I had a local service center tell me that the rotors on the G35 cannot be resurfaced because 'the metal is too soft' and, as a result, they will re-warp shortly after resurfacing. He didn't say anything about a problem with minimum thickness -- just that the metal was too soft.

Just wondering what the experience has been with having rotors resurfaced ...

Thanks!

 

Did they actually checked the hardness of the rotor? If yes asked them what they've got in Rockwell? It would be interesting to see what they say.

tg

 

I had a rotor issue on my 07.... warping.
I called the dealer and they had me bring it in and they did turn them (for free). I explained that I was unhappy with their solution, as turning a warped rotor is only a band-aid and not a solution, so they offered to replace them free of charge if they warp again.
It's been about 6K and they're just now starting to feel a little out of whack again.
The OEM rotors on the 07x suck, but they are turnable.

 

do you guys know why a rotor warps ?

 

I know what you are thinking, but this is not driver related.


Brake rotors warp because the temper in one area of the rotor is different then the rest of the rotor. When subjected to thermal stress (or mechanical stress from unevenly or over-tightened lug nuts) the rotor warps. Turning or truing the rotor will alleviate warps that exist when the rotor is cold, but will not solve the problem when hot, the uneven temper still exists within the substrate. The only permanent solution is to replace the rotor.

The manufacturing cost of brake rotors is mainly related to the length of the cool down time during the casting process. Cheap rotors are removed from the sand molds too soon and generally develop uneven temper. Expensive rotors are left overnight to cool in the molds, allowing them to temper very evenly. This extra time in the molds eats up the foundry's production capacity, so the parts are more expensive.


I feel that the rotors on the X are, for lack of a better word, lousy.

 

im not talking about the technical part of why a rotor warps (though all of what you said is spot on,, ex the over-tightened lug nuts, im the one that's stands on my tire iron..).

im talking about the driving habits,
i can go out and warp rotors in about 3-5 minutes in any car, i have done it before to prove my point.

i have seen it many times, the same people over and over with warp rotors, its how they use the brakes.

my point being that its not always the rotors fault, if one finds them self warping rotors a lot.

 

just to clarify, i don't think this situation is driver related.

 

Thanks... cause I try not to use my brakes.

 

I've been wondering since I bought my 2008 G35X Sport has anyone tried to retrofit the 2007/2008 6spd MT brakes onto the G35X Sport. I mean, the sport package brings you the 18" rims.... Anyone? I know it isn't just changing the rotors. It also requires changing at least 1, if not both set of brake calipers...

 

i just got mine redone and used hawk pads and they barely stop the car

 

I had about 34,000km or so when ALL my rotors had to be resurfaced.. apparently... :S

It was freakin expensive. Along with replacing my rear breakpad and some small service, it came to 900 bucks!!! :S

 

i haven't had any problems with my 6mt brakes, but if ur going to spend $ on upgrading the binders & rotors, why not go all the way with a bbk.

 

Umm, I had my front brake pads replaced without resurfacing the rotors about 1k ago and no problems. I have 23k on the G now, feels just fine. I assumed resurfacing wasn't a requirement...should I look for problems down the road?

 

you will know it if ur rotors warp, ull feel it in your foot.