Tim,
I would need one of the older Rx 21 cases to give you good objective numbers. I can say that I have a high level of confidence that the timing is consistent with the Pre-eminent Novarossi modifier's cranks.
I suspect the timing on the old/new cases due to the induction identical due to the need to maintain product compatibility across different models. An easy way to tell would be to measure the width of the bottom of the induction throat in your crankcase. If you come up with 9.00mm then the timing is the same between the old and new cases.
I use diamond mounted cylinders in a "wet" process to cut the crankshaft. I do the cuts in the wet to make sure that none of the heat-treating is lost. I do have a mill, but I've found a dremel with a flex-shaft to be the tool of choice with the crankshaft. I reserve the mill for cuts in the case, piston and sleeve.
I made two of the shafts that I'm currently running. I did this thinking that I would continually need to re-work one of the shafts' metalized epoxy stuffing. I ran one of the shafts without any problems and it appears the shaft will last a good long time, so the additional one is for sale.
I’d like to get at least $45US for the shaft, delivered worldwide.
