PussCat wrote:
El dude wrote:
the disks get 'very' cold cos she sits on the drive most of the time, then 'very' hot if driven at a meet... and then the disks warp! I've had mine skimmed twice now and it did solve the problem, albeit it a temporary fix. So...
Just to clarify again... the judder you feel is not 'warping' of the disc... this is ALWAYS a mis-diagnosis... and sadly mechanics still widely use this mis-diagnosis too...
Its the uneven layer of pad material transfered to the disc.... actually warping an alcon disc i woud think would be extremely unlikely!...
If the judder is severe and has been on-going for a while it may be difficult to cure with a new skim..however... iv'e experienced the same judder early on in my FRP days..
and always managed to recify it without the need for being ripped off with a £100 skim..(mentioning no mames..
) Skimming the disc and not changing driving habits will only see a quick return of the problem....
I recommend every FRP have a good read here...
http://www.stoptech.com/tech_info/wp_wa ... disk.shtml this gave me some great advice and ideas years ago... and putting some of these in practice really has worked...
My 'basic' explanation of how i bed in the brakes is this...
Warm up the setup gradually doing 60-10mph stops...not hard braking but enough to give the discs a firm even contact of pad!
When warmed up, the pads should now START to transmit material to the disc in a uniform fashion....this is the important bit..
Then i take the car to high speed 80+ lol and brake long and hard down to 5mph...as the car slows ...press harder and harder to give the discs and proper good scrub round... do this a couple of times till the discs are really quite hot (FAR too hot to touch ideally...lol)
now take a steady drive back home...your done...
once thats been done a couple of times...an ocassional enthusiastic drive is all that is need to keep them tip top... it's all about getting it right from the start thats the key....just make sure it's on a dry day on a good quality road surface as you don't want ABS intervention ideally...
....always in a dead straight line too
Also, patience is needed with immature pads.... not to drive them too hard on the first bedding in session.... but don't be afraid of them smelling...thats a perfectly normal proccess of the moulding resins burning off... keep going...
The best way and easiest BY FAR of bedding in new discs is to use a matured pad...maybe several weeks old for example.... that way, you can go straight into bedding as enthusiastic as you like.... all this is explained in the link.....iv'e tried it all... and it does work for sure....
Regards
Chris