MDC/ROUNDHOUSE locomotive rebuilds

[cnrglen]

Thanks
Well out of the paint shop and ready for cleanup and assembly:

I used a Wal-Mart rattle can of flat black to paint the parts. I really like the color because it has a tinge of charcoal in it and the paint is inexpensive. It makes for a great starting point for weathering later.

I re-assembled the crossheads/cylinders and yoke. I used some Lacquer thinner and Q-tips to clean the paint off the guide rods and front pilot wheel treads. Upon re-assemble I found another bind caused by a slightly bent guide rod so I swapped it out.

I painted the chassis with the retainer plate in place to mask those two mating surfaces. Then I cleaned the axle slots and gear housing with more thinner and Q-tips.
Now before I start re-assembly, should I be lubricating the axles and gears with anything?