In Reply to: 9n wont turn over posted by will on June 09, 2020 at 19:52:19:
It would appear your problem is in the ground path. Did you happen to run that starter before you installed it? Was it painted during the rebuild?
Try measuring for voltage between the starter case and the grounded post on the battery. Sounds like somewhere in that circuit you will find the problem.
I can't remember if the 9N used a Bendix but if the starter gear is extended into the ring gear, the starter will not pick up that load.