The Dolores star., 1922-06-23
COOLING SYSTEM
EFFICIENT UNIT
Average Owner Often 0verlooks
Existence of This Part of
Cars Anatomy.
PLAN TO FORESTALL FAILURE
Not Very Great Amount Of Attention
10 Necessary, But All Parts Should
Be Cleaned YearIy-Also Re-
new Rubber Hose.

One Of the most thoroughly efficient
units in the modern motor vehicle is
the cooling system. The average car
owner pretty nearly forgets the ex-
istence of this part of the cars
anatomy except for the rare occasion
when something goes wrong in il.
Now, 1t is generally possible TO fore
stall any failure in the cooling sys-
ten If certain simple rules of main-
tenance are followed.
In the main, water cooling systems
are all very much alike. The water
in the jackets circulates around the
cylinders, picking up the excess heat
and then going to the top of the ra-
diator, whence it flows downward to
the bottom through cells or tubes, get
ting rid of much of its heat on the
way. A fan is provided to send air
In through the tubes or the radiator,
assisting in the dissipation Of the
heat. Without the help Of the fan, it
would require a much greater area of
radiation to get rid of the heat.
Water cooling systems are divided
into two distinct types, known re-
spectively as thermO-syphon and
pump. The thermo-syphon depends for
its effectiveness on the working of a
simple natural law. Hot water is
lighter than cold and rises to the top.
The thernO-syphsn water system
has the great advantage of simplicity /;
In fact, nothing could be simpler; it
follows directly the working Of nat
ural law. When properly designed,
the system is quite adequate to or
dinary demands. 1t is particularly eff
fective on small engines. The matter
of design is paramount with respect
to this type of cooling system. In the
thermo-SyphOn cooling system OBJ
structions are more serious than in the
pump system, because there is not the
positive flow of water which tends to
push minor distractions of foreign
matter out of the way. The thermo-
syphon system must be kept rigorous
ly clean.
In the pump cooling system centri-
fugal pump, driven from the engine,
forces the water around the system,
thub LudlutdluluB tne ClTCuldtlOu ueeu-
ed for proper cooling. AS long as
the engine is running the pump is Op-
Grating and the water Is circulating.
The pump system il more expensive
to install, which explains why ma
jority of our American cars use ther-
mo-syphon cooling.
The cooling system does not need
any very great amount Of attention.
1t should be thoroughly cleaned out at
lease once a year and 1t is advisable
to take the radiator to firm spe-
cializing in this work for cleansing.
AS much as four pounds Of muck are
often taken out of one radiator Many
car owners find it advantageous to fill
the cooling system with strong solu-
ton of washing soda and water and
then run the engine for half an hour.
This helps reduce scale deposits and
when the system is drained and
flushed out two or three times with
clear water noticeable improvement
in operation in inevitable. Once year
the rubber hose connections should be
renewed and the fan belt should be
tested to see that it is tight enough
to insure proper operation of this i'm
pOrtont unit.