Tulsa daily world. [volume] (Tulsa, Indian Territory [Okla.]) 1905-1919, 1917-12-30

engine in cold weather. and TO keep II
goinE;
Two things must be done. FOR
! starting. the mixture must he made
so rich In gas that while much VIII
condonsc on tho way TO cylinders,
enough Will reach them to give an
explosive mixture and to keep the
| engine going when tho mixture ns
II leaves the carburetor Ia correct,
heat must be added.
The mixture is made rich for start
Ing In a number OF ways. Some car
buretors have an attachment by which
the opening OF the nozzle can he in
creased from the dash, while all
either have n device for choking Of
the air (what is known as a choke
valve) or for flooding the carburetor
by holding down the float
Genei ally using these prlmlng de-
Vices VIII be all that is necessary 10
start tho engine, but in extreme cold
weather II will often be necessary to
prime the engine by pouring II little
raw gasoline into the cylinders thru
the compression cocks or sparkplug
holes Warming the gasoline used
for this purpose by placing tho can in
which i In In In boiling wate. for a
while will help when 1t is found that
even by priming I'm this way tho en-
Rine does not start Spinning the
crank handle vigorously will also help.
Unfortunately there is at present no
satisfactory way TO supply hea. when
starting the engine, but once the en-
gine has started the air which passes
thru the carburetor can be heated ~
placing n device. called a stove, over
the exhaust pipe, 80 as to make the
air first pass over this hot pipe. From
the stove n flexible hose is run 10 the
air intake OF the carburetor AT the
end Of this hose n shutter, as shown
at a. Fig. /, is generally placed. In
cold weather this shutter should be
closed, while IL should be open In hot
weather. Most people do not know
the purpose Of this shutter and run
their car with IL open in winter. The
engine will run better and start easier
II 1t Is Kept closed
The manifold and carburetCr are
often heated by hot-water jacketing
them. using the hot water from the
top Of the engine water jackets for
this purpose. Many cars have n valve
placed in the piping Of this water, so
as to DO able to prevent the c,rcula-
tion OF the water thru the iackcc in
summer. This valve is generally
found near the water pump. IL would
be well for owners to be sure that this
valve f. open In winter. Usually It IL
open when the handle is parallel to
the boGy OF the valve.
AS soon as there is danger of frost,
n ncn-1reezing liquid should be put
into the water In the radiator. The
writer likes denatured alcohol for this
purpose.
You can Judge the amount of alco-
hol' to use from the following table:
25 per cent alcohol, rs water, freezes
at zero.
30 per cent alcohol, 10 water. freezes
at degrees below zero.
40 per cent alcohol, GO wate", freezes
at 20 degrees below zero.
In time the alcohol will evaporate
and SO some additional liquid must
be added from time to time. NO rule
can he given for this, as In a ear the
water OF which has n tendency TO
than ono In which the water * COM
para';VCly cool. IL will also eVdpOrat2
quicker in n car which is driven much
than I'm one little driven.
II Is often n good practice TO cover
the lower portion OF the radiator so
as to prevent the passage of the air
thru 1t. If the water in the radiator
tends Ia boil this covering Should be
removed.
Those who are using a heavy oil in
their engine may do well to use a
lighter oil in winter, The heavy oil
by conGcalinE will make the cr,tul,ing
OF II" eAEine difficult. ana SO mako
starting hard.
II ia worth while watching the open
ing oC the spark-plug points in winter.
Doing this Will often prove a help IN
starting the engine. They must not
be open too far.
In cold weather you use UP tho
current In your storage battery mucn
puiCkpr than I'm summer. and IL may
be necessary to have it charged out
side periodically. even tho you did
not find this to be the case during
the warmer months. If the battery
he nearly discharged. 1t will result in
the crg!ne being cranked so slowly
that the suction will be weak ana the
length a time during which the mix
ture comes In contact with the cold
manifold will be comparatively great,
so that the starting will be made more
difficult.