corsa120
Member
Registered: 4th May 02
Location: Northamptonshire
User status: Offline
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fitted my v6 brakes with black diamond grooved/drilled discs now braking is all ok unless u are hard braking from about 70mph and above, i get alot of judder from pedal and steering wheel
do u think its warped discs as they look fine and sit fine etc, one thing i have noticed is on outer edge of disc there is marks of black, and i painted the inside of calipers black so wondering if discs are to big but why does it only do it at higher speeds
any idea's b4 i remove front wheels any else had similar prob
also i thinking b4 i buy discs i may file/drill caliper holes out so i can move caliper towards rim bit more.
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Joe
Member
Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
User status: Offline
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Disc judder usually only happens at higher speeds unless they are really warped, you cant really tell they are by just looking though.
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scooby80uk
Member
Registered: 27th Oct 05
Location: Sunderland,Tyne and Wear
User status: Offline
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Sounds like warped disks
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corsa120
Member
Registered: 4th May 02
Location: Northamptonshire
User status: Offline
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cheez dudes ill c what happens
lets hope i get big bonus as cant afford any for next couple of weeks
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Joe
Member
Registered: 20th Jun 04
Location: Hesketh Bank, Lancashire
User status: Offline
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I'd just leave it be anyway, if you can put up with the vibration neway. Mine judder when im braking heavily i just leave it be
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corsa120
Member
Registered: 4th May 02
Location: Northamptonshire
User status: Offline
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yeh its not to bad it when u go high speeds like 70mph, 45-50 and below is ok really pedla feels fine so they must just be warped slightly
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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are the disks new or used? dont file the caliper!
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Rileysport
Member
Registered: 18th Jun 04
Location: West Yorkshire
User status: Offline
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could also be a caliper fault or a worn bush, are the bolts all nice and tight???
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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i had this problem with a set of black diamond discs.... this was the problem....
check the inside of the discs!
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Siberia
Member
Registered: 9th Oct 03
Location: Leprechaun Land Drives : Zafira GSI
User status: Offline
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mark thats pretty fecking horendous there looks like you got a chizzle out to them
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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i think someone did lol!
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willay
Moderator
Organiser: South East, National Events
Premium Member
Registered: 10th Nov 02
Location: Roydon, Essex
User status: Offline
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if they are new disks, remember they need bedding in before they are super fantastic.
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broster
Premium Member
Registered: 6th Dec 02
Location: Drives: E39
User status: Offline
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also if they wernt bedded in properly, then there can be high spots of brake pad compound on the discs which lead to an effect similar to warped discs! could skim them again?
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James R
Member
Registered: 4th Feb 03
Location: 205GTi16/306GTi16
User status: Offline
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If all the bits are new, check that the drill holes are chamffered, as this could be making the disc sit oddly,
Then clean off the disc with some brake cleaner, cellulose thinner or similar to remove and ocmtamination as these will cause a judder. Then if all else fail put the old set up back on and see if it stops the porblem, if it's still there then think about tie bar bushes.
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