I live by the ocean so i am guessing that the salt in the air is contributing. the rust disappears after driving but is back within a couple of hours.
2007-08-09 14:57:20 · 7 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
ooooh.....chemistry challenge. Good question, I like it.
Not sure if salt can float in the air, but I get your point......moist.
Well, I can tell you what NOT to do. Do not spray WD-40(or any other spray-oil) on the rotors......this will contaminate the pads and make them grab harshly, shortening their life.
Keeping the car in a garage is one answer that is about 50% effective. (salt is still on car from road, moisture is reduced)
Having brake pads that are made with graphite impregnated friction lining MAY help. (Bendix brand or OEM brake pads) Not to mention they will last longer every time.
But fighting chemistry is very hard......not much else you can do unless you nitride the rotors.....which would be crazy-expensive. (nitriding metal......makes the surface very hard)
2007-08-09 15:14:57 · answer #1 · answered by vile_fly 4 · 0⤊ 1⤋
a little accumalation is expected when the rotors get in contact with moisture. The rust should be easily ground off by the brake pads, so no worries. But if your car is left for many months sitting and no driving, rust pits could occur. These will not go away after a few times braking especially if they are deep. The rotors then will have to be turned (material shaved away) by a professional or if they are past there minimum thickness then you should buy new rotors otherwise breaking ability will be limited. So any deposits from moisture within a short time frame is expected, don't worry.
2007-08-09 15:06:27 · answer #2 · answered by Corey the Cosmonaut 6 · 0⤊ 0⤋
The best brake rotors are stainless steel but this is a costly improvement and may not be available on your model car.
High humidity and salt laden sea air and, for us Yankees, the road salt and snow adds to this "problem". As you mentioned, driving the car or using the brakes makes it go away but it comes back overnight or if you leave it parked for several days.
It's not a big problem but can slightly increase stopping distances if the rust is heavy and if the rotors become pitted which is more common from the heavy road salt used in the Winter months up north.
You might just have to ignore it but ask about it when you have your brake inspections every year or two.
Good Luck!
2007-08-09 15:18:43 · answer #3 · answered by CactiJoe 7 · 0⤊ 1⤋
there is nothing to prevent this..
driving the car more often will reduce the build up..
rust forms on rotors no matter where you live as long as there is moisture in the air... if you drive everyday you should not hear any noise from it...
if your car sits a while you may hear squeking or scrapping for a few miles..
its normal and wont hurt the brakes..
Paul
2007-08-09 15:08:16 · answer #4 · answered by Anonymous · 0⤊ 0⤋
you cant really stop this from happening to it,the salt air and water will add to the problem,but it always will clean it back off once its being used,this is one of the things you have to contend with ,when living that close to the ocean,good luck.
2007-08-09 15:08:33 · answer #5 · answered by dodge man 7 · 0⤊ 0⤋
it's normal it is from moisture in the air in general. They can't coat the rotors with anything because i would affect braking
2007-08-09 15:13:27 · answer #6 · answered by Chris 2 · 0⤊ 0⤋
Soak your brake pads in oil, that should keep them from rusting.
2007-08-09 15:16:29 · answer #7 · answered by u_r_brain_daed 4 · 0⤊ 3⤋