Aberdeen herald. [volume] (Aberdeen, Chehalis County, W.T.) 1886-1917, 1916-09-15
Expert Advice For the
Automobile Owner
Queries and Replies Covering Matters Of
Importance to the Man Who Runs q Car

Please toll mo the particulars 70.
sardins the work Of an engine in on
automobile and explain the running Of
an automobile motor from the time Il
10 started until IL has stopped.
There is nothing very complicated to
the automobile engine. From the time
1t Is started until 1t Is switched off at
the end Of the run the following CD.
erations take place:
The engine is first cranked. In the
older cars this Is done manually by
turning a hand crank on the end Of
the crank shaft. In the modern en-
CINE the cranking Is done mechanical
ly by an electric motor. The starting
switch Is closed. allowing current to
flow from the storage battery to the
starting motor. This motor is in en-.
gagement with the crank shaft of the
engine, and as It turns over, due to
the electric current from the storage
battery, 1t cranks the engine. During
the cranking Of the engine the down
ward motion Of the pistons on the
suction stroke draws air into the car.
buretor and gasoline from the car
buretor jet. These mix in the mix
ing chamber of the carburetor and
pass into the engine through the in
take valve. The next stroke com.
presses the charge in the cylinder,
and when the piston reaches the top
Of the stroke spark occurs. due to
the electric ignition apparatus operat-
ed in connection with the engine.
The spark explodes the gas COM
pressed in the cylinder, which causes 1t
to exert pressure due to its quick ex-
pansion upon the head Of the piston.
pushing the piston down toward the
crank shaft. The crank shaft Is con.
nected with the clutch, and then the
drive passes back through the gear
box, drive c"r"' :Nd ax!eS to the
wheels. Once the first explosion has
occurred the action Of the engine after
that becomes automatic, and necessity
for the cranking medium ceases to ex-
list. While one cylinder Is exploding
another Is taking in fresh charge in
the multicylinder engine. The action
Of the four cycle engine as used in
automobiles is to draw in the gas on
one stroke, compress it on the succeed
ing. explode It on the next and exhaust
It on the last. The drive is from the
piston to the connecting rod and then
to the crank shaft. Geared to the
valve and the auXiliaries. such as the
generator. ignition distributor. unit.
etc. All motion Is stopped as soon as
the ignition is switched off. stopping
the gases when exploded.
10 tho oxygen decarbonizing system
successful and will Il affect aluminium
pistons or piston rings?
The oxygen method of removing car
bon is successful. It will not harm
aluminium pistons, since the action.
after the burning has once started. is
catalytic and local. The instant the
carbon Is burned Off in a certain local..
ty the combustion in that area ceases.
I have heard a great deal regarding
The low gravity gasoline we are get
ting nowadays and should think II
would affect the operation Of the mo-
tor. Is not this the case, and. If 80.
what are the effects?
The present low gasoline contains
large amount Of kerosene and less vol.
atile oils. This. passing into the motor
while it is cold. passes the rings and
the pistons and apparently condenses
and mixes with the oil in the crank
case. Such a condition will naturally