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Eradispeed and hawk pads ...shake

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Old Mar 16, 2009 | 08:18 PM
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Default Eradispeed and hawk pads ...shake

Hi,

I just had install new Eradispeed rotors and Hawk carbon pads on my vert.

And it shakes a lot when I use the brakes.

Does it need a period of adjusment ??

Thank you all

Sylvain
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Old Mar 16, 2009 | 08:18 PM
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Are the wheels on tight?
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Old Mar 16, 2009 | 08:19 PM
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Hi

Yes they are
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Old Mar 16, 2009 | 08:24 PM
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sounds like there is a rotor either not seated or warped!!!
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Old Mar 16, 2009 | 08:25 PM
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How about the caliper mounting bolts? I would also check the rollout on the rotors in case they were dropped in transit.

Where do you live?
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Old Mar 16, 2009 | 08:27 PM
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the caliper mounting bolts would not cause the pedal to shake, the warped rotor or something not allowing it to seat on the hub
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Old Mar 16, 2009 | 08:28 PM
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I'm in Montreal.

My mechanic told me
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Old Mar 16, 2009 | 08:30 PM
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My mechanic told me it's because of the carbon pads they need to be driven for about 200 miles .
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Old Mar 16, 2009 | 08:37 PM
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think about this, if the rotor is running true the pads are almost touching, when you apply
the brakes, there is no reason for the pedal to shake, but is the rotor is not running true
it will move the piston in the caliper back and forth, thus causing the shake!!
the brake compound will not cause the brake pedal to pulsate up and down.
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Old Mar 16, 2009 | 08:38 PM
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Originally Posted by pmj341
the caliper mounting bolts would not cause the pedal to shake, the warped rotor or something not allowing it to seat on the hub
Your right, but ya never know!

Originally Posted by Sylvain
My mechanic told me it's because of the carbon pads they need to be driven for about 200 miles .
OK, lets us know how it works out, because I am skeptic. I am a battery salesman, not a mechanic, but.....
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Old Mar 16, 2009 | 09:14 PM
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you never know!!!
if it was mine I would take the tires off and mount a dial indicator on the A frame and check the rotor!!!!!!!!!!!
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Old Mar 16, 2009 | 09:22 PM
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Originally Posted by pmj341
you never know!!!
if it was mine I would take the tires off and mount a dial indicator on the A frame and check the rotor!!!!!!!!!!!
Somethings not right.
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Old Mar 16, 2009 | 09:52 PM
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does it shake with very gentle smooth pedal pressure or just when you get on the brakes normal to hard?
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Old Mar 16, 2009 | 10:16 PM
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it shakes when I press hard at speed higher than 55MPH lower speed and gentle it's almost perfect
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Old Mar 16, 2009 | 10:39 PM
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your brake installer should be able to check if the rotors are true, the pads are properly seating and the calipers are on correctly and tight.

there is such a thing as hot spots and material transfer that leaves material on the rotor. your installer can lightly scratch the surface of the rotor(s) and eliminate those spots.

but then, this is the person who's saying it requires a 200 mile break in which I don't get at all.

my only suggestion is go to the baer or stoptech sites and see how to break in the pads and rotors. try that. if that fails, maybe you need a new brake installer person.
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Old Mar 17, 2009 | 12:59 AM
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Originally Posted by Sylvain
it shakes when I press hard at speed higher than 55MPH lower speed and gentle it's almost perfect

I have the Eradispeeds as well and they do the EXACT same thing. I have also read about another person on this forum who had them and had the same problem. I assume they are warped but have no idea. I really wish I would have never bought them. Mine have GM ceramic pads by the way, so I'd be willing to bet its the rotors,

They have a lifetime warranty against warping, but I can't tell which one or ones are warped. Guess I'll have to take them to "brake check" or someplace like that to have them all checked. What a pain in the ***. I shouldn't have to go through this with $1000.00 + rotors. They were installed properly and every bolt was tightened to exact torques. All the holes also have stress cracks and these rotors have NEVER seen a track.
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Old Mar 17, 2009 | 09:43 AM
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I installed the Eradispeed Plus 2 last year. If you do the install yourself there are instructions on how to properly break in the rotors. If you had someone else install them did they instruct you on the correct way to break them in. It's kind of impossible to do what they say unless you live in the middle of nowhere or have access to a track but I attemped to break them in correctly.

Last edited by SvetteC6; Mar 17, 2009 at 11:32 AM.
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Old Mar 17, 2009 | 01:33 PM
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thank you all for replies they have been very usefull
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Old Mar 17, 2009 | 01:38 PM
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DBA 4000 series, slotted, smooth as glass, stop on a dime!
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Old Mar 17, 2009 | 03:07 PM
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Originally Posted by CMY SIX
DBA 4000 series, slotted, smooth as glass, stop on a dime!
Where'd you find the best price on the DBA's?

Vette don't need rotors yet, but I've had ErSpds on other cars, never very happy w/ them. The cost savings from R&R'ing the rings once the drilled rings cracked & warped wasn't worth it & after the huge PITA it was changing just rings, MUCH more labor intensive, it would still shake.
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