Distributor issues

Hi, i just did some work on my 1972 datsun 240z. This "work" was replacing the condenser. Everything was going well until i dropped a nut inside the distributor and i had to take everything apart. I put everything back together, regapped the points and turned it over only to find i had no spark =( perhaps i missed something? i checked it twice then three times and even swapped the old condenser back on ( which sparked before i did all this) and still no spark. Maybe someone could help me... maybe not, but im sure with some time i can figure out what i did wrong. probably something dumb.