Richmond times-dispatch. [volume] (Richmond, Va.) 1914-current, 1920-12-05
.SIMPL|F|ED LESSONS IN
/ CARE OF AUTOMOBILES
Engineer Gucrrlich Tells How 10
Remedy Ovcrhcating Troubles
of Average Car Owner.
BY FREDERICK G. GJERRLICli
Iccfurr No Pin

of Average Car Owner.
y BY FREDERICK G. GJERRLICli
Lecture No. 21S.
In recent article mentioned The
z fact that when something is out OF
order with the ignition. the mixture,
Z receive Il signal of this fact by the
Z engine missing. losing power or even
stopping. but that YOU would not re-
ceirc such a signal except when too
cation or cooling system. True. the
Z fact that the water in the radiator
will boil when there is oNcrhcai'ng.
viii often give a signal that there il
something wrong In tn" cooling sys
TEN, but this cannot always be OBJ
served 10y the driver unless he hap
pens to pass in front OF The car 1t
Is good practice for drivers 10 get
into the habit OF holding the back
OF the hand on the radiator ana $"
get accustomed to how hot the radia.
often observe when there Is "a ten
dency TO overhead. in time Investigate
and make the necessary repairs.
In studying the faults of the cool
ing system which are liable To cause
orerhca;inG let as frs; See IN"
course of the water. the burmese OF
each unit in The system, and how it
can cause trouble.
water circulates. Thus, ii is drawn
from the bottom OF the radiator hy
the pump. and then forced by ii
through the cylinders and then up
10 the top OF the radiator. down
through the tubes OF which ii slowly
trickics because OF gravity. AS ;hc
water trcklvs down in The radiator,
il is cooled by, the air. which is
drawn through the radiator oy tho
fan.
We first have the radiator. How
can it fail to function properly?
In time. especially I. there is any
u mn nf ~ h,. a
limc-scale viii form in the tubes.
which scale Viii act as an insulation
against the transfer OF the heat IN
the water to the air drawn ShrouEh
tho radiator to cool il. II is well.
therefore. perhaps once or twice Il
season. TO dissolve this scale with
sodawater.
draining off the water ana then re-
filling with water in which soda. IN
the proportion OF handful to a
iunninr the engine for while This
water is then drawn off and the
radiator retiiicd with ruT. water a
number OF times, until the water
Behind the radiator is the fan.
overhcating Is very often due 10 the
driving belt OF the fan slipping. be
cause il has stretched. or become oil
soaked. On practically all cars the
ian bracket is so designed that the
fan can be moved farther away from
belt. Thus. in the illustration, Il the
nut CA) be looscncd the arm CD can
be. swung on It's pivot TO tighten the
belt
When the bel, is oil-soaked it can
he CLEANED with kerosene and then
treated with castor oil. or, for emGr-
Rency. some Ful!cr's earth can be
sprinkicd or H.
The radiator is always connected
10 the cylinders or pump 10y short
pieces Of rubber hose These will.
~, tina rr. as i,.. All "a Al
times loose portions OF the inner rub
Der or fabric VIII check the flow OF
the water This hose should there
fore. be replaced once q year or. az
least, once in two years. The hose
VIII often appear IN perfect condition
from the outside. but he absolutely
-ottcd Oh the inside.
After the hose comes tho pump. On
practically AL the pres,nt-day cars,
this is OF IN" Centri:uga! type. which
is simple ana seldom gets out u or
der. The water in the pump is liable
10 he the FIRST TO freeze IN cold
weather. and. because Of this. tho pin
cned 20 tho driving shaft sometimes
is shearcd off OF course, this means
that the water VII! not circulate.
~ on an extremely cold day your
frozen up" 4, would u. well 20 pour
some not water or 10 put hot water
soaked rags over the pump, so as 10
melt the ice In case The water has
frozen.
\ large portion Of the cars built
have no pump, hui use what IS known
syphon system. Whore this IS tn.
case extreme care mus; Ice observed
10 always hay" tho radiator we'll
filled with water. As Il III. water in
the radial becomes much lower
than the inlet pipe. the water will
not circulate. properly
Outside OF nc-SCalc forming in
the water Jackets " the cylinders
there will be no trouble here The
treatment for 10 ,imc.$calc in tho
,h. wot. WI" a.: "!.1 dissolve that in
In addition 10 faults IN the cooling
system ltse!i, as given above, over
heating. may De du. 20 carbon d.
posts in The cylinders. 10 running
zoo long on the lower gears, to too
rich a mixture. or running win spur,.
100 far retarded, Improper valve ,lm-
on which work Has been done on In.
half-umc, or cam-shItt driving
gears.
II tho car = used in ia" winter
iilh., nontr"clins mixture shonld
be used In ;he radiator The writer
likes plain d"uatUr"d alcohol
You can judge The amount Of A.
como! 70 use from the following, table.
20 per cent alcohu! - water. frecz.s
Al zero; 80 pcr cen; alcohol. 20 va
ter. ire"zrS al degrees below zero.
80 per cent aJcunol. 60 water. freezes
az 20 desr."s below @tro.
IN I'm, me "lccioi viii rvaporai.
b. added from tim 10 t.m"' 30 nj
can ne given for THIS AS in :, .,,r
M M "hhter o. which has tendency do
or than one u which rl. yyaf.r
comparatively COO. II wll! .le0,.yat,-
Dtht. qG!cher IN e car which is drive.
'"gcn man Ih one litt." driven
II - often good practice O cove.
me tow.r portion ~ he radiator. So
- - prevent IN" passage q the air