Rep Power: 318

I was out doing some work on my suspension when I noticed this on my passenger side rotor. What gives?





about a month after I installed them I began to have a grinding feel to my brake pedal when i braking at low speeds (5-15mph), almost sounded like gurgling water coming from the wheel area. here it is, 8 months later, and the noise has practically gone away. so I'm wondering, did I have a warped rotor that kind of fixed itself, or have my brake pads formed to the shape of my messed-up rotor, or what. I have some Hawk pads waiting to be installed, but I don't want to put them on if it's just gonna mess up the pads. I'm thinking if I put them on and still hear the noise, I'll just go back to my stock rotors.

should I be worried about that crack?

 
Rep Power: 0

I would change the rotor before putting new pads. It's not worth the risk of ruining your new pads. You should really change that rotor ASAP. What if it gets worse??

 
Rep Power: 453

are those rotors from ebay?

 
Rep Power: 318

got in on a ProStop GB long ago with Dezod. They're great rotors, I think I just may have broke them in wrong.

 
Rep Power: 424

Its a crack for sure. Look closer, see if it starts at the drill hole, I wouldn't be surprised.... thats why you don't use drilled rotors. Properly made "crossdrilled" rotors have the holes cast in, even then, they're not ideal.
Honestly, ditch them for blanks, and beat the hell out of them all you want. Its probably from overheating them.

 
Rep Power: 318

they're dimpled though, not drilled

 
Rep Power: 0

those cross-drilled / slotted rotors suck.. many people use brembo blanks and do in-house machining then sell them, they are not safe trust me!! I used to have them and I learned a lesson because mine warped really bad and when I stopped it was terrible!!! Now I have regular Brembo blanks with the Axxis ultimate pads. I got that setup for about $100 bucks and installed it myself. Now, I couldn't be happier, unless I had rear disc too! Always use new pads with new rotors, thats what it said on the Brembo box....

 
Rep Power: 0

Damn that sucks. Those rotors cost a pretty penny too. And yeah, those aren't cross drilled, they're dimpled like he said. I think the dimple is just for the cross drill look...haha. Sorry that happened to you man. You must be a hard driver...hehe.

 
Rep Power: 0

I have these rotors on my Civic for well over 10,000 miles and have no cracks what so ever. Not to mention, almost 3000 miles with turbo now.

 
Rep Power: 412

I personally don't think it is a huge deal. the crack doesn't seem to come from the dimple. I would keep an eye on it though. But if you really wanted to play it safe, then get a set of blanks.

 
Rep Power: 309

It's probably too late (8 months) to see if the Vendor will replace it. But I would listen to the above post and change it out. It will probably never happen but, If the crack were to suddenly fall apart, you could really mess up the rotor pads, maybe other stuff. In real life, there are vibrations inside that crack that are transfering to the Pads, and wearing that pad down faster than the brake pad on the other side. Not a real big deal, but I definatly wouldn't put a new set of pads on.