Do new rotors need to be cut?

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Old May 14, 2007 | 12:34 AM
  #1  
ChrisQ1980's Avatar
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hates the winter
 
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Do new rotors need to be cut?

Within the next few weeks I will be replacing my brakes at all 4 corners. It's almost time and I don't want to cut my OEM rotors. For the reasons listed below.

-Old
-rusty
-they suck

My question is, when I get the new rotors. Most likely Rotora, or Brembo blanks to be used with OEM pads will I have to have them cut? Or do I just throw em on and call it a day? Thanks in advance
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Old May 14, 2007 | 12:41 AM
  #2  
orgnlprankster7's Avatar
08 Civic SI
 
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From: NJ
do you mean turn them down? you only do that if they are warped so you defnitly wouldnt want to do that to new ones lol.
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Old May 14, 2007 | 12:52 AM
  #3  
nevTL's Avatar
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Just bed the brakes properly according to the manufacturors directions.
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Old May 14, 2007 | 01:13 AM
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01tl4tl's Avatar
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You just need to follow the rotor and pad makers instructions
Usually that means 200 miles of easy drive no panic stops
then some slightly more aggressive "bedding" of the pads
with repeated use from 35-20 mph and then a cool down drive.
Hawk HPS pads really upgrade the stock system
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Old May 14, 2007 | 08:46 AM
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6MTUA5's Avatar
No He Can't
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From: Florida
"cutting" the rotors is when they are old and warped and you cut them down to get a flat surface on them again. if you are putting on brand new rotors, there's no need to cut them because they should be flat already
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Old May 14, 2007 | 03:51 PM
  #6  
ChrisQ1980's Avatar
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hates the winter
 
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Ok, thanks guys. I'll play nice for 200 miles, and bed them in properly.
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Old May 14, 2007 | 07:35 PM
  #7  
FirePR2002's Avatar
bringin lead
 
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From: Georgia
You will need to clean them well with a brake cleaner as most new rotors come with an oily coating to combat rust during shipping and on the shelf. I just installed a set this weekend and all you have to do is spray them down well with brake cleaner and wipe off the residue with a clean cloth, then put on the car.
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Old May 14, 2007 | 08:48 PM
  #8  
01tl4tl's Avatar
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Application of quality brake caliper grease on all contact/moving surface
will reduce noise and increase function and life of your brakes.
Keep the fluid fresh too- replace all brake fluid annually by flush thru the system and out the caliper bleed nipples.
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Old May 15, 2007 | 03:09 AM
  #9  
SodaLuvr's Avatar
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From: Walnut Creek, CA
Wipe 'em off with brake cleaner first to remove the oils. Then wash with soap and water and dry with a paper towel.

NEVER machine new rotors. If they aren't suitable for installation right out of the box, they should be returned.
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Old May 15, 2007 | 11:47 AM
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Excelerate's Avatar
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From: www.ExceleratePerformance.com
Only use brake cleaner if grease or lubricant is on the face of the disc and make sure the brake cleaner only touches the face of the disc. If you rub it elsewhere you will strip off the coatings on the hubs of most aftermarket rotors.
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