i just received my two s6 brand new rotor housings...upon inspection i noticed that on the inner surface, where the apex seal passes, there were a lot of shiny metallic specks on the bottom half of the housings..some seem to come off with some water and wiping with a cloth but most remain...it feels rough to the touch...has anyone ever encountered this before?...what should i do?...is it ok to use a scotchbrite pad or something to try to get the specks off?...or would that cause damage to the housings?...

 

Try some brake cleaner and a paper towel. Were these in the mazda boxes and bagged?

 

I've received a couple, directly from Mazda, that were defective. So, yes, it's possible to get a bad one.

 

ok i will try that and let you know....they came in the mazda boxes and were bagged in a plastic bag...i ordered them from a reputable rotary shop...i will make an update when i try the brake cleaner...thanks for the quick replies guys...

C.Ludwig, the housings that you got was it the same problem?

 

ok i just tried the brake cleaner and it worked miraculously!! lol...the housings are 100%smooth now....thank you for the input goodfellafd3s!!...