El Paso herald. (El Paso, Tex.) 1901-1931, 1913-01-11
ASKED and ANSWERED.


Motoring Department. The Herald
I have considerable trouble starting my
engine in cold weather. After I prime
I the cylinders with gasoline it starts at
once, runs for few revolutions and
stops again. Sometimes I have to re-
peat the printing operations several
times before the engine runs well. I
konw it is an accepted fact that en-
Sines do not start well in cold weather,
but would like an explanation
Reader
Cold weather interferes with effec-
tive engine operation in several ways,
chief among which is the fact that it
prevents rapid VapOrizatiOn of the
fuel Printing the cylinders will natu-
rally introduce gas directly into the
cylinders This will produce one ex-
pIoslOn at least in each cylinder, and
as soon as the cylinder becomes warm
the mixture from the carbureter will
do its work.
Motoring Department, The Herald
Ny engine runs on all four cylinders
regularly, but does not seem to have
as much power as il had. viii you
please let me know some of the things
that might cause such a condition -
L Turner
The most common cause is Door COM
preston in the cylinder. If the car
buretor is adjusted to give either too
rlch OF too lean a mixture loss Of
power viii result. Should the bearings
trouble VIII result, due to the addi-
uonal friction, as it will also do when
the clutch slips and does not transmit
TO the rear wheels the full engine
power Brake rods sometimes get out
OF adjustment, causing the brake bands
TO rub on the drums of the wheels.
even when the brake is not applied
Motoring Department The Herald
IS II true that more power can be OBJ
tanned hr~r
m4IIIer cut-out, and if so, why2-LL J.
es, a muffler cut-Out will give an
engine more power. There is more or
less back pressure to the exhaust
gases in passing from the cylinders.
During this operation the piston acts
as a plunger 20 force the gases out. I
II the cut-Out valve is opened or the
muIIler removed entirely. the exhaust
gases nave more free exit and there
IS less back pressure on the piston.
however, there is no particular advan-
tage gained by using the cut-out valve |
when the engine is running slowly. At /
hlsh engine speeds and heavy pulling /
When the throttle is wide open, a dis /
unct increase in power can be noticed |
upon opening the cut out
motoring Department, the Herald
one OF the coils was soaked with wa
ter the other day and since that time
II VIII not work, although tried diff
1ere MT adjustments Of the vibrator
What can do with such a coiI2-
Owner.
Nothing viii deteriorate a high ten
sion coil more rapidly than the pres
ence of moisture in the winding Wa
ter IS good conductor of electricity.
ana when the insulation Of the secon-
1ary becomes soaked the current short
circuits. The primary winding is not
as sensitive as the secondary winding.
Tue 70 the voltage being much lower
A COIL affected by moisture cannot be (
except by those experienced.
Motoring Department, The Herald
The No. coil on my car buzzes all (
ne time when the switch is turned I
IN The engine will not run we'll and I
Tres hack into the carbureter. The !
'ther three coils work all right-C. X. |
The No coil buzzing continually I
lndlcates that the wire leading from 4
that coil to the timer is touching 1
the metal work of the engineer at !
some point or the corresponding num-
oered contact piece of the timer is not I
properly insulated from the metal Of /
the engine.
The trouble can be located by re-
moving the No. 2 wire from the timber /
while the ignition switch is turned /
N. If the buzzing stops. the contact
s not insulated, but il the buzzfng
continues examine the insulation of
he wire leading from coil to the timer |
n order to see If 1t is touching the /
METAL work of the engine.
A coil that buzzes all the time will I
reduce constant spark in the cyIin-
ter- When the fresh gas enters No.
cylinder from the carburetor it ig-
ites, and on account of the intake
alive being open, it turns back into
he intake manifold and mixing
hamber of the carburetor, causing the
ack firing you mention.