View Full Version : Pagid discs, warped?
Can anybody confirm my fears? I've just got home from Harrogate after visiting relatives, and after 250 miles on the M-Way today I have a feeling that one of my front discs is warped. Just checked it out with a torch and the wear on the outer edge of the disc is uneven (some dirty, some shiny, if you know what I mean).
It's only noticeable at higher speeds, after 60mph, but the vibration's definitely there. :(
My question now is where do I stand on warranty? They've only been on there for about 4 months, and I've done less than 3,500 miles in that time.
Have to admit that I didn't expect to have problems with the Pagid kit, and I'm disappointed. I haven't taken the car on the track, and I don't exactly put them through their paces on the road.
If anybody has had a problem like this before please let me know.
Thanks,
Adam
Have never heard of a warped pagid disc, but if the disc where to be that warped that you could see it, I think it would shake alot even at much lower speeds.
I have never heard of a warped pagid disc, but you might want to PM Bill (ibizacupra) as he's our brake guru or maybe Mark (Zboyd) who ran them for quite a while.
have you taken them off? (if not - do this)
it'd be worth checking to see that your callipers are bolted on tight as well.
can you recollect going for a blat then sitting with your foot on the brake?
When my EBC discs warped, the vibration through the pedal was huge, at all speeds but when I took the discs off there was no visible warping or uneven wear at all.
Now running Pagid, hope they don't go the same way:(
The caliper is fitted with sleaves which move side to side these have a nasty habit of seizing up it will be a good idea to check that these are ok as what you think could be a warped disc is infact a seized up sleave.to check this remove your disc re-fit your caliper
and see if it moves freely if it doesnt then remove the sleaves clean with a wire brush wash out rubber gaitor with a lube spray then dry off. cover the slide in copper grease and re-fit and move side to side and should be all o.k.
also check the plastic cover for the caliper bolt is still on if not get some or otherwise this will allow water in and seize up again:sick:
Cheers for all the suggestions guys, much appreciated.
Originally posted by m0rk
can you recollect going for a blat then sitting with your foot on the brake?
I parked the car up after leaving the M1 and driving at normal speeds for about four miles. As soon as I arrived it started snowing, so I was wondering if the rapid cooling could have affected it? I didn't move the car again for two days, then when I did move it, everything felt fine so I continued.
The caliper suggestion sounds more likely now, agreed? It could have been stuck to the disc?
Originally posted by prc
I have never heard of a warped pagid disc, but you might want to PM Bill (ibizacupra) as he's our brake guru or maybe Mark (Zboyd) who ran them for quite a while.
What do you reckon Bill/Mark?
i'd check that your calliper is tight 1st, initially sounds like your pads just rusted onto the disc (normal) but why it's jusddering i don't know.
i never had any warping even after really heavy use of my pagids.
Mark
Originally posted by m0rk
i'd check that your calliper is tight 1st, initially sounds like your pads just rusted onto the disc (normal) but why it's jusddering i don't know.
i never had any warping even after really heavy use of my pagids.
Mark
I think that might be the reason. At least acourding to this article:
http://www.stoptech.com/whitepapers/warped_rotors_myth.htm
"In fact every case of "warped brake disc" that I have investigated, whether on a racing car or a street car, has turned out to be friction pad material transferred unevenly to the surface of the disc..."
When I first bought my V5, I had a judder from the brakes. After about a week the judder disappeared, and the only thing I can think it was, was that as Mark said, the pad had rusted on, and it took a while for the disc to become smooth once again.
Am feeling happier about this already. I didn't fancy having to replace the discs again, whether I was paying for them or not. Thanks again for all the info, it's greatly appreciated.
Have to admit I didn't think that the discs could have warped so easily.
Just an update, I spoke to Andy at Redline where I bought the discs. He has recommended I go through a bedding in process again doing a few speed runs braking from 50 - 25mph, then 60 - 25mph etc then letting the discs cool. If I see no difference with the problem after this he will speak to Pagid and discuss replacing the discs under warranty.
Have to say I'm thoroughly impressed with the service I've received from Redline, and I'll be carrying out my braking tests this weekend to see how it goes. I'm convinced now that it's pad material left on the disc and hopefully this will sort it out.
