El Paso herald. (El Paso, Tex.) 1901-1931, 1913-06-21

spark than the battery system; hence
the difference in the action of -vO11r
motor. Even so, the present condition
probably is that the retard on the
battery system is greater than that
on the magnetic system.
Motoring Department, The Herald
Ny car has not been working as well
this season as last When I am run
ming along at a fair rate using the
aCceleratOr, the cylinders viii not
fire until the speed slackens. so that
{ the engine again takes up the load
When going down hill the same thing
happens. The trouble is not an in
one cylinder, as it splutters at I'M
certain intervals. Can Won tell me-
the cause of this irregularity. and
what remedy would you suggest 10
eliminate the troubles. T. McKenna
All cars manifest symptoms similar
to those you speak of. When your
foot presses the acceleratOr the motor
pulls the car but when you take your
foot off the acceleratOr. the car pushes
the motor. The sudden change in revO-
lutiOns per minute of the motor causes
the effect you mention. In cOastfnE
down hills, the average driver usually
disengages the motor, permitting same
to run idle, while the speed of his car
is controlled by means Of the brakes.
This IS the most ecOnOmical-bOth
from fuel and mechanical point OF
view.
Motoring Department The Herald
How can I test dry cells and also
storage battery in order to ascertain
their condition. I know that in test
ing dry cells an ammeter is used. and
for testing a storage battery a voIt
meter is used, but I do not under
stand why. I know that the capacity
Of batteries is measured in amperes
and volts, but do not understand
ID aHrH HHnsa HHsaHa-
ments to test the two batteries VIII
you please eXplain2-R T. Forster.
A dry cell battery differs from a
storage battery in that the cOnstruc-
ton and chemical action differs. The
internal resistance Of dry cells is com
paratively high, while the chemical
action is rather slow. In a storage
battery the reverse is the case; the
chemical action Of the storage bat
terry is very rapid and the internal re-
SlStance very low When the termi-
mails Of the storage battery are con
nected, the difference in potential be
tween the plates is equalized or in
the dry battery is discharged. Such
a rapid discharge would probably pro-
duce sufficient heat TO burn off the
cOnnectOrs. The resistance OF the am
meter is very low and if connected
across the terminal of the storage
battery would not only Immediately
discharge the battery, but also ruin the
ammeter- For this reason a volt meter
IS used to test the storage battery As
stated above, the internal resistance Of
the dry cells is high and the chemical
action slow, for this reason the am
meter is used to better advantage and
with more correct results. Dry cells
are peculiar in that when approx
mately exhausted the voltage remains
nearly the sane Done cannot test the
true condition Of a dry cell with
volt meter.
Motoring Department. The Herald
Ny car was new in July, 1911 Last
fall had the cylinders ground and
CYernauled- Two weeks ago had
the magnetic OVerhauled, new coil dis
tributOr, etc. Since then the motor has
been very unreliable. The four cylin-
ders seem to fire all right, but there
IS no power / could not ascend a hill
on first that formerly I made easily
on second; after adjusting the carbu
rotor managed TO crawl up. The mo-
tor heats very easily. making the "a
dlatOr so hot that one cannot touch
it. VIII you kindly inform me what
overcome It'll G. NJ
You seem TO have a combination OF
ignition and carburetOr trouble. The
timing Of the spark seems entirely too
late. It is also possible that the valves
are timed late Would suggest that you
1lrst check up the valve timing and
then the ignition timing. With the
magnetic retarded the spark should Oc-
ether words, the circuit breaker should
begin to open at the time the piston
is at top center Of compression This
will permit a sufficient advance action
at higher engine speeds. A light
spark viii cause your Overheating
trouble, and also cause the loss of
power. It is impossible to get q proper
carburetOr adjustment when the spark
is not timed properly.
Motoring Department, The Herald
During the winter bargain days I
bought a second hand car. supposedly
in good condition When taking it
out Of storage for country use the
motor would not start. Have had the
car repaired upon the advice Of my
garage man, but am still unable TO get
the engine TO run on the magnetic.
However, it runs now on the battery,
but rather poorly. Could you suggest
what the trouble may bel. 5. Davis
The trouble seems TO lie with the
ignition, and 1T may be possible that
the spark is not properly timed or
that the wiring is not right 1t is
also possible that the coil is defective
When the condenser Of the coil is i'm
paired IL will obtain poor results
More than likely the coil has been at
fected by dampness. and il is in need
Of a thorough overhauling. AS to the
magnetic, there is very little which
can 90 wrong with IL. except that the
magnets may be weak or the circuit
NnHaraa nn-a-