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PCCB gt3 rotors hairline cracks. Normal?

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Old 08-22-2018, 09:22 PM
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997c2sla
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Default PCCB gt3 rotors hairline cracks. Normal?

hi,

i am still annoyed by the squeaking I experience with PCCB.
took it to dealership and they said everything is normal.
i was looking at the rotors and all 4 show hairline cracks.
is this normal?
gt3 has 7300 miles.

thanks,

toni
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Old 08-22-2018, 09:26 PM
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Mech33
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Normal.
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Old 08-22-2018, 09:28 PM
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0to60
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No worries. Deep scoring is a concern on PCCB. Small rocks in between pads and rotors are a problem.
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Old 08-22-2018, 09:28 PM
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soulsea
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Originally Posted by Mech33
Normal.
x 2
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Old 08-22-2018, 09:28 PM
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997c2sla
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Thanks.
the squeaking is driving me nuts though.
By the way totally unrelated yesterday I was next to my colleague California.
nice car.
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Old 08-23-2018, 10:48 AM
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Perimeter
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Be proud your PCCBs announce your arrival!

Her California is very cute.
Originally Posted by 997c2sla
Thanks.
the squeaking is driving me nuts though.
By the way totally unrelated yesterday I was next to my colleague California.
nice car.

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Old 08-23-2018, 06:33 PM
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kyrocks
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Originally Posted by Perimeter

Her California is very cute.
LOL!

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Old 08-23-2018, 06:57 PM
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thebishman
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Originally Posted by 997c2sla
Thanks.
the squeaking is driving me nuts though.
By the way totally unrelated yesterday I was next to my colleague California.
nice car.
Have you burnished the PCCBs? If not I’d suggest trying it as when I did a formal ‘burnish’, I had no squeaking with my CCMs in my ‘15 Z06/7 and my current ‘18 AMG GT R. Doing this also makes it much easier to modulate the brakes at low speeds, meaning less ‘grabby’ when slowing down to a complete stop.
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Old 08-23-2018, 08:18 PM
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997c2sla
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I did not and I would not know what is the best way to burnish them.
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Old 08-24-2018, 12:18 AM
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Alan C.
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Picked up my car up at Perimeter Porsche and bedded the brakes the next day at AMPs. No squeaking.
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Old 05-21-2020, 08:03 PM
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pfbz
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I'm just going to tack on this thread instead of starting a new one... Mine look similar but a bit more micro cracking...

Car was just certified and sold as Porsche CPO.

Normal or an issue?





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Old 05-21-2020, 08:32 PM
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Perimeter
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Lovely ceramic microlines,
like a vase from the Song Dynasty!
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Old 05-21-2020, 08:55 PM
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Originally Posted by Perimeter
Lovely ceramic microlines,
like a vase from the Song Dynasty!
So ok?
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Old 05-21-2020, 08:59 PM
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hashash
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Originally Posted by pfbz
So ok?
yes
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Old 05-21-2020, 09:01 PM
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Originally Posted by pfbz
So ok?
This is not normal, it appears as though this car has yet to be tracked.

Kidding... it is how they come.
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