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[portomega]

I was coming down a pretty steep hill last night and as i was braking as the hill goes from 60mph to 30mph half way down i got alot of vibration from the steering wheel , i was braking pretty hard as the police like to hide a speed camera van at the bottom of the hill to catch people that dont slow down enough at the half way point ( sneaky gits!!!)
What could have caused such a vibration? warped disks? or could the tracking and balacing be out as i havent had it done it quite a while  :-/

[Welung666]

Most likely warped disks, easiest way to check is to jack a wheel up and spin it slowly, you'll feel it bind in about the same place every turn

[portomega]

cheers will give it a try later when the rain stops, what causes dics to warp?, had a similar thing keep happening on my old vectra was sick of changing them  

[portomega]

i think i mean "DISKS to warp" lol !!

[vauxmad]

yeah deffo warped disks

[Welung666]

Disks warp with heat I.E. breaking hard on a long fast downhill to avoid police speed vans

[portomega]

What kinda of prices would i be looking at for a new set of disks? :-?

[Seth]

cheers will give it a try later when the rain stops, what causes dics to warp?, had a similar thing keep happening on my old vectra was sick of changing them  

Often caused by keeping your foot on the brake pedal when stationary after hard braking.
The heat is then not dissipated from the area where the pads contact the disc.
Try Cynffig Factors for the discs. Vx for genuine pads, or Huw Jenkins in Nanty for EBC pads. Part number is DP937.

[portomega]

cheers, better stop sitting with my foot on the brakes after coming down the bryn hills then lol i'll go get a price check at those places soon  

[Seth]

cheers, better stop sitting with my foot on the brakes after coming down the bryn hills then lol i'll go get a price check at those places soon  

No prob bud!
Get in touch if you want a hand.

[Pitchfork]

The Beach Boys not in town then?

[portomega]

The Beach Boys not in town then?

  im glad you got it  

[Pitchfork]

The Beach Boys not in town then?

  im glad you got it  

Used to play their stuff back in the 60s!

[Cameron]

Normally vibration under braking is an obvious disc warping but in the omega worn wishbone bushes can cause this too, so before you run off ordering new discs make sure your wishbones are not kaput.  

[tunnie]

not always disc related, could be worn wishbones, front bushes or steering idler arm.

Is it a 'vibration' ie fast, or does the wheel 'shake' ? For me it would shake or wobble, i replaced the pattern discs and pads with geniune (around £75 with TC)

Instant difference! Brakes is one area not to penny pinch