Brake disc problem?

[alinton]

Hi all - I noticed the other day that the inside surface of one of my rear discs is all rusty and rough - it looks as if it's never been troubled by a pad!



The pads are not worn out - what could have caused this do you think?



Thanks



Andy.

[southendpier]

Did you get any brake pull?



no friction on the disc is weird. Discs do rust up quickly, I guess it was still there after a drive?



Caliper piston seized or caliper slides seized??



Also check you haven't lost the friction material on the brake my bro had a brake disintegrate on one side once.

[twizellb]

Piston seized mate

[JensenA]

If the discs are rusty, it means the pads aren't pushing against it, which means the pistons in the calliper are seized, strip it down, clean it and fit new seals.

[alinton]

Well I'm getting braking but not as good on that side as the other.



A.

[alinton]

And will I need to get the disc skimmed or will it clean off once the pad is working?



A.

[JensenA]

Once they start working the disc will soon clean up.