99 OBW Brake squeal

rd wrote:

> Hi,
> I've recently replaced all the pads on my 99 OBW. I made sure to
> apply plenty of anti-squeal grease to the non-disk surfaces. I have
> also made sure the pads have plenty of float when in position in the
> calipers, so they don't stick anywhere.
> The problem I have is that the anti-squeal stuff works for a few
> hundred miles, but then the brakes squeal again while driving (no
> brakes applied). The noise will go away for a short while if I tap the
> brake pedal. It's not there all the time, either. It comes and goes as
> I drive. It seems to be coming more from the RR than anywhere else.
> I've also tried the adhesive stuff, but that's even worse.
> Any help would be appreciated.
>
>
You could have a pebbel stuck behind the back plate or maybe the
caliper slides are rusty/need lube.

Carl


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 >> Stay informed about: 99 OBW Brake squeal 

I used NAPA pads. I don't see how the brand of pad could make any
difference since my problem occurs without the brakes being applied.
It's sounds like the wear sensor is dragging, but I don't see any
signs of uneven wear or scratching of the disk. The wear sensor is
definitely below the level of the pad, so I doubt that can be the
cause.
Again, the noise occurs when there is no pressure on the pads, while
moving. When I depress the brake pedal, even slightly, the noise stops
for a while, then comes back.


On Mon, 19 Jun 2006 19:55:23 GMT, "Bill Pelka"
<wjpelka.TakeThisOut@worldnet.att.net> wrote:

>Were theses new pads OEM? The Mech at the Subaru Dealership said the OEM
>pads are the best at being quiet. He knew that I was going to buy on the web
>and do it myself, so he had nothing to gain, by lying to me...
>
> Bill
>
>"rd" <none.TakeThisOut@none.com> wrote in message
>news:sand92hi744s6n1238e1gbvvp24ctocp32@4ax.com...
>> Hi,
>> I've recently replaced all the pads on my 99 OBW. I made sure to
>> apply plenty of anti-squeal grease to the non-disk surfaces. I have
>> also made sure the pads have plenty of float when in position in the
>> calipers, so they don't stick anywhere.
>> The problem I have is that the anti-squeal stuff works for a few
>> hundred miles, but then the brakes squeal again while driving (no
>> brakes applied). The noise will go away for a short while if I tap the
>> brake pedal. It's not there all the time, either. It comes and goes as
>> I drive. It seems to be coming more from the RR than anywhere else.
>> I've also tried the adhesive stuff, but that's even worse.
>> Any help would be appreciated.
>>
>>
>
 >> Stay informed about: 99 OBW Brake squeal 

"rd" <none DeleteThis @none.com> wrote in message
news:76tf92pv6v87c24r01s0up5hh9t25pf8gi@4ax.com...
>
> I used NAPA pads. I don't see how the brand of pad could make any
> difference since my problem occurs without the brakes being applied.
> It's sounds like the wear sensor is dragging, but I don't see any
> signs of uneven wear or scratching of the disk. The wear sensor is
> definitely below the level of the pad, so I doubt that can be the
> cause.
> Again, the noise occurs when there is no pressure on the pads, while
> moving. When I depress the brake pedal, even slightly, the noise stops
> for a while, then comes back.
>
The pads are skimming the surface of the disk - normal for disk brakes. The
squeal is also more or less normal, but undesirable (duh!). That it
disappears when you touch the brakes lightly is a strong indication that the
brake pads are indeed the problem.

I agree that the pad material is the prime suspect. That said, you have
entered the Twilight Zone known as brake squeal. A lot of factors figure
into whether your disk brakes squeal or not, and getting it to stop is often
an adventure. Short of replacing the pads with OEM, I have had most success
with roughing up the pad surface. A light treatment with sandpaper is good,
but the best thing I've found is beveling the edges of the friction material
with a file. Obviously that is a temporary fix and the squeal will come back
as the material wears, but a few months of blessed quiet is worth it to me

 >> Stay informed about: 99 OBW Brake squeal 

rd wrote:

> I used NAPA pads. I don't see how the brand of pad could make any
> difference since my problem occurs without the brakes being applied.
> It's sounds like the wear sensor is dragging, but I don't see any
> signs of uneven wear or scratching of the disk. The wear sensor is
> definitely below the level of the pad, so I doubt that can be the

That's your problem.

I tried a set of NAPA pads in the rear
and they squeaked. I replaced them with
genuine Subaru pads a couple of weeks ago
and the problem is gone.

As far as I can tell, the NAPA pads are
too hard. They seriously glazed the rotor,
requiring a lot of sandpaper to break the
glaze.

Stick with genuine Subaru pads.
 >> Stay informed about: 99 OBW Brake squeal 

Hi,
Thanks for this info. I have never had a problem with Napa pads in
the past, but I guess this cars rotors are different.
I will try the suggestion of sanding down the edges of the pads and
the rotor to see if that makes a difference.

On Wed, 21 Jun 2006 09:56:06 -0700, Jim Stewart <jstewart RemoveThis @jkmicro.com>
wrote:

>rd wrote:
>
>> I used NAPA pads. I don't see how the brand of pad could make any
>> difference since my problem occurs without the brakes being applied.
>> It's sounds like the wear sensor is dragging, but I don't see any
>> signs of uneven wear or scratching of the disk. The wear sensor is
>> definitely below the level of the pad, so I doubt that can be the
>
>That's your problem.
>
>I tried a set of NAPA pads in the rear
>and they squeaked. I replaced them with
>genuine Subaru pads a couple of weeks ago
>and the problem is gone.
>
>As far as I can tell, the NAPA pads are
>too hard. They seriously glazed the rotor,
>requiring a lot of sandpaper to break the
>glaze.
>
>Stick with genuine Subaru pads.
 >> Stay informed about: 99 OBW Brake squeal 

rd wrote:
> Hi,
> Thanks for this info. I have never had a problem with Napa pads in
> the past, but I guess this cars rotors are different.
> I will try the suggestion of sanding down the edges of the pads and
> the rotor to see if that makes a difference.
>
> On Wed, 21 Jun 2006 09:56:06 -0700, Jim Stewart <jstewart.RemoveThis@jkmicro.com>
> wrote:
>
>
>>rd wrote:
>>
>>
>>>I used NAPA pads. I don't see how the brand of pad could make any
>>>difference since my problem occurs without the brakes being applied.
>>>It's sounds like the wear sensor is dragging, but I don't see any
>>>signs of uneven wear or scratching of the disk. The wear sensor is
>>>definitely below the level of the pad, so I doubt that can be the
>>
>>That's your problem.
>>
>>I tried a set of NAPA pads in the rear
>>and they squeaked. I replaced them with
>>genuine Subaru pads a couple of weeks ago
>>and the problem is gone.
>>
>>As far as I can tell, the NAPA pads are
>>too hard. They seriously glazed the rotor,
>>requiring a lot of sandpaper to break the
>>glaze.
>>
>>Stick with genuine Subaru pads.
>
>

I have no experience with NAPA pads, but at www.stoptech.com there are
some technical white papers worth reading about pad 'bedding in' and
rotor 'warpage'.

just fyi


Carl


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