Albuquerque morning journal. [volume] (Albuquerque, N.M.) 1903-1926, 1920-07-18
THE AUTOQU

Answers TO Last weeks Questions.
1.-The purpose of the vent pipe
extending from filler cap to base of
radiator is to carry off overflow CT
water from the radiator, and steam
and water vapor generated when
the cooling system is overheateG.
II this pipe is INSTRUCTED, damage
to the radiator may result, due to
pressure of the steam from the boil
ing water. This steam has no
other free outlet.
almost any insurance agency
will allow a discount for the addi-
ton of lproved bumpers to an in
sured car The usual amount OF
discount is ten per cent of the in
surance premium deducted for the
front bumper and two and one
half per cent for the rear.
3-The angle of taper usually
used for friction surfaces of a cone
clutch is twelve anG one-half de-
grees. This angle is used because
a taper more gradual would tend
to cause the cone to wedge In us
engaging member and cause diff
cult releasing. A more abrupt
taper would cause slipping, unless
very strong springs were used 10
hold the clutch together. Springs
o. the required strength would call
for too much pressure to release
the clutch,
THE first practical automo-
bile engine was invented in France
IN 1887.
5--Jerky operation of the foot
accelerator by beginner Is a COM
mon occurrence. Construct a rest
below the foot lever upon when
the ball of the foot may be placed
Keeping the foot upon this rest to
steady it and applying with the toe
Of the shoe the amount of pres
sure needed Is one way to Vsure
snc other operation.
Eff you find it impossible TO
drive the car out of ruts in a SIP
perry clay road, and the wheels
merely spin in one spot, don't com
tinue spinning the wheels. Olsen
gage the gears or shut off the en-
CINE, jack up the rear end of the
ear and place a flat stone or board
under each wheel, or fill in the
ruts with stones. The wheels will
then gain traction sufficient to
move the car, from the spot. The
use of tire chains would help. DO
not drive on side slope. Keep
in the center of the road.
Tt is not advisable to use
dry cell which shows an ammeter
reading of only amperes. The
| cell of so low an amperage should
be replaced, as it will gradually
become still weaker and be of very
little use.
S-Two advantages of block
casting of water cooled cylinders
are more compactness and q
stronger engine. The engine ran
be made shorter with this cylinder
arrangement. and casting en-bloe
reinforces the engine base.
9-The following parts when
loose will create slaps or knocks
within the motor; Wrist pin, loose
| in piston or connecting rod; too
small a piston, or worn cylinders;
worn or BROKEN piston rings; bent
| connecting rod; worn or loose
crank pin bearing for connecting
rod; crank shaft bearings loose,
worn, or too tight; wrist pin not In
line with crankshaft; valve push
! cd worn or bent, or its guide
worn; bent or sticking valve stem,
worn cams; bent camshaft or It's
bearings worm loose flyWheel'
timing gears worn or loose on
shaft or teeth broken; loose cylln-
ders; loose engine or frame; valve
out of adjustment or valve striking
bottom of gpark plug; magnetic
generator or water pump dtiVe
coupling loose or out of alignment;
fan out Of true. /, Ose, or fan MELT
l0--A good average speed 10
give best results in mileage ana
comfort on trip Is from twenty
to twenty. five miles per hour. En-
coping through towns and COM
munitleS, this rate of speed IS
within the law, and If maintained
continuously as possible will cover
more miles with less wear on the
rnechine than constant opening and
closing of the throttle. Because OF
traffic conditions of regulations, a
driver cannot maintain a high
speed for any length of time with
safety to the car or its passengers
This Weeks Questions.
What is the usual cause OF
loss of compression in motor
2--When an engine eXhausts,
what is the cause of the sharp
noise heard at the end of the ex-
haust pipe, or through the cutout
when open?
3-What is the mileage capacity
of a motor truck during It's entire
life? ;,
4-What is the practical method
usually used in removing the ter.
minal of a storage battery?
5-Of what parts is the auto
mobile engine carburetor composed
and what is the operation?
6-What ignition troubles VIII
cause a motor to knock?
Ton what is the insurance
system for automobiles based as
| figured?
s-Is-a transmission brake OF ad-
vantage in bringing car out Oh
skid? What are methods for stop
| ping skid, which can be used by
| the driver in any car?
J 9-Hcw is quiet operation ODD
tanned in the motor cars peVei
driving gear located at the rear
axle?
1O-Do the driving shafts of au-'
tomobiles require one or TWO
joints? Why are universals neees-
sary?
Copyright, 1920 - Thompson