Today i thought ill replace my aircon belt, well more then replace i thought ill put one on as the previous owner had it cut off(the belt). So i took the pulley off and put on the belt and went back and tightened everything but i have a problem where the pulley's back is now touching the bracket on which is sits. I have looked everywhere and im 100% that nothing has fallen off or lost from my perspective.
So what i did was attach two images showing the mount and the parts i have. Can any1 assist in telling me what im missing or what im doing wrong?

Thats the mount the pulley was on.
And these are the parts i have minus the belt.

any help would be great

Pok.