I just did the front brakes on my car this weekend, and I noticed that the allowable rotor wear was only 2mm. I think resurfacing them after a normal amount of wear would probably take them over the limit. I tend to just replace them every other pad change -- they're not that expensive, considering how important they are. You forgot about burnishing the rotors, then bedding the brake pads. This is very important if you want to get the best performance out of your braking system.
While it may be "completely safe", it is not optimal. I agree Paulster, burnishing is a good idea and helps the pads bed faster, although with rotors that show little-to-no signs of wear, it's hard to tell the difference between burnished and unburnished.
But that would be like saying that when your car has 50, miles, you have to replace it with a new one. A lot of people think that way my wife being one. The only reason I suggest replacing them every time is the extra cost is minimal when compared to what it costs get them turned, then the extra time it takes to make it happen taking them somewhere and waiting on them to do the job.
People have to figure out what their time is worth. Personally, my two to three hours saved is worth the few extra dollars the new rotors will cost. I guess if you have a rotor lathe at home, doing it yourself would be a good option. Before you said not to forget burnishing the rotors and bedding the pads. Now you're saying you need to replace the rotors every time, otherwise you have to get them turned every time. However when there is no visible wear you don't need to do either.
If there is significant scoring making turning necessary in my experience there is never enough rotor left to have them turned. So I would agree with you if there is visible wear to replace the rotors, if not then just replace the pads. That saves the most time and money. That's not what I said. I was commenting on your lack of wanting to change out the rotors. My preference is to change out the rotors every time.
You don't absolutely have to change them out. It is your preference not to change out, burnish, or resurface the rotors. This wouldn't be my first choice. You can do it the way you suggest if you want a half-baked job. Personally, I like to be able to stop in the best distance possible. Not having a fresh surface on the rotor limits their effectiveness. It's hard to bed the new pads without one. Show 2 more comments. Captain Kenpachi Captain Kenpachi 8, 3 3 gold badges 23 23 silver badges 42 42 bronze badges.
I've seen rotor worse than this, Juann! It's pretty fantastic when people have their rotors worn down to the veins with no surface apparent whatsoever. Great stuff! The pads went metal to metal onto the ribs, ejected one pad, and then destroyed the piston. Then I came to a dead stop eventually. Bryan Evans Bryan Evans 71 1 1 silver badge 1 1 bronze badge. Rotors also rust on California cars. It's the heat. There's no need to machine off rust on non-working surfaces of a rotor.
You're just doing that because the rust is in the way of the cutter head. Grooves in the rotors means you need to grind it flush or replace it. Just watch out for deep grooves and minimum thickness. During your brake check, we'll determine if your vehicle needs any further brake service or repair and if so, talk to you about next steps.
Blog Categories Blog Home. Why is my steering wheel vibrating? When that warping happens: Applying the brakes activates the brake pads. The brake pads make contact with the warped rotors.
Your steering wheel vibrates — the sensation is also described as shuddering or pulsing — because the pads are following the contours of the warped rotors. If your steering wheel is giving you vigorous handshakes, a rotor replacement may be in order. Where is that screeching noise coming from? Your rotors should be replaced between 50, and 70, miles to keep your brakes in peak health. Some signs to be aware of are:. You may be wondering why you even need to replace your brake pads and rotors.
If one part starts to get worn, then it can cause issues elsewhere. For example, if your car is having trouble braking or is pulling to the side when you brake, then replacing your brake pads and rotors can eliminate these issues. Open Today! Sales: 9am-6pm.
Service: am-6pm. Parts: am-6pm. Brake rotors are extremely influential on driving safety, which is why they need to be replaced with new ones as soon as they are found to have been damaged. Brake rotors must be selected in accordance with the car manufacturer's instructions, and it is best to choose branded products, ideally cross-drilled and vented styles, manufactured from good materials and to high quality standards.
Researching known issues with your make and model of car may offer insight into better-than-OEM solutions, as well, as some aftermarket manufacturers have identified rotor weight and engineering weaknesses and addressed these in their product offerings. You know better than anyone what safe braking feels like in your own vehicle. Some of the damage a rotor can suffer will cause an immediate change in braking abilities, and that change requires prompt and urgent attention.
Because brake rotor wear and tear can be gradual over time, however, it's equally important to check them at every service and note their thickness, corrosion level, and surface condition.
Additionally, if you've made any upgrades to your car or truck that affect the wheels or the overall weight of the vehicle, the way the vehicle is being used, or added towing or increased payload, it's time to change the brake system components to match.
Replacing your brake pads and rotors with new, high performance products is the best way to guarantee your safety as you head out on the road! CLOSE 0. Hawk Performance. Factors that contribute to rotor wear and tear include, but are not limited to: Quality standards: The materials and quality control standards implemented by the manufacturer during the brake rotor construction, treating, and distribution processes.
Physical characteristics of the brake rotors: Solid, drilled, slotted, or vented affects heat dissipation capacities differently. Quality of the brake pads: Interacting with cheap, hard pads or pads not properly installed will cause damage. Driving style and environment: City, mountain, or aggressive driving, and extreme environments think desert heat or frigid winter cold all cause quicker wear rates for rotors. Car weight: The heavier the car or the more upgrades or modifications added to a vehicle, the more quickly rotors and pads wear down.
Axle position: The front axle usually bears more weight than the rear, as well as typically forward bias proportioning. How Do Brake Rotors Operate?
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