El Paso herald. (El Paso, Tex.) 1901-1931, 1920-05-08


What would cause low or re-
verse speeds Of a planetary trans
mission 10 engage improperly
2-WIu too rich a fuel mixture aid
IN overheating the motor2
3.-Do changes in rear axle gear
ratio alter the horse power OF a
motor2
4-How is the circulation OF water
maintained in the thermo-syphon
cooling system2
5.-What Is a cause OF abnormal
discharge" reading on the ammeteT
Of an electric system2
s.-What is a double ignition sys-
What is meant by angular load
eLerted on a bearing2
s.-What viii cause the car TO pull
hard or run slowly, although the en-
CINE is all right2
9.-Name six causes for explosions
IN the inlet pipe or carburetor.
10.-How is piston speed deter
mined?
Answer to Last Weeks Questions
IA grinding noise in the rear
axle when the car Is in motion IN
dicates too deeply meshed gears. or
lack OF lubricant at these parts
Gears out Of alignment as the result
Of wreck viii also create a grind
ing sound.
5.-The radiator Of thermo-
syphon cooling system usually diff
fers from that Of the forced circula-
ton system in the construction Of The
small tubes or water passages OF the
syphon system is usually constructed
with passages OF larger volume than
that Of the forced circulation sys-
TEN.
told by the dash indicator as fol-
lows. II the indicator reads dis
charge" with lights turned off and
motor not in operation, the usual
cause is a short circuit at some point
in wiring, such as barred wire in
contact with frame or other metal
part Of the car: when the indicator
does not show charge" with engine
speeded up, but reads discharge
when the engine Is at rest and the
lights are turned on. the generator Is
at fault and is not producing suffi-
cieut current. When the indicator
does not show discharge" with
lights turned on and engine not run
ming. and does not indicate charge"
when the engine is accelerated. there
is an open circuit, such as a broken
wire. a loose connection. loose or cor
roded battery terminals or a poor
generator connection
"A one unit electric system Is
system which performs the functions
Of starting lighting. charging and
igniting without one motor generator.
It has a timing and current distrib-
uting device for ignitinE the gas
charge in the cylinders As a motor
this unit cranks the enEines with the
engine in operation. & is driven as
generator charging-the storage bat
tery. supplying current for the lights
and by means OF a timer and dis
tributor iguiting the gas charge in
the cylinders,
Brakes which continue to slip
when applied after ing frightened
10 remedy the condition. have either
worn fabric. oil on the braking sur
face or the heads Of the rivets. which
hold the braking fabric 70 the brake
band. are flush with the surface OF
the fabric and prevent it from grip
ping sufficiently.
6.-Some common causes OF rattles
beneath the car are wear in the rad
ius or torque rods. loose braking
bands OF rods, worn connection in
gear shift levers or rods, or play at
the spring shackles.
End thrust on a bearing means
the force eLerted parallel TO the shaft
on which the bearing IS carried.
S.-A knocking or clicking sound
IN the universal joint is caused by
wear in the connecting pins on
which the two members OF the uni
versal oscillate or move
9.-The cause Of a heated planetary
gear case IS lack Of oil between
bearing surfaces Of the transmission
or by either binding or slipping
brake bands.
10.-Gear ratio OF the rear axle can
be ascertained by dividing the num-