Is it ok just to hit it with some sandpaper to cut the glazing....
2006-09-01 07:17:37 · 18 answers · asked by Anonymous in Cars & Transportation ➔ Maintenance & Repairs
Reserve the decision to replace/resurface rotors until they are properly inspected. A proper inspection includes, viewing whether or not the friction surface on the rotor is scored or has heat checks (blue glazing), will determine if it's thickenss is still within recommendations and will still be if lathed, and will determine if the radial runout is true (not warped) or will be after lathing.
If the rotors pass these inspections, it should be ok to proceed without further concern. If they don't, replacing or resurfacing will save you a whole lot of discomfort and future cost and aggravation.
On a side, sanding the rotors is of no consequence. Within a week or 2 the rotors will be as smooth as they were before you sanded.
2006-09-01 07:44:37 · answer #1 · answered by ½«gumwrapper 5 · 0⤊ 0⤋
The brake guy will take a measuring instrument (A caliper?) and literally measure the thickness of your rotors. Then he will check a factory manual for the minimum thickness your rotors should be. If they are too thin, based on the measurment and the manual, they must be replaced.
If they are thick enough to remain on the car, they will be resurfaced with a lathe, but old schoolers sometimes just rough them up with sandpaper to avoid taking any thickness off of them.
2006-09-01 07:23:57 · answer #2 · answered by Shyguy 3 · 1⤊ 0⤋
If you do not turn(resurface)/replace the rotors with new pads, you can get very bad brake wear and squeaking from the brakes. With new/turned rotors there is a new clean surface for the new pads. So in effect yes you need to do this. Hope this helps.
2006-09-01 07:20:34 · answer #3 · answered by BC 1 · 1⤊ 1⤋
This question is why I usually NEVER go somewhere like Midas etc. IMHO these shops never resurface rotors right. If U go to a dealership and ask for the rotors to be resurfaced it is almost always perfect. My GM cars always have no need for new rotors at a GM dealership but somehow at Midas they always say "you need to buy new rotors." So you pay the same either way and the GM job is almost always better IMHO. No the little bit of sandpaper is not good enough. LOL
2006-09-01 07:20:21 · answer #4 · answered by Anonymous · 2⤊ 2⤋
Get them at least resurfaced, the finnish cut will remove glazing, and true up the surfaces to prevent out of round conditions also they will spec the rotor to make sure it's still thick enough to be safe.
Autozone charged me 10 buck each last brake job to cut them
2006-09-01 07:21:59 · answer #5 · answered by fstopf4 4 · 1⤊ 1⤋
Just replace the pads as long as there is no deap grooves in the rotors.If you let the pads get too low they will make groves and tear up the rotor then they will have to be replaced.Dont worr5y about the glazing as thats how they normally run and if you clean it off it will just glaze up again.
2006-09-01 09:49:57 · answer #6 · answered by frank m 5 · 0⤊ 1⤋
it depends on the condition of the rotors. If they are damaged as the pads are being replaced when the car squeels to a stop, then you need to replace the rotors. If there is slight damage, then they can be resurfaced. DO NOT SAND THE ROTORS!!! it is a really BAD idea.
2006-09-01 07:45:16 · answer #7 · answered by deadcars42 3 · 0⤊ 1⤋
whenever the brake pads are replaced, the rotors should be replaced or resurfaced. you do not want new pads against old rotors as this will chew up the new brake pads twice as fast. always new against new material. make sure your machine shop measures the thickness of material left on your rotors, as todays safety standards require a minimum amount of metal left on you rotors to wear down. if there is not enough material left, you will have to buy new rotors.
2006-09-01 07:31:31 · answer #8 · answered by bryan s 2 · 0⤊ 2⤋
You can do the sandpaper to get rid of glazing, that should help with the squeak. I would only resurface if it's really bad. Even then you don't have to "have it turned" you can just throw the pads on there.
2006-09-01 07:20:54 · answer #9 · answered by natex14 4 · 2⤊ 2⤋
Depending on the model of the car, you can buy rotors at Autozone or another parts place almost as cheap as getting them resurfaced.
2006-09-01 07:32:38 · answer #10 · answered by Anonymous · 0⤊ 1⤋