The Glasgow courier., 1915-12-10

facing. In the former case an app1ica
ton Of fuller's earth should be made.
and in the latter new facing must he
applied.
What is live axle and what is its
advantage over other types?
4 live axle is one which is a part in
the transmission of power and hence is
in motion during the time the power is
transmitted. 1t Is the opposite of
dead axle, which merely has the func
ton Of carrying the wheels and which
does not revOlve with them. With q
dead axle it is necessary to get the
power back 20 the wheels by means Of
chains, whereas with the live axle the
more silent shaft drive can he used.
My car vibrates greatly at speeds
above twenty miles per hour. Is there
any way Of reducing it7
This is largely a question Of bring
ing the reciprocating parts to the same
weight. Remove the pistons and the
connecting rods, weigh all the pistons
with the wristpins and remove metal
from the heavier ones until they are
all the same weight.
How may one tell whom the STORAGE
battery is worn out7
A battery may be said to be worn
out through service when the active
material of the plates has fallen to the
sediment trap ut the bottom Of the
jars. A battery in such a condition
will not take n charge and cannot pos
sibly give service. \ battery may be
worn out prematurely by improper
care and undercharging, causing the
plates to lose the active material, to
buckle, etc.
What are tho advantages and disad.
vantaees Of the two, three and five
bearing crank shafts? Is a two bear.
ing crank shaft sufficiently strong to
take care Of the strain It is subjected
to for any length Of timer
The five bearing crank shaft is not
necessarily better in every respect than
either the three or two bearing shaft
in four cylinder motor, although it
will be less liable to whip, due to its
rigid mounting. You will find that the
four cylinder. five bearing motor usu-
ally, if not always, has it's cylinders
cast separately. thus making COM
paratively long shaft and motor. With
a long shaft the points OF support must
naturally be many to obtain rigidity
and it would not do for n very long
motor to have two bearing shaft, al
| though some have three large supports.
The motor design then plays a big
part in the number of bearings to sup
port the crank shaft. The small block
motor with two bearing crank shaft
shows good results and the block and
pair cast motors with three bearing
shafts are also showing up we'll. TAX
ing the small block motor. any increase
in the number Of bearings adds to the
frictional loss and to the cost and de
tracts from its simplicity. The bearings
| usually used in this type are made long
| to give good service. However. in two
motors exactly the same in every re-
spect but crank shaft support and one
with two and the other with five bear
ings. the latter will in most cases show
longer life than the former.
II two engines Of the same make and
| model were set in the Same frame, one
ahead Of the other, would the rear
crank shaft be strong enough to stand
the strain?
The rear crankshaft would have to be
strong enough to transmit the horse
| ~ hn
especially true If the timing was so ar
ranged that the power strokes Of the
IwO motors We're synchrOniZed so that
the minimum stress from both motors
fell upon the shaft at the same time
In such case as you mention heav.
Ter crankshaft should he installed in
tho rear motor.
Ny car smokes badly and has used
one gallon Of oil in 100 miles. It has a
splash fabrication system. What is the
trouble, and how can remedy III
When a splash system smokes the
trouble can generally be put down to
either too high level in the splash
trough, too deep dipping of the con-
Meeting rods or bad piston rings The
first two amount to practically the
same thing, because if the level of the
oil is too high the connecting rod is
sure to dip too deeply into the oil. and
hence the effect is to splash too much
oil to the cylinders When the piston
rings are faulty the oil leaks past the
rings, and after it reaches the COM
bustion space is burned in large guam
titles, thereby causing the smoking
and sooting. The proper course for
you to pursue is first to determine the
proper level in the crank case.