Plentywood herald. [volume] (Plentywood, Mont.) 1908-current, 1930-01-09


around performance with added pow
er, and faster accelerations are an
%nounced as features of the new line.
Larger tires, small wheels, Delco-
Lovejoy hydraulic shock absorbers
at all four wheels, Fisher slanting
non-glare wv windshield and vastly
improved four wheel braking system
are some of the highlights.
Brakes are of internal expanding
"articulated shoe type" both front
and rear those on the front wheels
having two shoes while those on the
rear have four. These brakes, also
are fully enclosed giving perfect pro-
lection against water and dirt.
The brakes represent an innova-
ton not Only in the Chevrolet line
but in the entire passenger car field.
The length of service that these lin
ing give in the new design Chevro-
let brakes is second to none. The
brakes may be adjusted without the
removal of any plates from the brake
drum and operate with equal effici-
ency on all four wheels. The brake
drums are 11h inches in diameter.
The emergency brake is an indepen-
dent unit operating on the rear
drums. A method Of construction
known as the "articulated shoe type"
assures uniform braking under all
conditions of temperature. Tests at
the General Motors Proving Ground
show that the new brake will stop a
a travelling thirty miles per hour in
two and two tenths seconds within
4S feet.
The attractive new closed bodies,
in a variety of c%olors, carry the fam
Gus Fisher stamp of craftsmanship.
Eight models, three of which are new
to Chevrolet comprise the line. OF
the eight, five are closed cars am
three are open. The closed cars are
the sedan, coach, coupe, sport coupe
and club sedan. The new open mo-
dels are the roadster, sport roadster
and phaeton The models new to the
line this year are the sport coupe,
| sport roadster and club sedan
The six cylinder valve-in-head en-
CINE introduced a year ago, after
years of research and development,
has been further improved and re-
fined. Since the introduction of the
| six a year ago, test cars have run up
more than a million miles Of driving
at the General Motors Proving
ground in the working out and the
justifying Of the improvements found
in the 1880 car. All the resources
Of the General Motors Research La
boratories and the Chevrolet expert
mental laboratory were placed at the
disposal of the Chevrolet engineering
staff in this work.
Working with Chevrolet's chief en-
gineer, were General Motors engin-
GERS and Proving Ground engineers,
with Is Chevrolet engineers assist
ing their chief in supervising the de-
velopment and refinement of the i'm
prove dsix cylinder motor found in
"the greatest Chevrolet"
The result Of the efforts of this
engineering talent is a smoother,
q%uieter, more powerful motor. The
new engine, fully enclosed, with a
high compression non-detonating head
develops SO horsepower.
The brake horsepower has been in
creased over the entire speed range.
At 1000 revolutions per minute 24.5
horsepower is developed and the
maximum of so horsepower is attain
ed at $500 revolutions per minute.
This increase in power insures a
marked improvement in acceleration
and hill climbing ability. At normal
driving speed the new engine de-
velors many times the power re-
CURED to drive the ar. Specifically
the rear axle has been redesigned
while the differential unit has been
strengthened and is oiling system re-
designed to insure long life and quiet
operation.
Smoother operation of the engine
and longer life are assured through
| the use of light weight pistons. Steel
backed crankshaft bearings have
been adopted because they are more
durable.
The oil pump has been increased in
capacity and improved in efficiency,
while the carburetor has been improv-
ed in respect to both it's ac~celerating
pump and jet size. The ~accelerating
pump has been increased in length and
reduced in diameter. This improve
ment also helps the acceleration per-
Torrance by increasing the duration
of the spray.
The same sturdy AZ pound crank
shaft which proved so satisfactory
during 1929 has been retained in the
new car and a further contribution to
smoother engine operation improved
distribution and increased economy
has been made by the new intake and
exhaust manifolds of the heated T
design.
Tho oir o1oo~or loc 49, .---..z.