New calliper & Rear pads - no contact

[haimsey]

Replaced my leaky passenger rear calliper with a nonleaky one from a breakers. Bled the callipers, new rear pads (both sides).
Looked at the car yesterday and noticed the outside face of the disc (pass side) was orange/rusty as they are after washing/standing in the rain - drivers side is silver/clean. Its as if the outer pad in the calliper isnt making any contact with the disc face - correct? - what can I look for, and do, to rectify this?

 

[guysy]

The caliper could be seized, you can take it off and wind the piston in and out with a screwdriver and add a bit off grease to try and free things up.

 

[haimsey]

The inside face of the disc is ok though, there seems to be contact on the inside. Will get under later when its a bit lighter and have another mooch