Model N

    In 1913 Fuller & Johnson introduced what was to become their most popular hopper cooled engine, the model N.  The model N was a hopper cooled gasoline engine with "hit & miss" governing.  First made in 1 1/2, 2 1/2, 4, 6, 8 and 10 hp,   they were re-rated to 1 1/2, 3, 5, 7, 9 and 12 hp late in 1916.  They differed little from each other except for physical size, the 1 1/2 hp being an exception.  This little engine did not have a water cooled head or fly ball governor.  The cylinder and base were also cast in a single piece.  Over the years of production minor changes were made to these engines.  The position of the oilier changed, so did that of the gear driven magnetos.  The smaller engines of late manufacture had flywheels with a crowned face and were of a smaller diameter.  As time went by the reliable low tension ignition system was replaced with a Wico EK magneto and sparkplug.  The model N enjoyed immense success, the larger sizes eventually became the model NB while the smaller ones were phased out and replaced by improved designs.  

Fuller & Johnson's most popular sized engine!  This little 1 1/2 hp engine displays all the typical features of a mid production engine, large diameter narrow flywheels and battery with coil.

The final years of the 1 1/2 hp N.  Both have the wider crowned flywheel and geared magneto.  Note the position of the magnetos.  Engines could be ordered on wood skids or iron sub base.

9 or 12 hp N with 3/4 base on skids.

The pleasing lines of the N are apparent on this 5 hp engine.

Any engine 5 hp and up could be ordered as a team portable.  This 7 hp N was shipped from the factory as shown.

This No. 776 portable saw rig was built be Fuller & Johnson and could be equipped with a 7 or 9 hp engine.

The No. 4 tilting table saw rig was available with a 5, 7 or 9 hp engine and was shipped as shown.

Fuller & Johnson offered these heavy pumping units with Nor K engines.  A clutch was available as an extra so the engine could be used for other work. 

The simple and reliable workings of the N, in this case a 7 hp, are show well in this photo.

Engines 3 to 12 hp that were to be used indoors could be ordered with a fuel pump connected to an outside tank and a cover plate for the hopper with steam vent.  This 9 or 12 hp N has a geared magneto as well.

A 7 hp N with geared magneto

The 2 1/2 hp N of 1923 was the only other N besides the 1 1/2 hp to use a sliding governor weight.  This engine has the wider crowned flywheels, re-positioned drip oilier, gear driven magneto and iron sub base.  Later, this engine became part of the NA and NB series.

The original model N series, 1 1/2 to 10 hp.  Notice the three N kerosene engines!

Here is Fuller & Johnson's first attempt at a kerosene engine.  It was a model N that had its normal carburetor replaced with a large mixer containing a gasoline reservoir.  Hot air was brought from the back of the muffler to the mixer.  A special valve allowed the operator to adjust the amount of cool or heated air being delivered to the engine.  This example is on a factory cart available for the 2 1/2 and 4 hp engines.

This head view well illustrates the hot air shield and related piping.