Re: 2006 300 Front Brake Squeak

Ron Seiden wrote:
> <Nick@[EMAIL PROTECTED]
> wrote in message 
> news:vt8504hp9mp14q6s73hobm5mnhe57gl3sv@[EMAIL PROTECTED]
>> Hello,
>>
>>     My friend has a 2006 300 with 26k miles. He has developed a
>> squeaking noise when the front brakes are applied. I was going to
>> apply some brake quiet to the back of the ****ms but found out that
>> they are riveted to the pads.
>>
>> I think from what I remember the noise began when we had to replace
>> the front rotors as they were warped. Could it be the brake material
>> is reacting with the rotors causing this issue? He does a lot of heavy
>> braking so if he needs to get higher quality rotors, what should he
>> get?
>>
> In the old days (when you found disc brakes almost only on foreign
s****ts 
> cars) there was a lot more brake squeal. (We never did cure it on my 
> friend's Fiat 124.) The back yard fix was to lightly sand the surface of
the 
> pads, just enough to remove any glazing they might have acquired. Then
the 
> leading edge of each pad was sanded to slightly bevel it, just enough to

> remove the sharp corner. It usually worked, at least for a while, and
the 
> best part was that the fix was free. 

I know the pads for the LH cars have the trailing and leading edges 
totally chamfered (perhaps a lot of other cars too) - something on the 
order of, oh, 25 or 30° from parallel to the friction surface - maybe 
for that reason?  Perhaps it helps shed water?  Coincidentally that also 
has the effect of increasing friction surface area as the pad wears - 
maybe by 30% or more at end of life.

Bill Putney
(To reply by e-mail, replace the last letter of the alphabet in my 
address with the letter 'x')