Evening star. [volume] (Washington, D.C.) 1854-1972, 1932-06-12

When they can rubberize necks and
pocketbooks the world will be made
safe for motoring.
If you have been dreading the idea
of breaking in new Car and OF taking
all the criticism Of the man drivers
who claim you're holding up traffic by
driving along at Is or 80, Danish the
fear Immediately. BY using the free
wheeling unit you can give the car
short bursts of speed and then coast,
thereby raising your average without in
any way injuring the motor. In fact,
this treatment is recommended as
beneficial to a stiff motor.
buyer of one of the late 1881 cars
Is keenly disappointed because there is
considerable vibration at speeds around
30 miles per hour She breads the sit
uation after breaking it in and starting
to drive faster There's some more
good news She will discover that the
car is free Of this annoyance at road
speeds of IS or 40
Can you tell me how to steer gu, of
the driveway so as not to run up on
the lawn or scrap2 against the house
when backing?" asks woman who fol-
lows these weekly suggestions.
Easy enough. Stop steering. Watch
the experienced driver and you will note
that after setting the wheels in a
straight position she backs up and sim
ply holds the wheel still The drivers
who steer this way and that are the
ones who have the difficulty.
The woman who is accustomed TO
taking dress goods over to the window
to see the shades in the daylight uSu-
ally makes a good selector Of car colorS
today. She asks to see the car in the
daylight and often finds that her first
impressions were wrong. Some SEEM
ingly drab cars take on class when put
under natures spotlight. Others that
look smart under poWerhouse light are
disappointment when taken into the
great outdoors. Daylight makes a diff
ference.
Now that mats are used almost eX-
clusively for the covering of the floor
in the drivers compartment, it is we'll to
place a piece of card board over the mat
when leaving the car to be washed.
Many automobile men use this plan
with their demonstrators and save q
lot of mat cleaning as a consequence.
I am reminded of the woman who
couldn't seem to grasp the idea of how
Gluten plates worked ana why tNey
should wear out. wiling but some
what tactless gentleman picked up two
OF her best dishes and pressing them
together, made them slip little. 1t
explained how the pressure plates made
clutching or connecting actlon-and
also showed by the scratching of their
gold edges why plates wear out!
Now that women are getting down to
the real technique of car Buying many
are finding it a bit puzzling to COM
pare such matters as piston displace-
ment and compression ratio when they
do not know what these terms mean.
Probably few misunderstanding terms
are more simple.
Displacement refers to the space
within the cylinders which is displaced
by gas vapor when each piston travels
down to the bottom of its stroke This
can be measured automatically by
multiplying the diameter OF one of the
pistons by the length of its travel tits
siroke). multiplied. in turn, by the
number of cylinders.
The displacement does not include
the space above the pistons and under
the cylinder head or around the valves
Displacement is rough guide to en-
CINE size, but Is not always proper
tional to power output. Compression,
the arrangement Of the valves. the type
OF the motor the way the fuel is taken
in and many other things combine to
determine the motors performance
The compression ratio is simply the
relationship between the total space
inside one Of the combustion chambers