A Traditional Green Fairbanks-Morse

By Staff
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3HP FM Z. Better view of the 'fixed jet carburetor' and the 'Ford' coil and battery box.
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A view of the' fixed jet design' carburetor and the coil and battery box. This is a 1 HP Z. The paint and the muffler are not original.
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1108 Emery Lane Clarksville, Indiana 47129-1508

#1: The 3 HP Z in this photo has the original red paint. The l
HP with the solid disc flywheels has been repainted. Both engines
are equipped with the original oilers and the Ford coil and battery
box. The starting crank on the 3HP is original and was also painted
red.

#2: This front view of a 3HP Z reveals most of the changes made
in these particular engines in the 1920s. The red paint (this is
original) is obvious. The unusual style of the carburetor is
revealed as is the black box which holds the coil and battery for
the ignition. The muffler on this engine is not original.

The Fairbanks-Morse style ‘Z’ was a very popular source
of power in the mid-twenties, and most old iron collectors of today
are familiar with the 1 HP ‘Z’ that came from the factory
painted a bright red. Green was the color used on all style Z’s
until the 20s, when the F-M Company decided to produce and sell a
somewhat less expensive version of the already successful style Z.
Several other changes were also introduced in the new style Zs,
besides the use of red paint, which the company hoped would make
them ‘stand out’ from the rest of the Fairbanks-Morse line
of engines. The new Z’s were available in the 1 and 3 HP models
(See photo #1). The 3 HP represented in this picture was
manufactured in the early part of 1926. The l HP was ready for
delivery in 1922, unlike the 3 HP. The l came with solid disc
wheels, commonly referred to ‘dish-pan style’
flywheels.

1 HP Fairbanks and Morse Z on original trucks. Engine has
dishpan type flywheels. Paint and muffler are not original. Notice
the pressed steel oiler used only on these red Fairbanks with a
coil and battery for ignition.

The carburetor or ‘mixer’ used on the new Z’s is a
fixed jet design, and does not incorporate an adjustable,
‘needle valve.’ To change the fuel mixture, all that was
required was for the operator to open or close the air shutter.
This type of carburetor is sensitive, and a minor adjustment will
immediately affect the performance of the engine (See photo #2).
The other major change in these particular Z’s was in the
ignition system. Previously, a magneto supplied the necessary spark
to run the engine. The magnets were replaced, (in order to cut
production costs) with a coil and four #6 dry cell batteries. The
coil was a model T Ford coil, and the battery box that contained
the coil and batteries was also a Ford product. This is a very
effective ignition system and Ford coils are used today in various
engines of this era.

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