The Washington herald. [volume] (Washington, D.C.) 1906-1939, 1921-11-20
MOTOR CAR QUIZ
WILL HELP YOU
Questions.


2. What is looping Of an engine
and what causes it?
3. How can you tell IL the insula-
ton of wires leading to the spark
plugs are punctured or porus?
4. Where was the first American
automobile race stagede
8. What is fexibility in an en-
CINE, and how Is il attained?
6. Which is the left and right side
Of an automobile?
Z. What is the ,best way to rem
edy squeak within a cylinder?
8. When work must be done on
shaft or other round piece of metal.
how can II be turned or held firmly
II no pipe wrench or wise is avail
able?
>. What amperage will the aver
age pair of headlights draw from
the storage battery?
10. What timer trouble would
cause irregular firing of an engine?
Answers.
/. Fuses are necessary to save the
wiring or the Insulation from be-
ing burned through in case of a
too heavy charge Of electricity. The
fuses are usually of a softer ma
terial than copper wire. therefore
more easily melt and break the cir
cult. in case of excessive current.
II there were no fuse there would
be many troubles from defective or
porous Insulation or from broken
circuits, caused by burned-out wires
2. Looping Is the speeding up and
slowing down irregularly of an en-
CINE when the throttle is open or
partly open, and is the result of an
air leak somewhere between carbu-
rotor and cylinders. Examine inlet
pipe connections at the engine or
carburetor to ascertain IL there is
not a possible break in the gaskets
at these connections. Looping is also
sometimes caused by too rich a car
buretor mixture. An engine running
in this manner is also said to gallop
}. To tell IL the insulation of high
tension wires leading to spark plugs
is porous, hold the part of the wire
which you think Is damaged against
some metal part OF the car. If the
leaks. the high tension
current will jump through to the
metal against which it is held. This |
should be done while the, engine is |
Misfring at the plug to |
which that particular wire is con-
nected will result. short circuit |
In the high tension winding of the |
ma gneto or coil will give a weak |
spark.
4. The first race between auto
mobiles in America was held in |
in 1895. The length of the
race was fifty-four miles, and six
cars participated. Four of these
were gasoline cars and the remain
ing two electric. A gasoline car
guided by Charles Z. Duryea was
the winner
s. A flexible engine is one which |
will idle down to a very low speed |
on high gear and from that speed |
will have a smooth, quick pickup
when the throttle is suddenly open-
ed. 1t is an engine which will go
slow or fast and will respond to |
every impulse of the driver. To |
have an engine flexible, the car
buretor valve which controls the
gasoline spray must be adjusted to |
a nicely and the air inlet valve |
must be SO set that II will feed |
sufficient air to the carburetor for
high speed. Flexibility
Is almost entirely due to proper
adjustment.
6. To determine the left or right
side of the car always face the
same direction in which the car In
headed. This is contrary to the be-
lief Of some that left and right
sides are determined by standing
IN front Of the car and looking to-
wards Il.
Z. The simplest method OF rem
.dyfng squeak within a cylinder
s TO Introduce oil through the
spark plug openings or relief cock,
new engines are fed
Extra oil through the carburetor
mixture. No matter how the or In
ed. a cylinder which squeaks must
rave oil Immediately as a squeak IL
N indication of dry rings. piston
md cylinder wall Do not ada
more oil to the crank case when
'nly one or two cylinders are drv
Is IL merely means excessive oil
icing burned In the other cylinders
8. II work must be don. on a
ound piece Of metal. such as a
tud or shaft and no wise or min.
wrench Is available. a good sub
titute Is pair OF heavy flat files
round the wide ends Of which II
as'ed loop OF strong wire. tn.
'iece can be Rrasped between IN.
Hes by holding together the loose
nds. A remarkable grin IN the
METAL can thus he obtained.
>. The average pair Of headlights
onsum" about i've amperes of efec-
-irity from the storm "a hstt.~~