Brakes squeal like a P!G
04-28-2012, 01:36 PM
#17
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I am no expert but there is almost certainly something stuck between your brake pad and rotor to cause that kind of score. I don't think you have much of a choice. Remove the brake pads and look at them. The crack is bad so I would replace them anyway. You may be able to get your rotors resurfaced but it may be too late. I would look online for replacement pads and rotors. I replaced mine with powerslot rotors and EBC pads and they are great. Way quieter and less dusty than oem and even though I get the occasional squeal a good hose off every three days keep the noise in check which was not the case with oem. Good luck
04-28-2012, 10:21 PM
#18
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I'm going to take it in for an inspection next week, hopefully I can just resurface that rotor and remove whatever debris is causing it. I talked with my brother, who is a tech but lives 4 hours away, and he said it looks like somehow something is stuck between or there is a defect with the pads. I'll keep everyone who's interested posted on my findings.
just as a point of reference... so did Alpha and Beta owners.
04-29-2012, 04:34 PM
#20
The V8 Porschephile
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Back in the old days when using newly introduced metallic pads, it was not unusual to find a chunk of brass factory-molded into the pad causing scoring.
Gawd I feel old...
Gawd I feel old...
05-11-2012, 09:59 PM
#22
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update...took the P!G to an indy shop..he said there may be a defect in the pad, but wont know until he gets it out. Went ahead and got new hawk ceramics for the front, along with rotor resurface..will have mystery solved Wed.
05-13-2012, 08:25 PM
#24
Three Wheelin'
Some of the factory pads have internal brass pins instead of external rivets in addtion to bonding to help bond the material to the backing plates. They won't scream like a metal rivet does when they end up hitting the rotors but they can do some rotor damage. I don't believe in resurfacing rotors, you end up removing more material which cuts down on the heat sink of the rotor and they are more likely to warp the next time. If you do make sure they follow the manufacturers instructions on Min. Rotor thickness though as that is a spec that corresponds to the Piston extension in the calipers too.
09-24-2012, 02:51 PM
#26
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Just wondering, are the powerslot rotors and EBC pads provides same stopping power?
01-16-2017, 10:44 PM
#27
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That's not uneven wear you're seeing - the pads are chamfered like that purposely. Based on the picture it looks like the thickness is fine and the rotors look good too, but hard to tell for sure. The is a bit concerning but doesn't look like a big deal. Assuming they are in fact fairly new (both pads & rotors) I'd recommend cleaning the brakes thoroughly with brake cleaner and then bedding them in again using the Zeckhausen procedure (or something similar - there are a few). That should fix the squealing issue if done properly. If it doesn't I'd suggest taking the pads out and inspecting them to make sure they were installed correctly and perhaps clean off the backs and use new anti-squeal compound if Porsche recommends using that. If it's not recommended, then just clean them up and reinstall based on the Porsche recommended procedure. That'll also give you a chance to really check out that crack too. And finally, if they're not OEM pads or rotors see if you can figure out what they are and make sure they're a good brand. If not, you may want to consider changing them to OEM or another proven brand. Good luck & let us know how you make out!
01-17-2017, 09:45 AM
#28
Thanks for the tip. We had squeaky breaks since we replaced our brake pads 8+ months ago and couldn't figure what was going on. Followed Zeckhausen bedding procedure to the T and squeaking is gone. Unsure if this is a temporary solution or permanent, let's hope this permanent until the next replacement. Interestingly the original pads that came with Cayenne in '12 did not have this issue, rear pads weren't replaced and they don't squeak and only the front did.
The ceramic pads will fix that, but are not the best choice for race track use.
