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Drum Brake Noise
- nickleo373
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21 May 2015 18:01 #673059
by nickleo373
1981 KZ550C LTD
"If you ain't first, you're last"
Drum Brake Noise was created by nickleo373
Hey everyone
I just replaced my rear drum brake shoes on my 81 KZ550 with new EBC shoes. The brake works as it should but when it gets warm after a few minutes of riding, there is a loud chirping noise when the brake is applied. With a normal disc brake setup I would assume something needs to be lubed to get rid of the noise but drum brakes are new to me. Is there supposed to be lube anywhere on the new shoes or is the noise just part of the shoes breaking in?
Thanks
I just replaced my rear drum brake shoes on my 81 KZ550 with new EBC shoes. The brake works as it should but when it gets warm after a few minutes of riding, there is a loud chirping noise when the brake is applied. With a normal disc brake setup I would assume something needs to be lubed to get rid of the noise but drum brakes are new to me. Is there supposed to be lube anywhere on the new shoes or is the noise just part of the shoes breaking in?
Thanks
1981 KZ550C LTD
"If you ain't first, you're last"
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- floivanus
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22 May 2015 01:40 #673103
by floivanus
my bikes; 80kz1000(project), 77 gl1000, 74 h2 (project)
Past; 78 kz1000, 83 kz550
Andrew
Replied by floivanus on topic Drum Brake Noise
No lube should be used on the friction surfaces of brakes (pads/shoes) was there a lip of corrosion or anything on the drum when you took it apart? Surfaces all look straight and clean?
How did you adjust the brake pedal? Noise isnt really normal with brakes SOME is, but excessive brake noise isn't normal
How did you adjust the brake pedal? Noise isnt really normal with brakes SOME is, but excessive brake noise isn't normal
my bikes; 80kz1000(project), 77 gl1000, 74 h2 (project)
Past; 78 kz1000, 83 kz550
Andrew
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- 531blackbanshee
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22 May 2015 06:02 #673118
by 531blackbanshee
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!
billybiltit.blogspot.com/
www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work
kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
Replied by 531blackbanshee on topic Drum Brake Noise
shouldn't be hearing a chirping.
a nice smooth lite swoosh dragging noise on setup.
and,
shouldn't really be getting a noise when riding and stopping.
leon
a nice smooth lite swoosh dragging noise on setup.
and,
shouldn't really be getting a noise when riding and stopping.
leon
skiatook,oklahoma 1980 z1r,1978 kz 1000 z1r x 3,
1976 kz 900 x 3
i make what i can,and save the rest!
billybiltit.blogspot.com/
www.kzrider.com/forum/5-chassis/325862-triple-tree-custom-work
kzrider.com/forum/5-chassis/294594-frame-bracing?limitstart=0
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- martin_csr
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22 May 2015 08:09 #673135
by martin_csr
Replied by martin_csr on topic Drum Brake Noise
This may not be the problem, but it has been reported here on KZR that some EBC brake shoes don't fit right --- I think they're too big or something. If possible, I would remove them & compare them to the old shoes. If they appear the same visually, I would try sanding the leading edges of them & also sand the glaze off the drum (ASBESTOS WARNING: DO NOT BREATHE THE DUST). If that doesn't work, then I'd get oem or Vesrah brake shoes. I think the Vesrah part number is VB-412
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- SWest
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22 May 2015 08:20 #673137
by SWest
Replied by SWest on topic Drum Brake Noise
The Z1's were notorious for the brake squeak. That was normal. In your case I think the drum may be glazed. I'd try spinning the wheel while holding some 150 grit paper on a sanding block to clean off the glaze. Look for oil staining too. If they're cintered (high metal content) brake shoes they will wear away the drum faster and could make noise.
Steve
Steve
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- KZB2 650
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22 May 2015 11:44 - 22 May 2015 11:45 #673168
by KZB2 650
1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.
Replied by KZB2 650 on topic Drum Brake Noise
My rear drum has always squeaked when stopping using the stock pads ..... so much I've gotten into a bad habit and don't hardly ever use it.
Had it off quite a few times in the last 35 years and after sanding it and the drum a little it stops for about 8-10 stops but always glazes up and returns. I even tried lightly drilling it to "maybe" throw off harmonics (vibrating) but it didn't help either.
New Ferodo pads on my front disc squeaked so bad I put the stockers back on (which are dead quiet) and plan on replacing them with the stock pads off my parts bike which are is really gd shape when I rebuild the caliber and change the fluid maybe this summer. Read that's a common problem too.
Had it off quite a few times in the last 35 years and after sanding it and the drum a little it stops for about 8-10 stops but always glazes up and returns. I even tried lightly drilling it to "maybe" throw off harmonics (vibrating) but it didn't help either.
New Ferodo pads on my front disc squeaked so bad I put the stockers back on (which are dead quiet) and plan on replacing them with the stock pads off my parts bike which are is really gd shape when I rebuild the caliber and change the fluid maybe this summer. Read that's a common problem too.
1978 KZ650 b-2
700cc Wiseco kit 10 to 1.
1980 KZ750 cam, ape springs, stock clutch/ Barnett springs.
Vance and Hines Header w/ comp baffle and Ape pods, Dyna S and green coils, copper wires.
29MM smooth bores W/ 17.5 pilots, 0-6s and 117.5 main
16/42 gearing X ring chain and alum rear JT sprocket.
Last edit: 22 May 2015 11:45 by KZB2 650.
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