squeakin brakes %#$@*&%$

delirious · Full Member Joined: Jun 05, 2008 Posts: 43

front brakes squeaked a lot, tried the beld sander trick, seemed to work at first, now squeaking even when not being applied...grrrrr. will the rear shoes fit the front? will the rear disc fit the front, damn 650`s have enough ummmm "normal" noises

jimdi · 650Rider Supporter Joined: Oct 27, 2005 Posts: 512

Mine did the same thing - sanding lasts a couple of miles - disk or pad - New pads were the only thing to get rid of it.

delirious · Full Member Joined: Jun 05, 2008 Posts: 43

thnx for the rapid responce, i may just swap rears to the front, the rear dont squeal and i have been grabbin a hanful of brake over a foot full fer years.

yamaman · Posted: July 2, 2008, 5:58 am Post subject: Re: squeakin brakes %#$@*&%$

when I fit new pads, I
1: remove callipers, remove old pads
2: put a piece of wood between the pistons (slightly thiner than 2 badly worn pads and a disk) this prevents pistons popping out
3: pull brake lever to push pistons out beyond there usual limit
4: clean and polish pistons-and calliper
5: spray pistons with silcone spray
6: push pistons back in, gently
7: apply anti seize to contact areas on new pads and pistons (dont get silicne spray or never sieze on any other bits!!!!)
8: put it all back together, check brake fluid, check calliper bolts tight!
9: pump up brake lever

works a treat, good luck

delirious · Full Member Joined: Jun 05, 2008 Posts: 43

update.: seem the beltsander trick actuall worked....BUT...i know now while the squeal came back so suddenly and worse than b4. there is a pad lock/locator screw on the back of the caliper that vibrated out ( wut a shock screews vibrating loose onna xs650) LOL fortunately i have an on box of assorted hardware frm the dozen xs400 i owned back in the day. no caliper screws, but a few correct sized screws. spinning one in a drill with a good file, i pointed the end to match the screw i lost. i belt sanded all 4 pads once again. picked the two thickest pads for the front. only squeal i get now is at very low speed braking WOOOOO HOOOO!!!!

delirious · Full Member Joined: Jun 05, 2008 Posts: 43

grrrrrr if i wasnt bald i`d pull my hair out. brakes squeak alla tyme now, `cept when braking. tried bleeding them. now there seems to be less braking power???? bleeding same technique as a car....right? its gonna drive me crazy, and that my friends izza very short drive!!!!

xsjohn · Posted: July 5, 2008, 8:25 am Post subject: Re: squeakin brakes %#$@*&%$

Need slotted rotors or lots of holes.....brakes will get a "lot" better and the squeeks will be gone.......

XS1100 front on the front
XS850 front on the rear (if you have disc on the back)

.xsjohn

Retiredgentleman · Posted: July 5, 2008, 1:15 pm Post subject: Re: squeakin brakes %#$@*&%$

I had squeaking brakes. Drilled the front and rear rotors and installed new pads..............problem solved and much better braking.

raftercliff · Posted: July 5, 2008, 2:39 pm Post subject: Re: squeakin brakes %#$@*&%$

Did you drill the disc yourself or take it somewhere? I could use a little better performance from my brakes and drilling the rotor seems a good idea.

Retiredgentleman · Posted: July 5, 2008, 3:36 pm Post subject: Re: squeakin brakes %#$@*&%$

I just used my own drill press............use sharp bits and drill smaller pilot holes first.............and use a slow speed on the drill press.

kingwj · Posted: July 5, 2008, 4:27 pm Post subject: Re: squeakin brakes %#$@*&%$

Retiredgentleman wrote:

I just used my own drill press............use sharp bits and drill smaller pilot holes first.............and use a slow speed on the drill press.

Actually use the proper speed(see chart). Center punch the locations, clamp the disc and drill a small pilot hole in each location followed by the larger hole. Lubricate the bit and counterbore when you are done to remove burrs. All it takes is time and maybe a few bits.

raftercliff · Posted: July 6, 2008, 3:43 pm Post subject: Re: squeakin brakes %#$@*&%$

Thank you to you both of you. I will try this out. I was a little concerned with warping the disc but it doesn't sound like that will be an issue if I'm careful and do it right.

jimmer · Posted: July 6, 2008, 3:50 pm Post subject: Re: squeakin brakes %#$@*&%$

I've read many places not to chamfer ... to just clean up. The sharp edge of the holes is what cleans the pads.

kingwj · Posted: July 6, 2008, 5:57 pm Post subject: Re: squeakin brakes %#$@*&%$

No chamfer can stress crack. Sharp edges are bad. I was of the opinion the holes allowed the gas to vent which allows the pads to better contact the disk. But I could be wrong.

Retiredgentleman · Posted: July 6, 2008, 6:51 pm Post subject: Re: squeakin brakes %#$@*&%$

kingwj; Actually the speed I used on my drill press was around 250 to 300 RPM, with cutting oil and works well. The disk does not get warm and will not warp. My understanding is best to leave the sharp edges on the holes to clean the pads.

yamaman · Posted: July 7, 2008, 6:20 am Post subject: Re: squeakin brakes %#$@*&%$

most squeeling occurs from the back of the pad,where it contacts the piston. is worth lubing those contact areas as i said earlier, cheers

delirious · Full Member Joined: Jun 05, 2008 Posts: 43

tyme ta order new pads and a disc, as mine is warped (good match to my personality) i have them now so no squeal when braking but a rythmatic "chirp" in tyme with the warp. drilly soundz kewl, i wish i knew how to use the patern i found here, dont know how i can get the scale set to 100mm. i think it`s xsjohn`s patern. thanx all for the tips, this site rocks.

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