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Topic: Shaking when braking (Read 473 times) |
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Ranjo
Newbie
Posts: 16
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Shaking when braking
« on: May 2nd, 2005, 9:22pm » |
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Hi all can anyone advise me why my 2.3 ghia is shaking when i am braking please?
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philgood
Full Member
2.9l 12v Auto (95 M) Ultima Saloon (Aubergine)
Posts: 122
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Re: Shaking when braking
« Reply #1 on: May 2nd, 2005, 9:30pm » |
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Probably warped brake disks! But if your lucky it’s a build up of corrosion on them, in which case it’s only a matter of removing the build up. If the steering wheel shakes at the same time you are looking at the front ones. If the whole car shudders it could be the rear ones. Just remember if you replace the disks the pads should be replaced as well!
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Regards
Phil.
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bazw
Junior Member
fast, cheap and works you can have 2
  
Posts: 52
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Re: Shaking when braking
« Reply #2 on: May 2nd, 2005, 11:52pm » |
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as phil said it could be warped or it may be the disc starting to collaps(webs on the vented fronts can rust then crush) also remember to change both sides at the same time , things like discs and pads and shocks should be donwe as a set
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the wright brothers were not the first to fly - just the first not to crash
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mr._floppy
Junior Member
Posts: 100
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Re: Shaking when braking
« Reply #3 on: May 4th, 2005, 5:02pm » |
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A build up of corrosion on the discs ( usually the inboard side where you can't see ) is the most common cause of shudder , the disc corrosion sometimes causes ( like in my case ) the brake pad material to separate from the backing plate . Rather dangerous.
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Eddie
Full Member
Must try a different shampoo!
Posts: 495
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Re: Shaking when braking
« Reply #4 on: May 5th, 2005, 2:47am » |
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In order of likelyhood-
Warped disk(s).
Worn suspension bushes.
Duff shock absorbers
Other (unusual)brake fault.
Have you recently used silicon tyre shine?
eddie
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Ranjo
Newbie
Posts: 16
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Re: Shaking when braking
« Reply #5 on: May 6th, 2005, 9:45pm » |
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yes eddie have used silicon tyre shine. why?
Thanks guys for the advice will get it checked asap
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Eddie
Full Member
Must try a different shampoo!
Posts: 495
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Re: Shaking when braking
« Reply #6 on: May 7th, 2005, 6:03pm » |
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If you have fairly open style of alloys then silicon oversparay can get on the OUTER part of the disk,lubricating it and reducing its friction and consequently, due to differential temperature on either side of the disk, you end up with warped disks and thus shaking under braking.
I actually failed an MOT due to this,tarted the car up prior to test including "silly" spray on tyres (and disks as it turned out!). Failed due to braking efficiency,cured by a good jet washing once I realized what the problem was.
eddie
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Eric_R
Administrator
Cosworth Owner 1998 - 2006 & site co-founder
Posts: 1792
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Re: Shaking when braking
« Reply #7 on: May 7th, 2005, 7:58pm » |
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IMO silicon tyre shine is OTT. It looks like you're trying too hard.
I use ordinary shoe polish and a shoe brush. It brings the rubber up like new, without that artifical gloss. Tyre manufacturers actually recommend a wax rather than proprietory cleaners.
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After a Cosworth, anything else is just ... ordinary
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Eddie
Full Member
Must try a different shampoo!
Posts: 495
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Re: Shaking when braking
« Reply #8 on: May 8th, 2005, 3:34am » |
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Dont tell me Eric, I gave my 'silly' stuff to the Mrs to spray on the the belt of her walking machine.
I,m back to Cherry Blossom/Kiwi on the tyres.
eddie
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Octavian_P
Senior Member
Posts: 1126
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Re: Shaking when braking
« Reply #9 on: May 8th, 2005, 6:11pm » |
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The same goes for me "Shaking when braking", brand new brake pads, but the front disks are wornt out.
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2.0 16V Ultima|2.3 16V Ghia|2.9 24V Cosworth Ghia
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