ok so in the Timing belt process I removed the bolt. I could not brake it free for a while, so I used the Starter trick... and wow that's awesome how it works,

but anyway.

I got the bolt of right, then I was playing around with the pully and the damn thing separated!!! now it wasent a easy separation it dident just fall off, but I screwed up and dident know that I was causing harm by separating them,

but now my question is can I just slip it back on, or do I need to get a new one,

my Pulley and Balancer are in good shape, can I rebuild it?

now I understand this is the crank pulley I shouldn't mess around with it I just want to know my options

Thanks