I had another 227 0-6-0 that needed work. It had been around for several years so it was time to do something with it. It was dirty, needed a major servicing, motor work and rewiring.
I completely stripped the loco and started cleaning and inspected all the parts. The intermediate gears, the gears between the drivers, had a strange wear pattern on them so I looked a little harder at them. I found both stub shafts were loose in the die cast frame. See video below.
These stub shafts have the centers in an exact location with respect to the loco's axles and perfectly parallel to the axles to get the proper mesh of the gears. Custom made oversize stub shafts pressed in to percission machined bores just did not seem like it would be worth the cost.
