Technical What causes warped discs?

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Technical What causes warped discs?

I would say a combination of an inferior product and excessive heat are you a heavy braker Dan and whats the mileage of the disks ?
 
Also sitting on your brakes whilst stationary at traffic lights could cause excess heat on one part of the disc, which therefore warps....[plus of course blinding the geezer behind].
 
Just checked mine this morning, they are not warped but i reckon when the pads go next time, the discs will need doing. Possibly not going to be fiat items, might change them to something else- dont know yet.

The pads i have got on at the moment are cheap ones but the work just as good, unless you drive like a joyrider for about 30 mins and the fade is terrorfying!

But that said for everday driving and motorway use, no fade yet!

Reason I had the wheels off this morning was a perminant squeal on the front wheels not changing with breaking, wasnt the bearings but i think the metal plate thing behind the disc was touching something as it pushing that back a bit seemed to have cured it. also a quick bang on the back of the pads to remove crud as well made it better!
 
Log onto www.Tuning.co.uk and follow the link Fast fiat and then to Stilo and then brakes the EBC Turbo grooved and dimpled are £140 for the JTD the same as the 1.8 these are also anodised to stop corrosion :)
 
Stuart DemonD said:
I run EBC TGs on mine, together with the greenstuff pads :)

Me too, they were already fitted when I got the car so I can't compare them to the standard items but they certainly do the job :) and looking on the EBC website not too pricey.

Plus you can hear them going shooooooosh when you've got the window open :yum:
 
I saw on a website somewhere that in most cases 'warped discs' are actually not warped but have a buildup of brake material caused usually by the pads being held against the disc while hot i.e the pad material to binding to the disc.

Can't find the site at the moment though.
 
Hellcat said:
I saw on a website somewhere that in most cases 'warped discs' are actually not warped but have a buildup of brake material caused usually by the pads being held against the disc while hot i.e the pad material to binding to the disc.

Can't find the site at the moment though.

That would make interesting reading Rob if you COULD dig that out its always handy to have those little bits of extra information (y) of course in the garages they check for run out with a dial gauge to see if theres any distortion but it makes me wonder if this is correct Re- brake material on discs how many actually in that case do need replacing :chin: <--- Stu's favourite smiley :D
 
stilosporting said:
iirc you can 'skim' (sp) the discs to un-warp them :D dont know what the costs are though!

The only problem with this is the amount of distortion which may have occurred you have to maintain a minimum thickness and standard disks can be obtained at a reasonable price from a number of places :) so it may not be a viable proposition to skim them we used to do this all the time [on night shifts];) when I worked at allied steel :D
 
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