do brake disc bend get warped

[bodgeitjo]

hi as subject says it seems as though my front disc is either bent or warped just wondering if this does happen.it is still in good thick condition.    thanx jo

[ben_haynes]

yes they do warp whe they get hot

[barmiebrumie]

As said yes they do, if when you are slowing down in slow moving traffic you should feel your brake pedal move ''up & down'' slightly when you are applying light pressure on the pedal,

If that makes sense

[paulnb57]

Usually caused after braking getting the discs hot, then standing stationary holding the truck on the footbrake, the disc cools down but not the bit sandwiched between the disc pads then, as the discs cool unevenly, warping can occur.
Paul

[lurch_917]

Q/ are you getting any knoking under breaking as i have had a calliperwear where the pads slot in giving lumpy breaking  these normaly knock slightly when this happens
A/ if this is the case a thin line of weld on the sholder of the pad then ground down is a quick fix or a new calliper

[bodgeitjo]

cheers  guys ordered new brake disc today :roll:.

[muddyjames]

With my rover 620 I always getting warping on new discs. even got the garage to replace one set as they warped so badly and yes, they warped too. I have just come to accept that it is a feature of the car!!

As said above. Holding it on the footbrake doesnt help, but then again I think if you apply the hand break the same will happen to the rear discs? Obviously this wouldn't happen on a disco due to the way the handbreak works!

[Ja1983]

front brakes take most stress (weight goes to front of vehicle under hard braking) thus are effected more than rear..

may not be a warped disc, blems on tyres or missing weights can also give a judder, although it is more commonly noticed on acceleration..
also check shockers and bushes, tracking, and suspension in general. could also be grease on a disc.. resulting in a section of braking surface having more bite than another.. although does burn off eventually

[blackbob]

my friend has just had to replace all the disc,s on his pajero as they over heated on the drive over to bulgaria he was towing a caravan and had to do a emergency stop on the autobarn then had bad brake judder afterwards

[Angus06]

Hi.
Try removing the discs and clean the backside matning face and clean the hub as well. If you do put copper grease on these areas use very little and apply it evenly.
Remember the Ford Sierra's of the 80 and 90's. They all had a reputation of warping discs. Actually most of these never had warped disc's only disc's installed on top of dirt and huge amounts of copper grease.

Casper

[TechnoTurkey]

My Rover 620ti used to eat discs as well. I took it as a feature but it is made 200% worse if you brake hard and long then keep the footbrake applied at a junction, coming off the motorway or a roundabout at the end of a dual track are the usual offenders!

[lurch_917]

in referance to one of your replys saying that aplying the hand break will affect the rear discs the hand break on landys works on a center drum im amazed no body piced this up ???