Squeeky Brakes

Demonic69 · The Pink Rhino Joined: 31 May 2002 Karma :

It's getting really annoying now! They squeek when I slow down, just before stopping, not really at high speeds. Anyone know what can be done? Please don't suggest oil or wd40 or something on the pads/discs, unless you want it applying to your own brakes nex time we meet Very Happy

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Major_Grooves · The Doctor Joined: 10 May 2002 Karma :

Brake cleaning spray - you'll be amazed how much crap you get rid of when you spray that stuff into the brakes.

PsychoHippy · Jammy Git Joined: 02 Jul 2002 Karma :

Have you tried putting some copper grease on the back of the pads - between the pad and the thin metal plate?
And yes, I am being serious - my Bandit breaks squeeled like a stuck pig untill someone suggested doing this. Shocked

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Kris · World Chat Champion Joined: 03 Feb 2002 Karma :

so what causes squeeky brakes then? Is it stuff on the disc itself?

How are the brake pads, have they still got life in them?
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Hex · Party Boy Joined: 04 Feb 2002 Karma :

The squeak is normally caused from the brake pad moving against the piston. Ie when braking the pad actually moves around and rubs agains the piston so squeaks.

This is why the copper grease generally will stop the squeak.
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Jimmy · Borekit Bruiser Joined: 21 Apr 2003 Karma :

You let Nige near your bike on Sunday at the roundabout, that'll be the cause.

Whenever Nige gets near to a car, bike or PC it develops an immediate fault, it's clinically called 'The Halfmoon Effect'.

I'm afraid there is no cure. Watch out for rust developing at an astounding rate, this is another side effect. Very Happy

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MarJay · But it's British! Joined: 15 Sep 2003 Karma :

There's a part that comes on the back of some bikes brake pads called an "anti-squeal plate"its just a pressed steel cover with loads of holes in.

Copper grease on the BACK Very Happy

of the pads does a similar job, although it might be worth taking the caliper off of the mounts, taking out the pads and spraying it all with brake cleaner. Brush it all out with a stiff ish brush and wipe it over with a dry rag.

Put copper grease on the pad pins and round the pistons obviously being careful not to get any on the pads themselves. (or discs) Then re-assemble.

Not only should this stop the squeal but it might make your brakes feel a bit better too.
If the pads are brand new then they might just need bit of bedding in... this might stop the squealing also...
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Demonic69 · The Pink Rhino Joined: 31 May 2002 Karma :

Jimmy · Borekit Bruiser Joined: 21 Apr 2003 Karma :

I wasn't there on Sunday but Nige was telling what you were doing.

I just know from experience what happens when Nige is around anything mechanical or pc related, it breaks!
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Demonic69 · The Pink Rhino Joined: 31 May 2002 Karma :

Jimmy · Borekit Bruiser Joined: 21 Apr 2003 Karma :

Nige has actually ridden M's bike so it probably is his fault in some way.

Yeah I should be there next weekend. Would have gone on Sunday but was at Alton Towers.
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Stew · Posted: 14:24 - 17 Sep 2003 Post subject:

Lol@Jimmy (its james with the red ZXR6 from Elvington btw). Laughing

And yeah Marjay is right about some bikes have anti squeal pads, they are mentioned in the haynes manual for my bike but I have never actually seen one (my pads have plenty of copper grease on the backing plate).
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G · The Voice of Reason Joined: 02 Feb 2002 Karma :

It's definately worth adding a dab of copper grease to the pin while you're at it... It can be just this that causes brakes to rub, because there's a little bit of friction stopping them from sliding back.

Korn · Admin Joined: 01 Feb 2002 Karma :

While we're here - you'll be amazed how much difference regularly cleaning the caliper pistons can make, especially if you ride through crap weather.
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Major_Grooves · The Doctor Joined: 10 May 2002 Karma :

I may be wrong but I thought there was an issue of RIDE which said you should use copper grease on the pins but use rubber grease on the pistons. I couldn't get hold of rubber grease so i just used copper grease so it probably makes no difference.

Stew · Posted: 21:00 - 17 Sep 2003 Post subject:

G · The Voice of Reason Joined: 02 Feb 2002 Karma :

There's a fairly big debate about whether or not this it the case.

This is obviously only in relation to the sides of the pistons.

Many people do/have done it without problems, so I wouldn't worry /too/ much.

Kickstart · The Oracle Joined: 04 Feb 2002 Karma :

Hi

I use copper slip on the backs of the pads. If they still squeak you can try chamfering the leading edge of the pads. I also have used copper grease on the pistons. Rubber grease is probably better, but given the cost of the stuff and the difficulty of buying it I will keep with the copper grease.

All the best

Keith
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