No not the movie. I have a couple of vintage FA-1s and an FB-1 in my shop that I have been restoring. When I say vintage, I mean first run FAs with chrome horns, shiny brass handrails and side frame springs. After 15 or more years on the rails the side frames and motor blocks internals were slathered with grimy black grease. Now I know if I asked for suggestions on what to use to clean these parts, every chemical hazardous to the environment and my health would be recommended. As a young man I worked for a large pulp and paper company. After a shift with the millwrights, my hands would be greasy up to the elbows. We washed our hands in a 45 gallon drum of number 5 weight oil. The grease sank to the bottom, so the oil was always clean. That oil removed the grease better than any product I have tried since. I spent 25 years maintaining my own motorcycles, so I have tried them all. It’s a wonder I have any fingerprints left. So when it came to removing the grease from all these plastic parts I thought I would give oil a try. Not having a 45 gallon drum of light oil in my basement workshop, I snuck up to the kitchen and swiped a bottle of peanut oil from the kitchen. It worked great and washed off with liquid cleaner and hot water. It left my hands clean and soft as well. The first FA-1 was any easy restoration. All it needed was a bath, new motor gears, and a pair of horns.
The CPR FA-1 and FB-1 were more of a challenge. After cleaning the up the sideframe journals they ran well, so I didn’t bother opening the motor blocks. Unfortunately while testing them I noticed the wheels slipped. More split motor gear axle sleeves I thought. I was surprised when I opened the blocks to find all the gears were new and in good shape. I assume the previous owner replaced them because the sleeves had split. I say that because the axle shafts on the wheels were turned down on a metal lathe to avoid future problems.
Unfortunately that removed the serrations on the shafts. The shafts are so smooth I can easily turn the wheels with my fingers. There’s one that can be added to the "Good idea; didn’t work file. Fortunately the new owner has “four new motor blocks waiting to be needed somewhere”.