@Johnsgg1 posted:If a truck came with motors with nylon gears you can't replace the motor with one with metal gears. It won't mesh. The metal gear will miss the brass spur gear on the truck. Subsequently the nylon gear will bind the brass spur gear on the truck that came with metal geared motors. A discovery I made while servicing/repairing.
Very interesting - so the truck and motor must be matched.
Well if a decision can be made as to which motor I have based on the pictures above, then I would conclude I have the motor on the left, with a nylon gear. The rounded hump visible just below the field coil looks identical to mine.
Now as to matching the motor with the truck, my nylon idler gears do not bind with the brass spur gear on the truck when seated. Quite the opposite, they only engage about 50%-60% of the brass spur gear, what conclusion is to be drawn? My first thought was perhaps the nylon gear teeth are well worn. Although they don't appear to be worn, I believe that my eyes could be deceiving me. I guess I will know more when I get my new repro 2343-196 idler gears seen here from Trainz.
@Johnsgg1 do you know if Lionel assigned different part numbers to the matching trucks for metal idler gear equipped motors vs. nylon idler gear equipped motors?
And because the question was asked earlier in this thread about the hole that provides access to pushing out the idler gear stud, here's a pic. I wonder if that could be another distinguishing feature of a nylon idler gear vs. metal?
George
