Originally Posted by 60wag
If the dizzy spins when the engine is cranked, the gears must be connecting and the cam shaft is likely fine. I'd measure the distance from the dizzy seating surface on the block to the oil pump. Then compare it to the length of the dizzy shaft. If the dizzy is seated on the block, are you sure it is long enough to fully engage the slot in the oil pump? I don't know if there are different length dizzys out there but its worth checking. Is it possible to shove the oil pump down (bend the mount) by forcing the dizzy in when misaligned?
If the dist was smoothly dropping in like they usually do then I would agree with you. But since he says it gets tight and he has to force it down then something else is going on to cause a bind before the dist is fully seated. The gears could be engaging enough to make the dist spin but binding enough that the dist is not dropping down far enough to engage the oil pump slot.