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YOUR RESEARCHBrake pads sound loose in calipers
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Replace 'em
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Suggestion
the thin plate are at the back are shimms, but if you've just changed 'em then worth having another look
Leading evidence: 'Replace 'em' (no explicit attributable resolution; this is a reported action or suggestion). Across 1 matching discussions, The most frequently discussed action is 'Replace 'em' (1 discussions). For that action, 0 discussions report a resolution and 0 report an unsuccessful attempt. No action has an explicit, attributable resolution report under the current rules. These are forum reports and suggestions, not a confirmed diagnosis.
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911uk: 1 discussions
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I changed the front discs and pads a week ago and ever since they sound like they're lose in the calipers. When i tap the brake pedal you can hear them jumping.
The only think i can think of is the lack of shimms, there wasn't any on the old pads (i'm presuming that shimms are a separate plate) so I assumed they were'nt needed. There is a very thin plate attached to the back of the new pads (which are Textar from Euro Car Parts) - are these the shimms?
I'll have a good look at the weekend now that the car is off the road for a suspected head gasket.
I'm no stranger to discs and pads having changed them on every car i've had (about 8) so i cant imagine i've missed something. Maybe one of the pots is seased in the caliper but they moved freely when i pushed them back to accommodate the new pads.
The discs and pads that came off were VERY heavily grooved, so much so that once off I could place the pad on the disc and spin the pad round the disc - as if it was on tram lines. Both discs were the same and the grooves were only on the inside.
Any ideas?
Grooving is a normal side effect of hard pads in discs, especially Porsche discs with the closer arrangement of the drilled holes
the thin plate are at the back are shimms, but if you've just changed 'em then worth having another look
Did you reuse or remove the spiders/dampeners that slot into the caliper pots?
In the image below they are just above the wear sensors and below the left disc
Although it's tempting to reuse these but they are adhesive and stick to the pad stopping the pad from moving/vibrating.
PorscheShop, Design911, any OPC, I bet Sid might be able to help there too. They are a very common item, yet stupidly expensive for a sticky pad and some aluminium
