Topic: Screamin' Brakes

[bozo4onion]

New caliper piston, seal, cleaned and kitted master cylinder and new (Honda) pads. Now the brakes squeak at about 3 different frequencies, the lowest of which vibrates and almost buzzes my hands off the handlebars. Yes I used the "antisqueak goo" and even set the caliper w/a feeler gauge. Tried again with the Clymer method of adjusting till wheel moves freely then 1/4 turn more. Made it worse. Help!

[Johnie]

I adjusted mine the same as you did using my Honda service manual with the same instructions.  Squeeled like the dinkins...so I backed that screw off more and that has seemed to cure it...for now at least.  Give it a try as it seems loose is better.  Good luck with it.

[bozo4onion]

I'll try it. Thanks. Any more Ideas? BTW they did not squeak w/the POs leaky Yammy master w/leaky pitted caliper. No good deed goes unpunished.

[TwoTired]

Is the relief hole in the master clear?
Have you set the stationary pad for  .006 clearance?
Check your spokes for tightness?

Are the pads dragging on the rotor?

[bozo4onion]

Master rebuilt w/relief hole bubbling on bleed. Buzzing squeaking heard only while applying pressure to lever. Initially put a .006 between pad and rotor and loosened adjustment till it fell out. I am currently using the Clymer method of tightening the screw till the rotor drags then loosening till the wheel just turns freely +1/4 turn more. Didn't work either. Rotor is true as it worked fine before rebuild Never thought of spokes but the tech said I'm ok when he mounted/balanced the front tire. I'll ckeck.

[eldar]

Did you try the cut trick? Take your pads and cut a straight grove in them about 1/8 in deep, parallel to the ground.

[bozo4onion]

Ldar, interesting solution. Do I cut w/ hack saw, table saw, (chain saw ). Has anyone else tried this. Hate to $crew up a set of spendy Honda pads.

[gold72]

I cut my pads with a hacksaw, cut two lines parrallel to the ground on the pads and helped a lot with the squealing


good luck

[chrislib]

Cutting a groove will probably work, as will putting a slight chamfer around the perimeter of the pad. Problem is that it only works until the pad wears down to the part that is ungrooved/chamfered. You could simply take it apart every once in a while to re-do (would`nt be a bad idea anyhow to inspect). How your rotor surface finish? If it`s mirror-like and glazed that can contribute to noise as well. Putting a nice crosshatch on the rotor will help as well.

[mattcb350f]

My brakes sounded like a baby being hit with a cat.

They were newish pads with lots of material.... tried everything

Tightened spokes, deglazed pads and rotor twice, tried silicone, brake goo.... nothing worked.

So I pitched them and and put in a half wore out set I had in my spares and presto, NO MORE SQUEAL 

Maybe too much pad is the problem? I've also heard the grove trick works well too.

 Matt.

[bozo4onion]

"baby being hit with a cat"
Yeah I thought mine was sounding like that too till' I noticed this only happened when my neighbor was hitting his baby w/a cat. I'll try the chamfering then the sawing. I guess then I'll put the brake fluid soaked pads back in the pitted pos caliper and reinstall the leaky Yamaha master . Not.