Brake Pedal Pulsing When Pressed - Hyundai Performance Forums

Visionz · 10-05-2005, 07:54 PM

Ok...I was just wondering what causes the brake pedal to pulse and the steering wheel to shake when you apply the brake pedal? I just changed my rotors not too long ago to slotted and cross drilled, but I never got around to actually changing the pads. The pads were about 7-8 months old. I was planning on changing them over to Hawk's or EBC's in the near future. But does having old pads with new slotted and drilled rotors cause that pulsing and shaking? Just figured I would ask to make sure.

Thanks.

**i8acobra** · 10-05-2005, 09:11 PM

Sounds like you either got a warped rotor, or you warped it.

bizzare · 10-05-2005, 10:24 PM

yup, you warped the rotors witht he old pads...

beppomarx · 10-05-2005, 10:30 PM

i shoulda told you that when you called. i had no idea you were replacing the rotors without the pads....

Visionz · 10-05-2005, 11:33 PM

FOCK! :??:

Well, guess its time for 2 new rotors then, plus some new pads. :sleepy:

beppomarx · 10-05-2005, 11:38 PM

just get some new pads and turn the rotors. they will probably only have to skim the surface, after what 3 weeks of driving on them they cant be THAT bad...

**i8acobra** · 10-06-2005, 12:09 AM

Most places won't urn slotted rotors. It f*cks up the lathe.

beppomarx · 10-06-2005, 12:19 AM

well shat i had no idea!!!!!

josh if youre just gonna throw them out ill pay shipping to take them if you like. maybe even pick them up.

DREROB · 10-06-2005, 01:46 AM

Quote:

Originally posted by i8acobra
[body]
Most places won't urn slotted rotors. It f*cks up the lathe.
[/body]

Not true. I work on Accu-turn products for a living and there brake lathes cut with a positive rake. Find a shop that has an Accu lathe and you wont have a problem turning them. As far as the other lathe brands, they are all negitive rake so they scrape the rotor instead of cutting the rotor which in turn requires more pressure to be applied.

[Edited by DREROB on Oct 5, 2005 9:50 PM]

**i8acobra** · 10-06-2005, 01:01 PM

Quote:

Originally posted by DREROB
[body]

Not true. I work on Accu-turn products for a living and there brake lathes cut with a positive rake. Find a shop that has an Accu lathe and you wont have a problem turning them. As far as the other lathe brands, they are all negitive rake so they scrape the rotor instead of cutting the rotor which in turn requires more pressure to be applied.

[/body]

That's why I said "most".