Page 1 of 1

Disk rotor machining

Posted: Thu Jan 19, 2012 12:08 pm
by yem11n
Hi,

Can I get some input on machining the disk rotors?

Is it necessary to machine everytime the pads are replaced?
Or this should only be done if the surface of the rotors are uneven?

Also, are rotors on mxs can be machined?

cheers

yem11n

Re: Disk rotor machining

Posted: Thu Jan 19, 2012 12:21 pm
by NitroDann
MX5s can be machined, only if there is a significant lip on the disk edge, or they are not straight.

Dann

Re: Disk rotor machining

Posted: Thu Jan 19, 2012 1:12 pm
by Steampunk
...and it's not below minimum thickness.

Re: Disk rotor machining

Posted: Thu Jan 19, 2012 1:33 pm
by Guran
I've had a set of NA6 rotors machined after they developed a bit of a shudder. Cost was $50 for the front set from my local brake specialist. It's not necessary to machine them with each pad change. I've been getting a few pad changes without touching the rotors. If you get them machined, tou need to check their thickness with a micrometer and make sure they're not below the minimum thickness. A new set of front rotors should only cost around $100.

Re: Disk rotor machining

Posted: Thu Jan 19, 2012 2:22 pm
by yem11n
thanks for the info fellas.. :wink:

yem11n

Re: Disk rotor machining

Posted: Thu Jan 19, 2012 4:33 pm
by Dweezle
If your in Sydney, brookers brakes do RDA rotors for under $30 each last time i got a set.
Much better than machining.

Re: Disk rotor machining

Posted: Thu Jan 19, 2012 4:42 pm
by Guran
Dweezle wrote:If your in Sydney, brookers brakes do RDA rotors for under $30 each last time i got a set.
Much better than machining.

Holy cow! That's cheap! I got my DBAs from Supercheap for $100 a set (front pair).

Re: Disk rotor machining

Posted: Thu Jan 19, 2012 6:41 pm
by Hellmun
You can get DBA street front rotors for $60 odd from n*power and probably other places (check forum sponors?)... machining isn't much less than that. If your changing pad type it can sometimes be highly recommended to machine/replace rotors. E.g changing between a metallic, asbestos or ceramic type. EBC's pads actually come with an abrasive cleaning surface on their pads to improve bed-in.