Good point on the crank @riki. This image is not the exact crank you have, but is representative and displays the alignment pins that must properly seat in the wheel:
Those pins must rest in the depressions in this representative drive wheel:
@harmonyards, following the full thread, you would see it has been determined @riki is building off of a 6-18005 frame, thus the postwar and MPC service diagrams (that even I posted and suggested before narrowing down what was had), are may not necessairly applicable. We all should be working off of the 6-18005 as broken down here: https://www.lionelsupport.com/...94-8d1d-48591eea334f and here https://www.lionelsupport.com/...201-8005Complete.pdf
