Might seem a silly question..

But I made up some braided hoses with the re-usable type compression fittings on them...

Went to remove one of them today from the rear wheel cylinder and instead of undoing the entire end fitting, I split the fitting in half leaving one part complete with olive on the flexi pipe and the other part screwed into the wheel cylinder.. DOH!!!

Can I simply unscrew the part from the wheel cylinder and put it back into the pipe and nip it up, or do I need to get new olive and re cut the pipe?

Nah...........just put it back together

you're supposed to replace the brass olive