Looks Like I've Warped A Disk

[wardie]

Had to do some seriously heavy braking on the freeway a couple of days ago and now whenever I touch the brakes over 80 I get a serious shake through the steering. Under 80 I can feel the car modulating as it brakes. As I pull up to a stop I have to ease up on the brakes so it doesn't pull up on the tight spot. There is no real pulsing through the brake pedal but I have had the steering checked for correct alignment and have swapped the wheels front to back with no difference. One mech says it's a warped disk, another reckons it's the slack in the steering box causing the shake. I lean towards the disk.

I can get a disk(s) of a wreck on Sat but they are rusted. Can I hit them with the wire brush to get the worst off then expect the pads to do the rest or will I have to get them machined? Need to have the car for next week as the boss has pulled my leave and I now have to work.

Thanks

Wardie

Edited December 21, 2007 by wardie

[Duncan]

just get the disc machined, as long as it is over minimum thickness it is cheap and easy

[stagefumer11]

Had to do some seriously heavy braking on the freeway a couple of days ago and now whenever I touch the brakes over 80 I get a serious shake through the steering. Under 80 I can feel the car modulating as it brakes. As I pull up to a stop I have to ease up on the brakes so it doesn't pull up on the tight spot. There is no real pulsing through the brake pedal but I have had the steering checked for correct alignment and have swapped the wheels front to back with no difference. One mech says it's a warped disk, another reckons it's the slack in the steering box causing the shake. I lean towards the disk.

I can get a disk(s) of a wreck on Sat but they are rusted. Can I hit them with the wire brush to get the worst off then expect the pads to do the rest or will I have to get them machined? Need to have the car for next week as the boss has pulled my leave and I now have to work.

Thanks

Wardie

Ive had the same, it was narrowed down to a worn tie rod end.

[raps86]

yeah just get the discs machined if u feel it through the wheel its the fronts but when u lightly touch the brakes if u can feel it back through the wheels then its in the rears aswell. a normal maching should only cost around 25 2 35 a side

[Slim Mat]

WHo the ...... would say that it's slack in a steering box! If you have a half modern car(skyline I assume), then they have racks, different.

Highly likely that your front disks are warped. Get them machined or get these resty ones machined and fit those. We quite often just fit new ones, works out better, no chance of them still being warped and sometimes you can't machine anyway due to the disks being under minimum thickness so you have to get new ones.

[wardie]

Sorry Guys. I forgot to say its a '83 R30 Hatch. and it has a pretty slack steering box

The hassle with getting the disks machined this weekend is none of the places round here can do on car machining so I'll have to pull the hubs/disks off the car.

The reason for the post is I was hoping that I would be able to get through next week by cleaning and fitting the 2nd hand ones while I source new replacements or arrange to get mine machined if they are in tolerance (300K on them). The calls I made today leads me to believe that getting them done on Sat won't happen.

Wardie

[skybt1]

Ive got a set of new front discs that have been slotted. Only done about 15000km on them. No track work or hard braking.

I bought them for $240 you can have them for $150 posted.