Turning new rotors?!

[MaDD_Drizzle]

I tried looking around with the search button and only found one topic that was related to my question...unfortunately that other topic was asking wheather or not to turn the rotors if u get new pads on the old rotors.

My question is should i be turning the rotors when i get brand new rotors and brake pads???

[180fan]

you should turn them when you get new pads on.

[MaDD_Drizzle]

even if they are brand new?.....im more concerned about having to do it because i have brand new rotors.

[180fan]

if they're new, bleh screw it.

[Jott5555]

No you dont need to turn them on a new rotor.. but make sure to clean it very well with some brake cleaner and wipe it down wiht a clean cloth... they put anti rust crap on it from the factory that can mess up some pads

[MaDD_Drizzle]

thanks...i did actually clean em up very thouroughly and they feel good...except they tend to have a lil lighter feel to them when i brake...as in they are not as sensitive on the pedal as b4...anyone know why?

[pdqwrx]

If the rotors had a antirust coating (Like cadnium or zink) can fill up the pores in the pads and decrease brake feel. This will usually go away with some heated braking. You also need to "Bed the pads" properly to give them good bite. From there check your bleeding, you could have sucked in some air somewhere and now need to bleed the system.

I have always been tought to take a DA sander or similar and remove all the coating from the rotor surface that will be in touch with the pads. That way it won't screw the pads up. Some shops recomend turning them for that same reason and to make sure they are true.

Good LuckScott

[ricebike]

ya, u may haveta "bed" the pads... so the linings are mated to the new rotorz

ha, u beat me 2 it

[positron1]

I put new rotors and pads on the front about a year ago so when I decide to change the pads I will have to turn the rotors correct?

[rogoman]

I put new rotors and pads on the front about a year ago so when I decide to change the pads I will have to turn the rotors correct?

That's correct.

[Defiant]

The people who make money running brake lathes in brake shops tell you the discs need turning. I never do, including on beaters run until the metal backing carved the disc up to resemble the other side of the moon. It was research- I figured that side would grab and lock and pitch for the ditch at first prod of the pedal- it didn't. It didn't eat up the pad. I was amazed. I drove it the rest of the years I had it -a 610 wagon- with no apparent effect. So no, I don't turn discs. I hit them with some 80-grit and cross-hatch them, and then do some moderate bedding of the pads.If there's brake pulsing, turning seldom cures it completely. You're usually heading for replacing the discs, and it's about as economical to go straight to that solution.

Only my experiences, of course do what you like. Just take a breath when someone tells you "absolutes" about cars. Few of them are.

[ricebike]

defiant, i have similar expierences like yours, cause i know i don't beat on my DD... to warp the rotors...

& if the surface isn't that screwed up & runout specs are in tolerances, i do what you did w/ sandpaper & using a cirucular motion over them, blast w/ brakeclean, reinstall, bed new pads, off i go for another few years

[silkysmoothyjud]

Everyone has different standards. You should clean rotors when you get em, but dont mess with em unless you feel a vibration when braking, then just turn/replace the front ones. Unless your p-diddy or something with a bunch of war bucks sitting around for platinum rotors that need turning every 10k ( it seems the expensive stuff needs more attention some times.)

[positron1]

I was checking some old threads on rotors and on one of them there was a statement that drilled/slotted rotors are one time users and that you don't resurface them and a lot of people chimed in and said this was true. Can anybody set us straight on this?

[180fan]

you can still get em resurfaced to get an even surface on them if your pads wore on the surface a bit differently.

[DrunkDRIVER]

.. u can turn slotted rotors... but u can't (not soppose t00) turn drilled...