That's a good idea. I have been experimenting with adding sound decoders to my steam locos and in the process I have inadvertently popped the pin out if the new driver assemblies a few times. I have been able to get them back (usually) in place but it does require many tries, A LOT of patience and a steady hand. Also, some trial and error; put back if it looks right, test on the track and see if it runs smoothly, it will tell you if not, then pop out and try again. So I like the idea of a solution that doesn't require messing with opening the bottom plate or involving the driver assemblies.
On Sunday, April 3, 2022, 05:20:20 PM EDT, Thomas Knapp <thomasknapp@...> wrote:
-- Anthony, Since converting my first Marklin Mini Club steam locomotive to Nn3 in 1972, I have disassembled and re-assembled dozens (if not hundreds) of Z steam locomotives. Removing the driver assembly and gears is not something to be taken lightly, so my first choice for widening the back-to-back would be to press a tapered shim between the back of the wheel and the chassis to lever the driver out a bit while the driver assembly and all gears are still within the chassis. Tom K.