Hoping someone on the Forum (perhaps @Gunrunner John) might be familiar with this based on actual experience.
I note that both Williams F3 and FA-1 diesels share the same motor truck - part number 293-E003. These engines have different motors however, with the F3 using part number 1468-E004 and the FA-1 using part number 808-E002. The only visible difference I can detect is the F3 motor carries a larger flywheel than the FA-1 motor. Presumably, the worm gear on both motors is identical as both use the same motor truck.
My question is this; since both motors use the same motor truck, would there be any issue with using FA-1 motors to power an F3 or, F3 motors to power an FA-1?
My purpose in asking is to make possible the upgrade of a favorite F3 to MTH PS3.0. This conversion is not possible with the F3 motor due to the size of the flywheel. The conversion is possible using FA-1 motors though. Since I have both models in my collection, swapping motors is an option provided there are no technical or mechanical reasons preventing it.
Thanks in advance for any info y’all can share!