Ok, my rotors do not show any grooves. I do not run my brake pads that low! Second, if I get my rotors turned do I need or should I replace my brake pads, too? Let me say this again, there is NO visible grooves on the rotors. The reasons I ask is because when I brake I can feel a pulsing sensation in my brake pedal and a shimmy in my steering wheel. I have also heard that replacing brake pads while getting my rotors turned is a good idea. Reason being is that even though there are no visible or physical traces of uneven wear, the fact that it's measured in micro meters will not show any physical or visible sides of said uneven wear.
PLEASE DO NOT ANSWER if it's an opinion. I prefer to hear from shop owners and/or mechanics that specialize in brakes/rotor.
2007-08-25 04:17:41 · 12 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Sorry to hear your having problems. Here's the honest scoop.
The more times rotors are turned the thinner they measure. There's less mass to dissipate heat away. Off-shore cheap cast iron brake rotors are metallurgical very poor. These low grade rotors can't be annealed properly. They tend to be vary thin when new. When if they ever "see" a brake lathe they warp quickly when put back in service. They are worthless no matter what the finish appears to be.
Please take our advice and spend your money on American British and Canadian brands such as Wagner, AC-Delco, Car Quest's best, NAPA's best or EBC. All these brands offer substantial thickness and higher quality cast iron. Sorry to say all Auto Zone rotors come from Taiwan.
I'd like to offer some advice on selecting new brake pads if needed. Toyota cars all have organic based brake pads. You'll never see a Toyota with the usual red / gray / brown brake dust in their aluminum wheels. Organic pads do the least or no damage to brake rotors. Companies such as EBC makes Green Stuff organic pads.
Next in-line are ceramic pads. They do dust-up slightly. Avoid semi-metallic or full metallic pads. They grind your rotors to death and are by far the filthiest.
2007-08-25 04:55:32 · answer #1 · answered by Country Boy 7 · 1⤊ 1⤋
We almost never turn rotors at my shop any more. New rotors for some cars cost as little as $12 each - it costs more to turn them then to replace them and every turn you take off of your old rotors reduces their usable life. If there is enough runout to cause a severe pulsation then you are really going to have to turn them down a lot to get them true again. There won't be much usable rotor left, if any.
Just get some new rotors and yes, it is ideal to replace the pads at the same time to ensure proper wear and good long reliable service although from a safety standpoint it may not be absolutely necessary. Brakes are the #2 piece of safety equipment on the car - don't go cheap.
ASE Certified Automotive Service Manager
2007-08-25 06:29:43 · answer #2 · answered by Naughtums 7 · 0⤊ 0⤋
This Site Might Help You.
RE:
Turning rotors...again!?!?
Ok, my rotors do not show any grooves. I do not run my brake pads that low! Second, if I get my rotors turned do I need or should I replace my brake pads, too? Let me say this again, there is NO visible grooves on the rotors. The reasons I ask is because when I brake I can feel a pulsing...
2015-08-10 14:31:02 · answer #3 · answered by Nicolai 1 · 0⤊ 0⤋
Some brake rotors are very thin . when you (turn) them you make them even thinner! Thus limiting there heat transfer capabilities. Buy NEW rotors and a good quality brake pad! Do what I say and your brake problems will be over!
2007-08-25 06:25:18 · answer #4 · answered by ed g 2 · 0⤊ 0⤋
Pulsing or shaking during braking is often loose joints in the suspension or steering gear and not always the brakes themselves. How are te shocks,they evn come into play hen trying to elminate a shaking during stopping. Check the rotors for warpage, that is why you turn rotors not grooves unless they are severe.
2007-08-25 04:31:22 · answer #5 · answered by Anonymous · 0⤊ 0⤋
Have the rotors machined, if they are still thick enough, and replace the pads. And demand that they use a torque wrench when tightening the lugs because if they use an air wrench they will overtighten the lugs and wrap the rotors again.
2007-08-25 04:44:54 · answer #6 · answered by Ron B 6 · 0⤊ 0⤋
its not necessary to replace pads, uneven pads will not warp rotors, if they are glazed they may cause less braking and increased heat, heat will warp rotors, pads are fairly cheap and new rotors aren't very expensive either, so if you want to do it the most cost effective way, just turn rotors, remember every time you turn rotors they get thinner and they won't handle heat as well
2007-08-25 04:29:22 · answer #7 · answered by Anonymous · 0⤊ 1⤋
rotors are warped, turning them is becoming a thing of the past,as they have become so inexpencive over the years,buy new, and yes new pads are always a good idea,also check for binding on caliper float pins,this can cause your rotors to warp,hope this helps.
2007-08-25 04:33:33 · answer #8 · answered by Anonymous · 0⤊ 0⤋
Yes its a good idea to replace the brakes when you have the rotors resurfaced,because even though the rotor maye seem "uniform". it may have worn the brakes out unevenly causing them to make noise.make sure when you have them resurfaced that the wheels are torqued on...or you will be doin it adain soon.
2007-08-25 04:33:34 · answer #9 · answered by smurfin66 2 · 0⤊ 0⤋
Get new rotors and quality brake pads, install them correctly incuding correct slider lube etc. Brake rotors sometimes warp and sometimes not.
2007-08-25 04:26:13 · answer #10 · answered by done wrenching 7 · 1⤊ 1⤋