The Topeka state journal. [volume] (Topeka, Kansas) 1892-1980, 1912-05-11
COOLING METHODS.
Some Suggestions Which May Be Some
Assistance.


There are two ways of cooling the
internal combustion motor, namely,
by air and water" says William II.
Stewart Jr., of New York In eacn
case, however, there are several
methods employed In the air-cooled
motor one finds advantages over the
water-cooled system, in that there is
greater simplicity and less weight.
Also in zero weather there is no pos
sibility of freezing The latest melnod
of air cooling is to force the air by
means of a fan or fly wheAl through
an air jacket about the cyllnaers. Ihls
system has proved very eI1clehl' es-
pecially where the motor has the aux
Hilary exhaust valves. Iroupies Mhen
the air-cooled motor are not unlike
those of the water-cooled type, except
in their tendency to overheat IN not
weather Here one must use Judg-
ment and not force the motor to work
overtime.
I'm climbing long and steep grades
an occasional rest for the engine is
advisa Bile. This resting of the engine
does not necessarily mean the smut
ting down of same. On the contrary
should the engine overhead sufficient
lv to cause the piStOns to drag, IL is
much better to keep the engine run
ming slowly with maximum advance
spark and very little gas. This VIII
prevent the pistons Selling a grad
uaI cooling of the motor takes place.
1t must be understood that the wafer
cooled engine will, under similar con-
ditions, overhead, but the reHneoy III
each case is similar.
an water-cooIed types of engines
there are two systems used to obtain
the cooling effect of the water, name
", the thermosyphon system ana the
force pump system. In the lherno
system the circulation of the water de-
pends upon the heated water ABOUT
the cylinders rising and the water,
cooled coming in to take its place. IN
Il f@fr az
nection pipes. are of liberal size, De
creasing as much as possible the re-
sistance to the flow of water.
ssIn the force-punp system the water
is circulated in and about the cynnoers
NV means of a pump. This pump is
driven by the engine, and its speed
varies with the engine. Thus the clrcu-
Iation of the water is controlled IN
way by the motor. The general aoop-
ton of this system proves its enlclency'
and the troubles resulting from lts u.s. use
are purely mechanical. Quite often dirt
or other foreign matter will lodge IN
the pump causing broken pump
blade or tooth, or perhaps wedglng the
pump and causing broken pump
shaft In such an instance everything
anpears in good order, but the circula-
ton of the water is practically blocked
and the hot engine is the result How |
ever if is not difficult to locate trouble |
in the water pump. First, all connect
ing hose should be care1ully inspected |
TO see that the inner walls have not |
closed. thus preventing passage of i
water. The closing of the hose produces |
the same result as a useless pump.
..As the water enters the pump from |
the base of the radiator, and is from I
there forced into the cylinders, one can !
easily remove the connection just be-
yond the pump and observe the flow or /
started additional water must be fed !
to the radiator. This test will plainly /
show the efficiency of the pump. Should
water. OF course, when the engine is |
the pump work properly and should all
the hose be in good order, then the OBJ
struction will undoubtedly be found N
the radiator Quite often it is neces-
sary to remove the radiator and clean
same with a suitable solution to re-
move the mineral deposits on the inner
surface These deposits on the radiator
walls together with a carbon deposit
on the cylinder walls, all materially
affect the cooling area and cause the 4
motor to overhead. /