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        General >> Problems >> Shaking when braking
        
(Message started by: Ranjo on May 2^nd, 2005, 9:22pm)

Title: Shaking when braking
Post by Ranjo on May 2^nd, 2005, 9:22pm

Hi all can anyone advise me why my 2.3 ghia is shaking when i am braking please?

Title: Re: Shaking when braking
Post by philgood on May 2^nd, 2005, 9:30pm

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!

Title: Re: Shaking when braking
Post by bazw on May 2^nd, 2005, 11:52pm

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

Title: Re: Shaking when braking
Post by mr._floppy on May 4^th, 2005, 5:02pm

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.

Title: Re: Shaking when braking
Post by Eddie on May 5^th, 2005, 2:47am

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

Title: Re: Shaking when braking
Post by Ranjo on May 6^th, 2005, 9:45pm

yes eddie have used silicon tyre shine. why?
Thanks guys for the advice will get it checked asap

Title: Re: Shaking when braking
Post by Eddie on May 7^th, 2005, 6:03pm

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

Title: Re: Shaking when braking
Post by Eric_R on May 7^th, 2005, 7:58pm

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.

http://www.fordscorpio.co.uk/images/wlclean6.JPG

Title: Re: Shaking when braking
Post by Eddie on May 8^th, 2005, 3:34am

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

Title: Re: Shaking when braking
Post by Octavian_P on May 8^th, 2005, 6:11pm

The same goes for me "Shaking when braking", brand new brake pads, but the front disks are wornt out.