Could someone tell me wtf is going on here??

[belly257]

Right, bit of a dilemma, basically i got some 288mm discs and calipers off a lad down south, you know the cally/cav turbo calipers and discs, i was presuming these were the fial coupe type discs:
http://i257.photobucket.com/albums/hh212/belly257/Olddisc.jpg
the284mm ones which are a straight swap which these at the moment fit fine but they are warped and one has a crack in them, no worrys ebay pick up a new set of decent fiat coupe 20v non turbo:

http://i257.photobucket.com/albums/hh212/belly257/Newdisc2.jpg

but there is a problem, discs will fit on hub fine and i have done the mod of drilling each stud hole out by 1mm, disc fits fine untill wheel is tightened and the outside brake pad in the caliper rubs on the outside disc face and the wheel hardly turns, did the same with some cav turbo drilled and grovved discs aswell, everything measures up the same except the width on the bit of the disc which mounts on the hub is 4mm bigger on the new discs than the old even know there apperently for the same car this bit:
old disc:
http://i257.photobucket.com/albums/hh212/belly257/Olddisc2.jpg

new disc:
http://i257.photobucket.com/albums/hh212/belly257/Newdisc.jpg

will someone please tell me why this is happening as mot time calls thanks

[simonm]

is your caliper slides siezed up

[stt]

id bet that they werent fiat coupe discs but 4 stud 288 vauxhall ones from lmf and the likes

[Pistol Pete]

Check the face of the hub before you mount the disc. Or try and spin the disc without it being mounted to check its not warped.

Also strip the sliders on your calipers. Give them a clean up.

[Jack]

You want the fiat tubo discs, not the N/A ones. The latter are too short, hence the rubbing against the caliper.

[belly257]

You want the fiat tubo discs, not the N/A ones. The latter are too short, hence the rubbing against the caliper.
sure? lol i must of read it wrong somewhere

[Jack]

Judging by the dimenions on brakeparts.co.uk, yeah.

Unfortunately I can't remember what discs I got for mine, whether they were N/A or turbo ones :(

[belly257]

The discs you need for this are the Fiat Coupe 16v/20v N/A discs, NOT the turbo ones. They are 284mm x 22mm x 39.4mm.

says this in articles forum though? thats where i read it

[belly257]

i may need to check my sliders etc although the brakes appear to work fine, will do when it stops raining!

[Jack]

Hmm, maybe I got my calculations the wrong way round above then lol

[belly257]

lol yep, ahwell will have to have a play when the weather improves hopefully tommorow!

[djbrowney]

you have 284 caliper on a 288 disk

Dont forget the 284 breakes came on cav's

And 284 came on vectra's !

[belly257]

you have 284 caliper on a 288 disk

Dont forget the 284 breakes came on cav's

And 284 came on vectra's !
think they are 284 discs as there from a fiat coupe, not sure on calipers, its strange as the old discs were off a fiat coupe though and they work fine, just nackered

[djbrowney]

Show me a picture of the calipers and I will tell you ?

[belly257]

will get you a pic asap, and ive also tryed it with some 288mm discs aswell and they did the same!

[Benn]

Just rte drill some 288 gm discs.

[andy_mk3]

Just rte drill some 288 gm discs.

+1

I drilled my GM discs, with spigot rings and they fit perfectly.

[Stuart]

Just rte drill some 288 gm discs.


Yarp. They are like £20 each from most motorfactors.

[Benn]

Pad and disc on trade club is only £52ish

[belly257]

fixed lol, just got chance to get on here there was an extra bit on the housing which was causing it to ru on the disc, and better still it passed its mot thursday:d