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From: ron@hpfcdc.HP.COM (Ron Miller x3260)
Newsgroups: net.cycle
Subject: Re: New pads = squeaky brakes
Message-ID: <1850001@hpfcdc.HP.COM>
Date: Mon, 20-Oct-86 12:35:22 EDT
Article-I.D.: hpfcdc.1850001
Posted: Mon Oct 20 12:35:22 1986
Date-Received: Fri, 24-Oct-86 07:13:36 EDT
References: <1630@drutx.UUCP>
Organization: HP Ft. Collins, Co.
Lines: 26

Re: brake squeal


I recall reading an article or two about the subject. 

The source of the noise is mechanical oscillation of some sort. The two
usual places for vibration to take place is either the brake pads or
the rotor discs.

One fix is to place some sort of damping material behind the brake
pads (not between pad and rotor) which prevents vibration of the 
pad. This material is usually a very viscous fluid which is compatible
with brake materials. (I thing this is the stuff which one netter tried)

The other thing to try is the rotor itself. One of the production changes
of a popular bike (I don't remember which one) was to add a thin paper
gasket between the brake rotor and the wheel. This effectively changed
the oscillation characteristic of the rotor and killed off the squeal.

There are undoubtedly more fixes out there but these are 2 I've heard of.

Good Luck !

Ron Miller
{ihnp4, hplabs}hpfcla!ron