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YOUR RESEARCHBraking Help!
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Check any installation problems or early/premature hardware failure problems
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Whenever I hear/read of brakes making noises after being worked on my first recommendation is that the brakes be checked for any installation problems or early/premature hardware failure problems.
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Check any installation problems or early/premature hardware failure problems
No successful repair reported for this finding.
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Reported fixes
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Unsuccessful attempts
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Read evidence and context
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Performed · outcome unconfirmed
Whenever I hear/read of brakes making noises after being worked on my first recommendation is that the brakes be checked for any installation problems or early/premature hardware failure problems.
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Hi guys,
I noticed a funny grinding sound whenever i start braking but at speeds above 90km/h. It sounds more like zzzzzzzzzzzzzzzzzzzz .... haha
Any ideas on what may cause this sound?
Cheers
Breaking the pads in is a good thing to do. Not certain but some hard braking without the car coming to a stop and letting off then build up speed again and hard brake again always not coming to a stop so that maybe rolling around 25mph or 35kph. Best to start braking from around 100kph or 60mph or higher I'd figure. Brake manufacturer should have a brake in procedure you could read.
Other than that maybe there are some clips off or something.
Whenever I hear/read of brakes making noises after being worked on my first recommendation is that the brakes be checked for any installation problems or early/premature hardware failure problems.
Ideally you'd want to focus on the wheel or at least the end of the car from where the noise appears to be coming from.
You can give all rotors -- outside and inside surfaces -- a good inspection looking for any obvious signs of trouble: scoring or cracks or well just anything. You have 4 brakes and chances are they are not all bad so you'll have 3 good ones and one bad one and the bad one will (should) stand out.
If you see nothing obvious then the wheel has to come off and the brake hardware checked to make sure a retaining clip has *not* come loose or a pin broke or a retainer broke or a piece of pad came loose from the backing plate.
But really you look for anything amiss.
Sincerely,
Macster.
If you are doing the brake jod yoruself don't toque the bolts like a do it yourself video on here shows doing multiple repeated torquings of the same bolt. One time shots to the desired torque or progressing up in pressure to the desired level. Multiple applications of the desire pressure goes over the pressure each time additional torquing is done which stretches the threads and or cracks the bolt which ruins the ideal pressure and can lead to a screwed up installation ie some bolts too loose due to the stretch and or cracks.
I've never done the porsche brakes but isn't there some sort of vibration goop or rubber sealant for between pistons and pad. That trick works to get rid of some odd noises brakes can make.
