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No just put them on. If they were bad they could be sued for a defective product.

Actually Honda/Acura specify that NEW rotors be "refinished" with an on-car brake lathe...

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2010-06-12 14:23:40
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Can slotted or drilled rotors be machined in a brake lathe

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Q: Do new rotors need to be machined before use?
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Related questions

Bouncing or a wobble in your front end and when braking?

Probably warped brake rotors. They can be taken off and machined true or just replace with new rotors.


Are rotors ready to install when you buy them?

I have found that new rotors are in need of turnig even though they are NEW. They tend to have not been machined with tight tolerances because they are mass produced. You may not feel anything in the break pedal but, if you do you have to take them off and do all that work AGAIN.


Your f 150 vibrates when applying the breaks?

Disks out of round, worn or warped will cause the brakes to vibrate. You need to have the rotors ispected and machined,if there is enough thickness let on them. If this does not fix the problem, you need to install new rotrs.


Can you change brake pads with worn rotors?

If your rotors are worn you should replace those as well. Worn, warped, or glazed rotors will reduce the effectiveness of your brake pads and possible wear them down faster. As far as the possibility of doing so, sure but it's not recommended. Just to add a comment, depending on the rotor thickness, the rotor surface should be machined to remove the glaze or warpage before installing new pads. Machining of a rotor surface reduces the thickness. If a rotor surface has previously been machined the rotor may need to be replaced.


How many miles before you should change your rotors?

As long as your rotors are not warped, or you have not let the brake pads wear to the point they defaced the rotors, there is no need to change them. Just install new brake pads. Rotors can last the life of the car.


How much do new brakes cost for Hyundai elantra?

Many dealers charge any where from $210 - $350. It all depends on the rotors, if they can be machined then it will be toward the lower end.


Do new rotors need turning?

No, unless they are rusted.


Why does Acura Legend shake when braking?

More than likely you have warped rotors. Have the rotors and brakes inspected. If the rotors are not too bad and have not been turned before they can be turned and trued and used again. You will also need new brake pads.


Why would the steering wheel of your Toyota Corolla vibrate when you press the brake pedal?

One of the two brake rotors on the front is warped. You can either buy new ones or get them machined if they aren't very old. sounds like one of your rotors is warped.


Do new rotors need to be cleaned?

Typically rotors come from the factory covered with a waxy material to prevent rust. Yes, it's a good idea to remove that material before using the brakes.


How does your car react if you need rotors?

There was a lot of squeaking while braking when my car needed new rotors.


Does a warped rotor need replaced asap?

No you do not have to get new rotors just have them resurfaced. If they are to much warpage then you may need new ones. I would try getting them resurfaced before you replace them.

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