disc brake scraping sound
I had to change my front tire and now when I put the wheel back on, as soon as I tighten the pinhead skewer, a metallic scraping sound starts coming from the disc brake.
I'm pretty sure it's not the disc rubbing on the brake pads, but rather the "arms" of the disc are rubbing on the "housing" below the pads. (Sorry I don't have better terminology). I'm starting to see shiny metal on the housing where the coating of dirt is getting scraped off. These are Shimano M495 disc brakes.
I've tried seating the wheel/axle ever so slightly differently in every direction, and each time, the wheel spins free until I tighten the skewer, at which point the scraping starts again. Any tips or tricks?