I would like to fit an OS vrm flywheel to this engine however as I noticed on disassembling the prop drive washer and split pin, that the crank shaft
has no shoulder with thread on and rely's upon a piece of stud screwed into the prop driver to secure the prop.
There is a small shoulder to center the prop on the prop driver but not enough to get a good location with a flywheel with a split collar.
Is there an earlier version of this crankshaft with a conventional ground shoulder and threaded stud available that I can mount a flywheel on ?
Thanks
martin