New Black Diamond Brakes

Can do mate, no problem. I think it's worth a try with some "regular" pads if only to compare. If those discs are warping you need to contact the supplier Steve, they must be guaranteed?

Tony.
 
t-tony said:
Can do mate, no problem. I think it's worth a try with some "regular" pads if only to compare. If those discs are warping you need to contact the supplier Steve, they must be guaranteed?

Tony.
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Thanks Tony,yes there is a warranty with them but I didn't print off the on line receipt :rolleyes:. I will have a record of payment on a bank statement though.
It's not good if they are warping already though :( they weren't cheap at £360 :mad:.

Steve
 
Mate, those are quality discs and don't warp easily, it has to be down to the extra braking you are having to do, if your pads a popping and crackling when you get out of the car they must be knackered.
Sounds like they are not gripping the disc and causing a massive amount of friction which is causing the heat.
 
Sean d said:
Mate, those are quality discs and don't warp easily, it has to be down to the extra braking you are having to do, if your pads a popping and crackling when you get out of the car they must be knackered.
Sounds like they are not gripping the disc and causing a massive amount of friction which is causing the heat.
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To be fair they only make that noise after really caning it when out on my own,they don't do it under normal driving conditions.
Would new brake fluid have any impact on the juddering ?

Steve
 
The juddering can be brake pad transfer, i.e. Bits of your pads attached to the disc, I get this sometimes at the start of a track day, it soon wears off.
 
Brian H said:
The juddering can be brake pad transfer, i.e. Bits of your pads attached to the disc, I get this sometimes at the start of a track day, it soon wears off.
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Thanks Brian,I didn't know that could happen. Every day's a school day.

Steve
 
Dont panic I fitted black diamond disks and red stuff pads on my old girl, took forever to bed in but when they do:thumbsup: Go steady with them for a few hundred miles.
 
t-tony said:
If they needed any special preparation it would have told you on the packaging I would have thought Steve, my guess is you have to be fairly brutal with them to get them to "bite" for a start. Roy said his need some warm up every time he uses his car too. It's very unlikely that you will have fitted them incorrectly mate. Have you looked on their website for "bed in " info?

Tony.
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Thats true Tony, I have to stand on mine when they're cold but the pay off is worth it when they warm up
 
I doubt it is the disc warping, more like a calliper grabbing, Sticking piston or sliders.
 
Nodzed said:
Dont panic I fitted black diamond disks and red stuff pads on my old girl, took forever to bed in but when they do:thumbsup: Go steady with them for a few hundred miles.
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Thanks Niall,I took it easy on them for a few hundred miles,then did the progressive braking runs and all that and kept biding my time with them but after a few thousand miles you'd think they'd be up to optimum working condition.

Steve
 
Lee said:
I doubt it is the disc warping, more like a calliper grabbing, Sticking piston or sliders.
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The front calipers are fairly new Lee and the back ones were well cleaned and sliders lubed when I took them off for painting,but when I put the new pads in they were quite tight to fit in as they seemed very thick so the pistons were pushed right back in.
Could that cause problems ?.

Steve
 
Bozzy said:
The front calipers are fairly new Lee and the back ones were well cleaned and sliders lubed when I took them off for painting,but when I put the new pads in they were quite tight to fit in as they seemed very thick so the pistons were pushed right back in.
Could that cause problems ?.

Steve
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Not on the rear. The front will cause juddering. Like I showed in that image I've had them discs glowing red. Something's not quite right with the brake setup.
 
Bozzy said:
they weren't cheap at £360
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Most definitely not mate. Fluid can't cause juddering but juddering can cause aeration of fluid due to piston being moved back and forth very quickly (juddering), which can give a slightly spongy pedal.
Brian H said:
Bit more info here, it gets a bit involved but would be surprised at a warped disc.

http://www.stoptech.com/technical-support/technical-white-papers/-warped-brake-disc-and-other-myths

Hope you did not get them this hot!!!! This is what happens when you do not bed brakes in properly...

IMG_0534.jpg
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Brave doing that in a Peugeot.;)

Tony.
 
I would go along with the pad transfer mentioned by Brian H, I have got EBC red stuff pads and discs and had this judder for a while. I checked the discs with a DTI and found no run out. I then found a description on Bimmerforums ( I can't find it now) which advised a series of stops from High speed and the letting them cool. This cleared it. :thumbsup:
 
Bozzy said:
Thanks Niall,I took it easy on them for a few hundred miles,then did the progressive braking runs and all that and kept biding my time with them but after a few thousand miles you'd think they'd be up to optimum working condition.

Steve
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Oh yeh definitely, sorry mate thought you had just fitted them, mine took about 200 to get to optimum, if they still aren't any good after a few thousand some issue somewhere, doubt its the disks though more likely the pads IMO
Niall
 
Just a thought if you have juddering after changing the disks that happened to me too, after I put the new disk and pads on I had brake judder that wasn't there with the old ones, I was convinced it was the new disks but @Lee advised I could have damaged the caliper while pushing the piston back in, I still thought it was the disks so borrowed a run out gauge and checked the problem side and all was in tolerance, so I bit the bullet and got new calipers and problem solved.
Lee 1 Nodzed 0 =))=))
 
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A little update.........
Phoned Crest motor sport where I bought them from,the guy said they'd had no negative feed back and has the same set up on his own car and had no issues.
So he told me to phone Black Diamond which I did. They said they should work perfect straight out the box even if you cain them straight away.
He suggested either sticking caliper,contaminated pads/disks,air in the fluid and so on and was surprised they're not performing.
I can feel a zed shed midlands visit coming on :whistle:.
@t-tony .......help :arghh:......pleasey :D.

Steve
 
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