Would you have your rotors cut?

[SLICKMAN]

If your rotors are fine, just a little polished and not worn, would you have them cut? Also, I had my driver side caliper leak and the rotor got brake fluid all over the surface that the pad contacts (I have new pads). Would you re-surface because of that?

These rotors only have 28,000 EASY miles on them.

 

[IH2LOSE]

I belive in cutting the rotors every brake job.More for trueing them then for sanything else.As for the brake fkuid you can easely clean that with the spray brake cleaner.USE CAUTION it highley flamable but is an excelent cleaning solvent.

Also just to let you know we are neighbors I live in rockland county ny just out side of harriman state park just over the bear mountain bridge

 

[rpounds]

In a word NO!!!!

Don't have them turned. If they are grooved badly and can be turned enough for minimum cleanup, then have them turned. Otherwise, leave them be. By turning, you are only shortening the life of the rotor. In my experience over the years, it is not necessary. I'm sure there will be some disenting opinions here and so be it. But in my opinion, turning is wasting your money.

Ron

 

[safety_match]

I find most brake shops will want to turn the rotors in order to make sure that they are true and not cause any problems later. but personally I won't turn them unless they need it. You can only get so many turns out of them and then they need expensive replacement. Even with very minor (note minor!) grooves I will just replace the pads. The pads will quickly wear to shape.
But please note, I mean minor. Any significant imperfections and I will turn them.

 

[Jack]

I agree with ron & safety match. Turn them only if they are not true or are badly grooved ... then do so only enough to correct. However, if they're neither warped nor grooved, I suggest taking an air die grinder & chuck up the small (about 2") scotchbrite pad in it ... lightly go over the rotor's swept areas ... it'll deglaze and impart a nice random finish much like the blanchard-ground finish that's on good, new rotors ... much more preferable than the "groovy" finish left after simply turning them.
JACK:gap

 

[phulst]

I wouldn't do it.

Because to the run-out and parallelism problems that can cause air pumping with Corvette (65-82) brakes, you should never do it unless you can find a shop that will do it with a machine on the car, and be able to turn them at a true 90 degrees to the centerline of the axle. There's a reason the rotors are riveted on there.

 

[SLICKMAN]

Well, it looks like I'm not going to get them cut.. They have minor wear and VERY minor groves.. I'll just get a scotch bright disk / pad to put on a drill and clean them up...

 

[offshore]

yes!

 

[DkBG]

Well, I disagree . I've seen it too many times to count . If you don't turn the rotors ( I don't always myself ) you may soon feel a pumping sensation in the pedal . It's probably safe enough but it makes your car feel like junk . I've left it go on work beaters but not on my good cars . Go ahead and hammer me on this guys . JMHO . Cliff

 

[SLICKMAN]

I like your choice in cars

http://corvetteactioncenter.net/sites/c1/dkbg/C-3Page.html

 

[mmvette80]

If your using the organic pads then one wouldnt need to cut them. I use the semi metalics and cut the rotors. I replace the rotors after they are cut 2x's. Once the rotor is cut too many times they thin out and warp. Then the car pulls to one side when stopping. And squeal. Just my opinion.

 

[phulst]

DkBG,

You're right, and I'd agree with you for 99% of the vehicles out there.

However, because the disc brake system used on the 65-82 is unique, it won't tolerate having them turned or cut like other cars would. Most brake places ruin the correct geometry of Corvette brakes by turning the rotors and ruinging the relationship between the spindle and the rotor. You then get air pumping and bad brakes.

In fact, the 65-82 Corvette is (just about) the only car that you shouldn't turn the rotors.

 

[SLICKMAN]

If you had the rotors cut on the assy and not remove them from the hub, that would be fine for cutting right? I would think that with the rotors not being removed from the hub would give you a good job if you had them done at a shop..:confused

 

[phulst]

Slickman,

Yes, that would work. The other key, if you would have that done, is to be SURE your bearings were in good condition before you did this. Otherwise the entire assembly will "wobble" enough to make it all a useless proposition.

 

[SLICKMAN]

Rotors look great!!

Well, I took the front calipers off and started getting it ready to install the new calipers and brake pads.. The rotors look close to like new so, there is no ridge or anything on them. I don’t have to do anything other than some cleanup with some 150 / 220 grit sand paper. Here is a PIC of the fronts I did today..

Rotor Close up of Rotor

 

[offshore]

If you buy brand new rotors you have to cut them before putting them on the car! whats te prob!!!

 

[SLICKMAN]

A C3 rotor replacement is not that straight forward when it comes to run out on the rotors. It can be a real PITA… if it’s not done correctly. So, if you do not need to fool with the originals (mine is all original, number matching) you leave it alone.

 

[offshore]

A C3 rotor replacement is not that straight forward when it comes to run out on the rotors. It can be a real PITA… if it’s not done correctly. So, if you do not need to fool with the originals (mine is all original, number matching) you leave it alone.

I was going to say something but never mind. have fun with your hightech carbon fiber rotors

 

[SLICKMAN]

Hightech carbon fiber rotors?? ..I think your posting in the wrong thread

I was going to say something but never mind. have fun with your hightech carbon fiber rotors

 

[phulst]

Your rotors look wonderful! I wouldn't touch them in a million years if they looked like this.

By the way, as long as you're in the neighborhood, check the front bearings, and don't be afraid to re-torque them to spec.