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Old 12 Aug 2003, 02:45 am
Don in Castro Valley, CA
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Default Re: Groove Found on Brake Disc

"Steve Lee" <dont@thinkso.com> wrote in message
news:83qgjvgucpg4viece0tnk90ghraa26ci0k@4ax.com...
<SNIP>

> I'm taking my Pilot in for one of its scheduled service next Monday
> and I plan to show the groove to the service advisor and see what he
> says. Just in case he writes it off as being nothing to worry about,
> despite the brake squealing, what are some of the points concern I can
> present to him to get him to have a technician inspect the brakes
> thoroughly? I mean, a groove forming on a brake disc isn't normal, is
> it? Thanks for your time and input.


Make sure that they remove the pads on (at least) that caliper and check for
contamination (i.e. a rock). If you can just barely see and feel the
groove, it may not be anything to worry about. If it is a little deeper,
the rotors can be "turned" (metal shaved off) to make them flat again. If
the rotors are turned, replace the pads. If there is something embedded in
the pads, replace the pads. If the pads are no longer flat or an even depth
all the way across their surface, replace the pads.

Pads are MUCH cheaper than rotors. If there is any doubt as to if the
rotors should be turned (e.g. the dealer gives you the option) don't turn
them.

Don


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Old 12 Aug 2003, 10:27 am
Jim Yanik
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Default Re: Groove Found on Brake Disc

"Don in Castro Valley, CA" <rz500n@comcast.net> wrote in
news:420_a.125895$YN5.86224@sccrnsc01:

> "Steve Lee" <dont@thinkso.com> wrote in message
> news:83qgjvgucpg4viece0tnk90ghraa26ci0k@4ax.com...
><SNIP>
>
>> I'm taking my Pilot in for one of its scheduled service next Monday
>> and I plan to show the groove to the service advisor and see what he
>> says. Just in case he writes it off as being nothing to worry about,
>> despite the brake squealing, what are some of the points concern I
>> can present to him to get him to have a technician inspect the brakes
>> thoroughly? I mean, a groove forming on a brake disc isn't normal, is
>> it? Thanks for your time and input.

>
> Make sure that they remove the pads on (at least) that caliper and
> check for contamination (i.e. a rock). If you can just barely see and
> feel the groove, it may not be anything to worry about. If it is a
> little deeper, the rotors can be "turned" (metal shaved off) to make
> them flat again. If the rotors are turned, replace the pads. If
> there is something embedded in the pads, replace the pads. If the
> pads are no longer flat or an even depth all the way across their
> surface, replace the pads.
>
> Pads are MUCH cheaper than rotors. If there is any doubt as to if the
> rotors should be turned (e.g. the dealer gives you the option) don't
> turn them.
>
> Don
>
>
>


I've never had a dealer give me the option of turning the rotors.It's part
of their brake job.Perhaps they would not warranty their work if you have
them do it differently than their standard way.
(plus they want to sell rotors)

If the grooves are too deep,you will need new rotors.There's only so much
that can be removed from a rotor.Once down to a specified thickness,the
rotor must be replaced.

--
Jim Yanik,NRA member
remove null to contact me
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