Nissan A12 Motor Starter Issue

[MrStabby]

Have a mate who has just reinstalled the A12 4 cylinder carbied motor in an old ute. The starter runs, turns the motor slowly and makes a lot of tapping noise. So far we have tried jump starting the car, and changed the starter to a new one - no difference either time. AFAICT the starter cant be miss-aligned since its like an rb in that there's no adjustment or options. Ring gear on the flywheel is like new.

Any ideas?

[StevenCJR31]

only thing left would be the wiring from the battery to the SM . . suggest you check that out