So everytime I brake I get a lot of vibration in the pedal, im guessing its “warped rotors”. what is the general consensus on cutting rotors to stop the vibration (good idea/bad idea) and what places do that?
I think Nappa will for like $10 per rotor. Isn’t a bad idea I’ve done it plenty of times.
Its fine as long as you still have enough material on the rotor after you cut them.
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I’m assuming this is the same thing as resurfacing? I’ve seen some places charge $15-$25 to resurface each rotor, which I guess depending on the car may be worth it. If parts are cheap enough though I’ve seen some rotors around $40 a piece, so I guess it would make sense to just buy new in that case.
Would cutting really help with warped rotors? I mean glazed shitty rotors I thought need to be cut.
Cutting them can get rid of the “warp” … sometimes they have to take a lot off to get them straight though. As stated above, manufacturers have specifications that say what the minimum thickness for the rotor should be. If you have to cut it so far that the thickness goes down below that threshold, then you can’t do it. I was getting the pulsating pedal on my Mazda before throwing brake pads on a few months ago. Cut the rotors and put new pads on and it felt good as new.
I generally try to cut the rotors any time I do brake pads.
From back when this site was about cars…
yep, which is why I wrote the word warp in quotes lol.
Cutting them will most likely get rid of the pulsating since they probably aren’t warped and just have uneven deposits.
As for doing it or not, I look at the cost of new vs the cost of having them turned. The front rotors on my GTO are $124 each for basic Napa blanks. Those I’d try and get those turned at least once before replacing them. The ones for my wife’s old Prizm were $32 each. Getting those turned was stupid.
Cutting the rotors will get them “straight” agian, but if it is metal inconsistency causing the pulsations, it will be back in a week or two.
same reason i did it too
last i looked for rotors for my WRX the cheap ones at autozone were $35/rotor then they went up to $115/rotor. buying the cheap ones for a WRX probably wouldnt be a good idea
I would just cut/turn them. It’s always worked well for me. Even if it’s only a $20-30 savings.
Dumbass question, do drilled/slotted rotors make a difference here?
Or is the brake pad all at fault?
and is there a difference between what type of brake pad you use?
I got this on my daily approx 15k after new rotor/pads.
It hasn’t got better/worse since then, and it’s been prob about 45k since the change with plenty of life left.
edit;
Ya think some morons drill/slot their own rotors?
Using a drill and maybe a cut off wheel on a grinder or such?
Maybe I should go suggest that as a cheap cool mod…
I am not sure if this is a real question or not…
when I worked at goodyear we would not turn drilled or slotted rotors. It is hard on the lathe to keep being slammed into the material thousands of times per rotor. Some places still do it.
I’ve done a ton myself, if you do real light cuts, it’s not that violent. If you take flat rate cuts, you’ll tear shit up.