Evening star., 1921-08-07

Answers to Last Weeks Questions.
l. Should your car stall while go
ing up a hill it requires quick ac-
tion to hold the car from going down
hill backward and to again bring 1t
in motion to cover the, remainder of
the hill. Immediately the car comes
brake lever. Do this before anything
else is attempted. to hold. the car on
the :lill. Then place thetgears in neu-
tral and start the engine. Keeping
the esemergency, disengage the clutch.
mesh the low speed gears, advance
the hand throttle lever to speed up
the engine. then let up the clutch
pedal until the clutch begins to take
hold. With the engine starting to
pull the car, release the emergency
brakes and slowly let the clutch
pedal in the full distance. The car
will then be going forward in low
is desired retard fully the throttle
lever. disengage clutch and shift
gears to second, speeding up the en-
gine with foot accelerator while re-
engaging clutch. Manipulation of
clutch pedal and gearshift lever must
be done quickly. to prevent the car
clutch is not engaged. Because of
increased load when the car is going
up hill, care must be taken that the
clutch is not engaged too quickly,
also that the engine is speeded up
sufficiently to receive the load when
ing.
2. Early spark and late spark are
merely terms to designate how the
spark is timed by manipulation of
the spark control lever, early spark
meaning spark occurring a tri1e be-
hn hnc linn in Nf
Of each piston. caused by advancing
the spark lever. and late spark mean
ing spark occurring at the beginning
or trife after beginning of power
stroke and-caused by retarding the
spark lever.
8. spark advanced too far for the
rate Of speed at which the engine is
running causes knocking of the en-
gine and connecting rods to break.
It also will cause overheating of the
engine.
i. II an engine with magnetic tg-
milton continues to run after the igni-
tion is switched off. the trouble lies IN
the magnetic ground wire. which may
be disconnected. loose or broken. Some
times a break in the wire may be uh-
noticed because the insulation around
the wire may not be damaged. ~
in the world, according to late registra..
tration figures. and Of this number 81
per cent are in the United States.
6. Many cars which have given
considerable mileage run good at av-
erase or high rates of speed wnen
the engine is pulling steadily, out As
soon as the throttle is closed and the
car speed dies the car runs 3erky:
This is usually caused by looseness
due to wear in the universal 1oints'
the rear axle unit and the transmiS
sion. Play between gear teeth Will
cause a back -and-forth movement OF
the gears at slow speed or when the
car is coasting. Play in bearings
of these units also will be noticed.
and wear in the universals Will not
only affect the running OF the car
7. A scraping sound In a rear wheel
could be caused by sand working In
between brake band and drum, or,
more commonly. by either inner or
outer brake band or parts which
operate them being in contact with
the brake drum.
8. To obtain smooth running without
the spark must be set SO that the
cylinders will not fire too soon at
retarded spark, the high-tension
spark coil must be free from short
circuits, the battery must be In good
condition and we'll charged: contact
points in timer must be clean. nat
and adjusted to the correct spacing.
distributor points should be clean and
not worn. carburetor should be care
warm and there should be good COM
preston in all cylinders. we'll seating
valves being the most important to
good compression. 1t also is neces-
sary to use good spark plugs with
points the proper distance apart. Air