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Brake disc need to machine or not

ken

By ken,
in General Maintenance

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ken Enthusiast

ken

Posted
Posted

I found this quote on bendix web site.

We recommend that rotors are machined only if they exhibit disc thickness variation (a shaking steering wheel and/or pulsating pedal on brake application), severe scoring, runout or heat checking.

I am going to change my rear brake pads soon. I am not sure if my disc need to machine or not?

How do I know if I need to machine the discs? Can I judge it by see it and touch? maybe shiny and smooth?

Thanks

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2BNVS Veteran

2BNVS

Posted
Posted

my discs started to go on me recently, but a very good friend of mine who tunes skylines and other high performance vehicles strongly suggested that i replaced them not machined them, the discs start to get really shinny and have like a glossy look on them, i replaced mine with slightly larger ones.

(B1) MR_fanny Grand Master

(B1) MR_fanny

Posted
Posted

i just changed all 4 pads today and had the disc machined also. the rears were very noticable as u could clearly see where the metal indicator was rubbin on the disc's......it was bumpy and uneven. i guess u can tell by lookin and rubbin ur fingers over it. the fronts werent as bad but i had em done anyways. i think they also help aviod that squeakin problem. its a cheap alternative but if u have the dosh change em like 2BNVS did.:D

benm Grand Master

benm

Posted
Posted

My old stock rotors were machined twice before i replaced them. Machining them is fine until their is nothing left to be machined. If you replaced your rotors instead of machining them you'd be up for rotors once a year.

  • 5 years later...
ray32 Collaborator

ray32

Posted
Posted (edited)

Sorry to bump an old thread, but didn't want to start a new one.

My brakes have been shittin' me for the past few weeks.

After braking at speeds of above 60ish the brakes will make a sort of creaking noise and the steering wheel will kind of shudder a little with a bit of noise.

Am I right in assuming I definitely need to get my rotors machined?

Edited by ray32
Vik Mentor

Vik

Posted
Posted

Same boat as me, when hitting high revs going at 70 or 80 and trying to break, they dont make a noise but they start to shudder really bad, Need to bet them machined.

Got other pair of rotors sitting at home, theyre bigger, and dunno if they will fit.

:D

MRXTCZ

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