I'm trying to bring my old Lionel train set (O gauge) back to working
order. The problem is that the engine (yellow Rio Grande 221 made in
the early 60's) only runs backwards. When I toggle the e-unit to make
it run forwards the motor stops. If I then manually try to move the
motor it seems stuck in a magnetic field.
I notice that the field wiring is double wound with both red and green
magnet wire. I'm guessing that one coil causes the motor to run
forwards, the other causes the motor to run backwards. I'm also
guessing that the forward coil is burned out (although that doesn't
explain the magnetic field mentioned above). Not sure but I don't
think it is the e-unit as it is really just a contact device and it's
pretty obvious that the contacts switch when it toggles.
Could someone familiar with these engines please speculate on a
prognosis? If the coil is burned out it's probably not worth repairing
but my hope is that I'm overlooking a possible simple fix.
16 years ago