The Bennington evening banner. (Bennington, Vt.) 19??-1961, 1919-09-29
FUEL NOW GREATEST
PROBLEM OF OWNER
Low Grade Gasoline often Causes
Motor Knocks, Fouled Spark Plugs
and Burned Out Bearings

Motor Knocks, Fouled Spark Plugs
and Burned Out Bearings
With the tremendous increase in
the consumption of gasoene and the
consequent reduction in its qaulity, the
fuel problem is becoming of greater
Importance every day to the automo-
bile owner.
TO understand the situation it H.
necessary to remember that the auto
mobile motor is operated by heat, that
it is the expansion of the hot gases in
the combustion chamber that moves
the piston. The problem then is to
extract as many heat units as possible
out Of tha fuel that is taken into the
cylinder
In the early days this was compar-
atively easy as the gasoene supplied
then was highly y0 atilc and was easily
Vaporized in an inflammable gas. As
1.-THE demand for gaso enc increased,
however, the supply proved insufficient
and had to be supplemented by the adj
dition of the heavier oil products which
were not so easily yaporized.
The result was exactly the same as
though you tried to burn heavy lump
coal in furnace designed exclusively
for nut. In the automobile engine the
heavier fuel refused to vaporiZe pro-
perly. Part of it was burned part of
it formed carbon and fouled the spark
plugs while some leaked past the pis
ton rings into the oil in the crank case
destroying its lubricating properties.
The outcome was burned out bear
ings fou ed spark plugs, the formation
lof excessive carbon in the cylinders,
hard starting, waste Of fuel, low mile
age, loss of power, and a knocking mo-
Tor, TO remedy these evils. engineers
resorted to various methods of apply
ing heat to assist in the vaporization
of the fuel. realizing that the low
grade gasolena available would supply
more heat units than high grade fuel,
and furnish more power if these heat
units could be extracted.
The result may be seen in the Essex.
The wonderful performance of which
during the past few months has aston
ished the motor world. Although it
IS only 20 IL inches in length over
all, the Essex motor develops more
than Sc horsepower. This remarkable
achievement is made possible by it's
scientific construction which permits
the thorough atomization and burning
of every drop of fuel supplied.
The manifold carrying the carbure- .
tor is boted directly to the cylinder
block and the inward passages are
given q downward slCpe from the car
buretor through the valves. Perfect
conditions for starting are assured
since the raw gasolene flowing from
a chOked carburetOr must prime every
cylinder in the most effective way. The
combination of gravity few of the .
mixture and the hot manifold insures
perfect distribution and complete com
bustion OF the fuel
In addition the shutters on the radia-
tor which are controlled from the dash
enable the driver to operate the mo-
tor at the most efficient temperature .
which is clearly indicated by the mo /
tormeter on the radiator cap In the
doing away with the necessity for the
winter the louvre openings in the hood
are covered on the inside with a plate .
unsightly radiator covers seen in win. /
ter on so many cars.
The result is an efficiency in oper-
alton which has made the Essex one
of the NEST popular cars ever brought
out as is shown by the more than
10000 already in the hands of their
owners.-Adv .