Will let you all know!
Adam
danny842003
18-01-2004, 11:58
if it is pad left on the disc a bit of emmery tape and a bit of elbow grease will bvring it wright off.
Originally posted by danny842003
if it is pad left on the disc a bit of emmery tape and a bit of elbow grease will bvring it wright off.
Is this the same kinda thing as "garnet" paper? Like a very fine sandpaper?
Tried the series of heavy braking tests to see if I could remove the crap on the disc that way, not much success just a little less rubber on the Potenzas after getting a little carried away and locking the brakes! :D
Time for plan B. Removing the wheel (either this weekend or next) and rubbing it down with fine sandpaper. Hopefully that'll be it, otherwise I'm gonna have to change the discs... :mad:
Has anybody done this before and if so do you have any tips for me? One suggestion I had was only rubbing the disc in one direction as oppose to back and forth. Make sense?
It's not really affecting the braking performance of the car, it just irritates me as I like everything to work properly... :)
can you get a picture of the rust?
Sorry for the delay in replying m0rk...
Don't have a digital camera I'm afraid, or the facility to download from my T610 (wrong tariff apparently).
I'm going back to Wales this weekend and I'm gonna take the disc off to check if it's warped, and rub it down if necessary.
OK, so I still haven't taken the brakes apart yet, or rubbed down the disc.
Problem is, it's inconsistent. Sometimes it's smooth under braking (typically when I tried to show a mate what the problem was), other times it's juddering (not badly, but enough to p*ss me off). This suggests to me that it's not a warped disc.
Does anybody in the Kent area know their stuff about brakes? Perhaps I could get a second opinion...
It's driving me mad... :mad:
it's not your wheel bearing is it?
rumble rumble rumble as you go round a corner?
Originally posted by m0rk
it's not your wheel bearing is it?
rumble rumble rumble as you go round a corner?
Nah, it's silent. No noise under braking either.
no insult intended here:
how do you know you put them together right?
i'm just wondering if you missed doing up a bolt maybe?
I never fitted them, my SEAT dealer did it. And they were on for over 3,500 miles before any problems appeared.
Weather forecast looks good for this weekend, I think I'll take a look at the disc etc then.
This might be the same problem I'm having now, with the OE discs. Instead of the disc wall being straight it's got a slight inward curved.
To put it better instead of being:
"|" it's more like "("
When braking gently from speed, I get a woo-woo sound from brakes. No vibration and it doesn't do it when braking hard, just a woo-woo...:confused: :confused:
I don't get any unfamiliar sounds, just the vibrations...
OK, so it's this old chestnut again. :D
It's warped. What I initially thought (and hoped) was everything but, turns out to be the answer in the end. Finally got around to taking the wheel of and checking, everything is fixed solid, the disc is clean...
Took the car to my SEAT dealer, they put the car on the rollers (for MOT tests) and the gauge was fluctuating badly on the passenger side front wheel, and slightly on the drivers side (for comparison the test was carried out on the rear brakes, which were consistent all the way around).
Now I'm hoping I can get them replaced under warranty by Pagid, as they are only 6 months old and have covered less than 6,000 miles in that time... :(
Either way, I now have to pay for new pads and fitting. Joy.
I'm seriously tempted to just put SEAT parts back on the car...
Note to self, it it ain't broke, don't try to fix it. :p
Well, I've finally pulled my finger out and replaced the warped discs. A new set of discs and pads arrived last week, so I fitted them on Saturday.
Once I'd removed the passenger side disc (the one causing the vibration) it was clear that it was warped. On the inside of the disc (so not visible while on the car) one of the grooves was so worn it was hardly there, yet the one opposite was hardly touched! A similar, but not so severe, case was evident on the drivers side disc.
As soon as we took to the road with the new set it was instantly better. :) Only problem is now that I'm really catious on how I brake in fear of it happening again (ridiculous I know).
Does anyone have any bedding in tips? I want to be totally sure that I'm doing everything right this time (not that I think it was down to me that they warped in the first case!).
Cheers.