15 replies to this topic

[Beddo88]

Simple question, i'm getting a fair bit of judder under heavy braking. Its a perfectly standard 88 city E, and the juddering stops when the brakes are released. Have checked the bearings for movement and they seem fine. Any ideas?

Could it be the ABS kicking in?

Cheers, Dan

[mike.]

First thing to check is your wheel nuts. If they're loose they'll let the wheel wobble under braking force.

[slyoldfox2001]

it should have 8.4" brake discs fitted - if so theres a chance they might be warpped.

classic minis dont have abs :0)

[Elfie]

Check for play in the ball joints, I had to re-shim mine to stop it but you might get away with a good greasing of the old nipples

[WiredbyWilson]

More than likely warped discs......

[Guess-Works.com]

Another vote for warped disks...

Easy to check, jack up front of car, remove road wheel and spin, you be able to see the runout on the disk against the caliper

Edited by Guess-Works.com, 12 February 2010 - 02:46 PM.

[cooperdan]

Quickly hijacking...

Urm what cause's warped disks apart from heat...age etc?

[Dolly 89]

will be warped discs i should think had the same problem on mine got new discs and pads and they where fine again the funny thing was the pads looked nearly new and the discs looked good aswell but made loads of difference no judder under braking now

[captainjack15]

I'm saying warped discs.

I replaced my brakes last weekend after they had warped discs. Annoying I tell you

[Beddo88]

The ABS bit was a joke

It does have the 8.4" discs, sorry forgot to mention.

What can cause a disc to warp?

I've replaced them all probably 2000 miles ago (the old ones were VERY worn) so looks good for checking those then. What is the best way to bed new discs in so that they don't warp? (bearing in mind it has to be done legally and in a mini with literally 2 dog powers)

[mickyh]

probabley warped disks, i no this sound stupid but check your flange bolts when i was breaking heavy mine done this and was ok when not breaking then after my flange bolts sheered off and the brakes locked up so just a thought.

[Guess-Works.com]

(bearing in mind it has to be done legally and in a mini with literally 2 dog powers)

Drive sensibly, don't do any unnecessary hard braking, and don't ride the brakes...

This is more to get the pads bedded in that the disks...

[shedonwheels]

Quickly hijacking...

Urm what cause's warped disks apart from heat...age etc?

What can cause a disc to warp?

Sorry to hijack this but as above what can cause warped discs? Could it poss be very very hard braking eg emergency stop from high speed?

Edited by shedonwheels, 12 February 2010 - 09:57 PM.

[mini13]

what discs did you buy?

cheap ones tend to warp more easily.

[shedonwheels]

Well the original poster has standard factory discs, as do I. So the cause? Heat?