New Mexico state record. (Santa Fe, N.M.) 1914-19??, 1920-07-30
VALUABLE HINTS
ON 0vERHEATINC
Extra Precautions Should Be
Taken During Summer to
Avoid Long Delays.
SEVERAL COMMON TROUBLES
Leaks in Water System Cause Exees-
s!ve Heatine-Wrons Ignition Tim
ing Will Result in Quick Jump
Of Temperature.

O%verheating is a rather common
complaint in summer. and some
times, while no serious results Oc-
cur. the mOtOrist Is delayed on the
road and often required to spend no
little time ~endeavOring to determine
the exact cause. Because there are
numerous causes. every owner should
be familiar with the more common
mes.
All makes Of cars but two are wa
~ter-cOOled. Naturally, in such EN-
gines partial depletion of the water
system means an overheated engine.
This Is more particularly the case with
thermO-siphOn cooled engines, which
require a complete circuit of water.
1t Is therefore a good plan for the
owner of a car with thermO-siphon
cooled engine to see that the radiator
always is full. In a pump-cooled en-
CINE there Is more force back of the
water and a lower level may be ear
ried without the danger of over
heating.
Leaks In the water system natu-
rally bring about reduction of water
supply and consequent excessive
heating of what water remains.
Quick Heating.
Anything tending to interfere with
the free circulation of. the water
through the radiator or the water
10 .I.at I-nn,,c slN nnI,nt t-atnt I'm aAn-
tact with the hot cylinders too long,
resulting In boiling of that water.
DISTINCTIONS may he in the form of
dirt or sediment in the radiator,
disintegrated hose connection, which
partially clog the ~passageways; an
obstruction Of dirt or Jumps or rusty
material in the water Jacket.
Ii is quite possible for the ignition
timing to be wrong, so that manipu-
latiOn of the lever will not advance
the spark enough TO keep the engine
cool. This is n matter for an ignition
man TO correct, as it may be due to a
number OF, causes, the commonest be-
Ing Il wrong setting Of the timer or
a hh''huJuNtii'ih Va INV H''cAiuli''
points.
One OF the coInmonest capSas of
overheating is due to a slipping fan
belt. 1t Is absolutely necessary for
the fan ia cause sufficient air draft
to cool the water as it flows through
fhe radiator, A slipping belt re-
duces the fan speed and thus cuts
down the draft. The belt should be
taIt but not tight. Tight btits usu-
ally wear too fast and break, and they
also wear the pulley bearings.
Poor Mixture. Co..
A poor mixture, usually a rich one,
brings about Overheating. Carbon In
the cylinders also VIII cause the en-
CINE to heat rapidly, but. at the same
time the engine will lack power, knock.
and generally perform poorly. If you
get The whole combination. OF trouble
indicating engine d~ebility.rahd then
yet the o~verheating, 1t usually is Q
sure indication OF carbon t'""
Any drag on the engine, causing 1T
Ia overwork. Is. likely to cause over
When the clutch, slips the
tn do more sSa,rki 10 accom-
pliSl a given sci of. results also when
the brakes drag.
II the engine should overhead. the
sooner it is slapped The better. Alter
stopping the engine. allow II TO cool
for about q or fifteen minutes: II
depends. upon how hot itais. Then
add cold water slowly until the sys-
Is full. Then start the engine
agnin, noting. through the radiator
filler II there Is circulation.