Here is an incomplete catalog of Marx locomotive motors. Photos not by William McFadden are
used with permission.
 mechanical non-reversing motor with bell (#635 MERCURY)
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 mechanical non-reversing motor with air-whistle; notice straight lever (#635 MERCURY) photo by Steve Eastman
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 mechanical non-reversing whistling motor with bell; note cast drivers photo by G. "Oly" Olson
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 mechanical non-reversing whistling motor with bell photo by G. "Oly" Olson
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 mechanical non-reversing whistling motor with bell photo by G. "Oly" Olson
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 mechanical non-reversing whistling motor with bell photo by G. "Oly" Olson
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 mechanical non-reversing motor; notice straight lever; (COMMODORE VANDERBILT) photo by Steve Eastman
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 mechanical reversing motor; notice angled lever; (COMMODORE VANDERBILT) photo by Steve Eastman
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 non-reversing mechanical #400 with smoke; note arm and rubber bladder; the bladder would be filled with baking powder photo by Steve Eastman
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 photo by Steve Eastman
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 note the smokestack photo by Steve Eastman
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 non-reversing mechanical motor from #400 smoking locomotive; motor was also used in the #401 photo by Steve Eastman
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 mechanical motor with spark mechanism photo by Steve Eastman
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 photo by Steve Eastman
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 flint lever; these tend to be missing; it is item #194 in the Robert Grossman catalog; photo by Steve Eastman
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 single-reduction electric motor with manual reverse; notice size of gears on back of drivers (#597 COMMODORE VANDERBILT) photo by Ken Stoller
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 photo by Ken Stoller
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 early Canadian Pacific single-reduction electric motor photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 pre-war single-reduction motor with reverse and two-piece pickup; notice size of gears on back of drivers (#597 COMMODORE VANDERBILT)
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 electric double-reduction motor with spark mechanism (#635 MERCURY) photo by Steve Eastman
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 post-war single-reduction motor with reverse and one-piece pickup (#597 COMMODORE VANDERBILT)
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 single-reduction one-way electric motor and Baldwin drivers and no side-rods; (from #591) photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 single-reduction reversing motor from B&O/Southern Pacific diesels photo by Steve Eastman
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 note round mounting plate on top and slots in the front of both sideframes; the slots fit loosely to allow the motor to pivot within the body photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 double-reduction motor from GE diesel; note front mounting plate and lack of provision on drivers for siderods photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 one-way motor for Monon, Seaboard, & KCS diesels (the light and wire were added by owner) photo by Steve Eastman |
 photo by Steve Eastman |
 photo by Steve Eastman |
 photo by Steve Eastman |
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 battery-motor in #401 photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 photo by Steve Eastman
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 motor for E-7 diesel; shown with weight attached but no sidetrucks; the weight is the motor-mount; motor sides are aluminum photo by Steve Eastman
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 photo by Steve Eastman
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 note traction tires photo by Steve Eastman
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 motor for early #21 tin diesel photo by Steve Eastman
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 the mount is higher than on E-7s and spot welded to the motor frame, reducing interchangeability photo by Steve Eastman
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 note wide flange drivers photo by Steve Eastman
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