Where can I find info about types and applications of Marx motors: which locos used single reduction (fat wheel) mechanisms vs. double reduction? And to what extant can they be interchanged? I've generally avoided acquiring fat-wheel locos because I have mostly Lionel switches with conventional frogs in my layouts.
Did 999 steamers or the big Marx tin diesels originally have any double reduction versions? Can they be converted from fat wheel mechanisms?
Thanks in advance for any help.
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Ace,
This topic has come up before on the forum. You may want to start here, although the thread is also about Marx switches:
https://ogrforum.com/...50#88295249955313250
Mike
Mercury & Commodore Vanderbilt's, Various version of the phat driver electric motor, various clockwork motor types.
Canadian Pacific styles, phat driver electric, a very hard to find clockwork.
400 & 490, wow! motor types are all over, but some had a DR motor and can be found cheaply so a good place to get a donor motor.
999, 99% had phat driver motors. An early rare version had a clockwork and was number 666. A late version the brought the 999 out of retirement and had a DR motor, only one set for Sears that I can recall.
666 & 1666, always a DR motor. With and without smoke. Some can be found with traction tires.
333 & 1829, always a 6 wheel DR. With and without smoke, a few with traction tires.
Small tin Seaboard, KCS & Monon diesels, again motor types are all over, some with DR motor, some clockwork.
Large tin #21 diesel, always a phat gear motorones, especially B&O had DR motors
Plastic E7 diesels, early had phat driver motors, late had DR motors.
Most 4 wheel motors can be swapped around without too much work.
Hope that gets you most of what your looking for.
Steve
@Steve "Papa" Eastman posted:... Hope that gets you most of what your looking for.
Steve
Thanks very much Steve, that's great information!
I notice on a plastic #490 steamer, it appears impossible to remove the DR motor without damaging the shell because of the way it snaps in place. And I wasn't sure if the mechanism could be adapted to fit older Marx.
@Ace posted:Thanks very much Steve, that's great information!
I notice on a plastic #490 steamer, it appears impossible to remove the DR motor without damaging the shell because of the way it snaps in place. And I wasn't sure if the mechanism could be adapted to fit older Marx.
The plastic ones with the snap in motor are the lower end phat driver motors. Getting the front hanger out without damage can be difficult but doable. Letting the shell get warm helps a lot. Here, I use sunshine, but an oven at maybe 120 may work.
Steve
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