracked and dry rotted. It got replaced. The rear was fine except that I had to air it up every time I wanted to work on it or test ride it. I broke the tire loose from the rim last summer and gave it a good cleaning while on the bike. Wrong. Didn't work well and still had a slow leak around the rim.



I got the tire off today and found at sometime, somebody had "fix a flat" or something like it in a previous tire. They replaced the tire and didn't clean the rim. There wasn't much on the rim but man was it sticky. I had to use lacquer thinner and a brown pad to get that stuff off. It took over an hour cause it rolls up like chewing gum. I cleaned up the bead of the tire, reinstalled, and now no leaky.



However, now I noticed a big O ring that is in three pieces or so. I can't find the other missing pieces. Anybody know what size that O ring is ? It goes in the groove that is around the splines that connect to the wheel.
 

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That giant o ring is a seal, If you know where it goes you should fit it.

Mine fell apart when i last cleaned up the wheel etc to fix screaming brake so it's not there anymore
but one day I'll order a new one!



oops - just re-read your post! but see my original reply. Better to get one but not critical (for a little while). eventually grease from the drive could travel into the brake drum so dont leave it too long!
 

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Discussion Starter · #10 ·
I found a pack of O-rings at the auto parts store. One of them fit somewhat. Not what I would like but think it will seal OK. At least til I get the proper one.



I lightly sanded the rear brake drum til it was nice and shiney. The squeak is gone.



Thanks guys for the help.
 

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Bumping this so I don't need to make another thread!



About two weeks ago I removed the wheel myself to get a nail pulled, and have the tire patched. The only previous times it had been removed was with the help of my moto-guru uncle. This time, I removed the wheel with the help of my non-skilled moto-illiterate father, and brought it to a tire shop. I'm unsure of how they mounted it, all I know is that they weren't allowed to balance it. I also put it back on myself and with my father. After putting the wheel back on I noticed that my ride was a lot less bumpy, but using the rear brake would elicit a rather loud and annoying squeal. It feels "different" especially in terms of adjustments, but not necessarily "weaker." Just kind of an odd feel. I can use it at higher speeds without hearing it if I push down enough, though low speeds it's unavoidable, and if I'm dragging the rear in a parking lot or something, it's like everyone in the entire parking lot stops to look at the horrid noise!



Seems like it gets better as I ride, but once I let the bike sit for a bit, it'll come right back full force. Especially overnight.



So, I know that the only real way to troubleshoot will be to take the rear wheel off again of course, but before I do that, I'm wondering what the minds of the forums think could have caused it. Obviously I screwed up somewhere, but where? It seems like I did everything that needed to be done, except for adding grease (already was plenty there. And of course I mean only where grease is supposed to go, I didn't grease my shoes lol) and maybe cleaning out the drum, though looking at it it seemed fine. Or maybe I installed something incorrectly, since I didn't have someone with skill overlooking what I was doing.



Thoughts are appreciated.
 

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I have the exact problem as Cramer. Last year I took the wheel off and they put a new tire on it. While it was off I cleaned the brake drum and installed new Pads. It started squeeking right away, but figured it would stop after the pads broke in. Well, this year I just ran it around the block, and it sounds like a pig getting an electric ennima. Once I have ridden a bit it goes away, but when its cold I really makes a racket, so much I use only the front brake until I have ridden a bit. At higher speeds... anything over about 30MPH it is fine ... feels good and works well .... but at low stopping speeds (like at stop lights it starts again.



I would assume its probabaly a matter of cleaning the thing again, only it happened from day one with the new pads. I removed all rust and had a nice shiny drum, which I then cleaned with acetone to remove all traces of dirt and grease. Anyway, until I can get a chance to pop it off and clean it again, maybe some one can point me in the right direction
 

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I can only suggest this,



Note:When tightening the bolts on a rear wheel that has been removed I slack off the bolts/nuts on the drive box,tighten all the rest and then tighten the drive box bolts last.I got this tip off the old SwedishXX CX board for making sure the rear wheel aligns.It has served me well as I've never had any rear end,"Crabbing".
 

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Thanks Shep, going to give that a try. Figure I will pull off the back wheel and clean it again (and see how the pads are doing), then will try your idea :)
 

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Just to add to this thread on rear brake issues.



I also had a squeal, which after a clean and sand went away.



But recently I've been getting a fuzzy/vibration feeling pulsing though my foot when I apply the rear brake.



It only seems to happen on light braking, with hard braking I feel nothing.



It's also quite noisy, I can hear through my helmet and I even wear earplugs.



Any ideas?



Cheers



Curt
 

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Drive box bolts ?? I've taken my rear wheel off a few times, trying to figure which ones you are referring to ?


The ones that secure the drive shaft outer housing to the drive box.I started using this tip around 6 years ago after I had done a rear wheel service and got,"Crabbing" .Since using this tip I've never had any rear wheel problems.I do not know if it helps but as I've had a 100% success rate in rear wheel servicing since I doubt I'll change this method now as it takes very little to do
 

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Drive box bolts?? What, where, how?



So taking the brake pedal shaft out and cleaning and greasing up won't help then.



Curt
 

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