All Things Mk5 > Performance Modifications
Warped front discs with R32/S3 setup
rich83:
What i want to know is... how blooming fast are you driving on the roads? :signLOL: :signLOL:
Ive got OEM r32 pads in mine and although they are not very 'bitey' Ive not managed to get them to a point where they start to go off and leave material behind. Although they are starting to cut grooves in my discs where the drill holes are.
the bruce:
--- Quote from: lamas on September 01, 2011, 10:51:17 pm ---In less than a thousand km, my steering wheel starts juddering and I also note the vibration
through the brake pedal and the seat. What "part" could be the responsible of?
A couple of ideas:
Broken bushes
Deformed Wishbones
Deformed Hubs
Sticky calipers piston
Bad Bearings
--- End quote ---
Just my thoughts:
- wheel bolts fastened too strong (first by hand, then 120 Nm)
- warped hubs
- pad deposits on disc surface after braking to zero speed
Worn bushes and/or bearings just amplify existing vibrations.
:ashamed:
john_o:
Hi,
have you got any pictures of the discs youve replaced?
Did you actually prove they were warped(dial out guage), or was it just the vibration that makes you think they are warped?
Have the brakes worked ok since fitted? have they warped from day one?
is it both front discs?
Beddie:
--- Quote from: lamas on September 02, 2011, 04:41:11 pm ---
@Beddie: Could you please explain how to do a proper bedding in procedure? Thanks!
--- End quote ---
Here you go mate, try this link and then at the bottom you will see a couple more on how to bed the pads in :happy2:
http://www.stoptech.com/tech_info/wp_bedintheory.shtml
Top Cat:
I am with Beddie, it will just be contaminated disc's, in my experience they only way to cure it properly is getting them skimmed. It is possible to drive through the vibration and try and clean them that way but it takes some doing. I fitted a B5 RS 4 front brake kit to mine, worked fine then changed the pads for a track day and followed the bedding in procedure to the letter. Drove all the way to germany with the brakes working fine got near the Nurburgring and they started to vibrate really bad Took the wheels off twice and cleaned the discs, also drove the hell out of it with lots of heavy braking, still vibrated like hell. :sad1: Came home 2 weeks later the vibration went. :stupid:
I would get the discs lightly skimmed, fit some decent pads then go and bed them in hard. find somewhere to get your speed into 3 figures then apply a hard brake application right down to 30 MPH then keep repeating the process a good few times. :happy2:
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