Guides to Marx Locomotive Motors


Here is an incomplete catalog of Marx locomotive motors. Photos not by William McFadden are used with permission.

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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

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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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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