timing belt = valve timing

distributor = ignition timing,

regardless of whether or not it gets spark when it's supposed to the motor should still be able to turn over without a problem as long as the valve timing is correct aka the timing belt's on correctly.

you may have flooded the motor aka hydrostatically locked it meaning the cylinder is full of fluid (coolant or gas or whatever) therefore the piston cannot travel upwards.

i really doubt that's your problem though, need more information