46 torpedo distributer drive problem

[Canadian]

Hi. Old Canadian gear head here. I recently purchased a 46 Torpedo and the distributer had been taken out. Didnt think that would be a problem but when installing it discovered i could spin the rotor after it was fully seated in the block. I believe there is something missing as there is no resistance to turning it other than the points follower. If some one has schematics or pictures or parts blow up that would help me alot. The only other pontiac flathead ive owned was a 31 with split head which is of course different