Quote:
Originally Posted by cdb95z28
Pads have two friction modes, abrasive friction (cold) and adherent friction (hot). The OE pads may have enough cold abrasive friction to clean up the rotors. Some guys have complained about noise when street driving. This usually is a sign of all transfer layer being wiped off due to being in abrasive mode. Keep the temps down. Just do light to moderate braking. Keep the applications short in order to not build too much heat. I don't think you'll hurt the new pads if you don't have success, so long as you didn't outright cook them, for some reason, beyond even what a track day would. It may take time because the new pads have to bed in to the rotor surface.
An aggressive race pad would clean them up but it's unreasonable to purchase them just for that use.
I've used this course hone multiple times over the years on various vehicles with success. I haven't used it in a while because I have moved away from low temp, usually ceramic, pad materials on all my vehicles. I try to use semi metallics. Yeah, dirty! But the saying is "A dustless pad is a stopless pad". Not necessarily true but good pads will have some levels of dirt. The OE Ferodo HP1000 pad is a very good dual purpose pad.
https://www.amazon.com/dp/B007INTEMC...m?ie=UTF8&th=1
You would have to remove the rotor to do use it on the back side. If the rotor is well within the minimum thickness and has no deep scoring I would reuse. In very rare instances, a rotor can be damaged from repeated heavy use during the shudder which 99.5% of the time is due to uneven pad transfer layer. The high spots can overheat the cast iron to the point that the cast iron develops a super hard area that cannot be machined out. |
I used the tool this guy said and so far (knock on wood) it’s worked. Only thing is I recommend LEAVING the rotor on the car, removing the pads and spinning the rotor by hand while using the tool. I believe it’s much more effective this way and possibly safer (not sure how aggressive the tool actually is)? Watch this video below as it shows the steps I described.
https://youtu.be/XpK_dA68_T0?si=0T6aK_iujbkAQ4wo