Brake rotor resurfacing.

[LL - NY]

Hawk Brakes actually recommends "burnishing" rotors if you are switching pad
compounds in their installation instructions (and website). They actually
recommend 200 grit sandpaper (I use a block) to clean off the previous pad
deposits. Then, you are to do the bedding procedure. I'm guessing Hawk isn't
too concerned about silica deposits.  FWIW, I did this on the Saabaru
switching from EBC Yellows to Hawk HP+, standard Brembo rotors.  They
haven't been all that squeaky until about 8K miles and some 18 autocross
runs after install.

LL - NY

On Wed, Aug 19, 2009 at 3:59 PM, Grant Lenahan <glenahan at vfemail.net> wrote:

> I worried about this too. But careful sanding, as i described:
>
> 1. removed pad deposits that other methods had not
> 2. removed a lip that was preventing pad seating
>     (note: i also went around that lip with a screwdriver, knocking
> it off)
>
> So the point is, it can work. I agree you can also make matters
> worse.  I suggest trying it.
>
> Grant
> On Aug 19, 2009, at 2:32 PM, thejimrose wrote:
>
> > hey all - you definitely don't want to sand / sandblast / etc brake
> > rotors. with these methods there is no way to insure the rotor faces
> > are flat. also the silica in most abrasives is not good to have
> > embedded into the rotor faces. surface rust on rotors is a non issue
> > [pads will clean them in 3 seconds of use] and if pad deposits can't
> > be bed out, then the rotors should be turned or blanchard ground.
> >
> > you should see the face our brake engineer made when i asked him about
> > sanding rotors. =)
> >
> > jim
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>
>
>
> Grant Lenahan
> glenahan at vfemail.net
> (201) 602-4702 mobile
>
>
>
>
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