The producers news. [volume] (Plentywood, Mont.) 1918-1937, 1928-01-06
BIG new CHEVROLET
KINDLES ENTHUSIASM
Manv New Features Added to Well
Known Automobile With Drop In
Price.

Wildfire enthusiasm kindled thru
out the country last week when the
new Chevrolet line for 1928 went on
display took particular account of the
manv mechanical innovations embodi-
ed in the new car.
Thousands who viewed the new mo-
Il els noted that the wheelbase was in
creased and bodies made roomier and
more beautiful, also that the mechani-
cal features had ben developed to 2
measure heretofore unknown in tbe
low price class.
Outstanding developments in the
engine and chassis that received wide
spread endorsement were the increas-
ed speed and power of the new car,
easier steering -four wheel brakes of
new design, shock absorber springs
marking advanced trend toward rid
ing comfort, and smoother engine per-
Torrance.
The last mentioned feature was
achieved by the use of constant clear
ance alloy "invar strut" pistons which
make for smoother and more efficient
motor performance. Further contri- |
buttons toward this end were gained
by raising the compression ratio and
by stepping up the valve lifts. Thru
these changes maximum power is de-
veloped.
Other changes in the engine are the
addition of breathing system to elm
mate the annoyance of engine fumes;
new two-port exhaust, and silenc-
ing engine enclosure.
The four wheel brakes are of non
locking design-the product of Chew
rolet laboratories plus the facilities
of General Motors laboratories and
proving grounds. Front brakes are
two-shoe unenergized Intervals, wolfe
the rear brakes are the energized ex-
ternal, self wrapping type. Each
brake has an individual adjustment at
the wheel, and STOPS have been pro-
vided to make the adjustment process
especially easy. Easy initial pedal
application throws the front brakes
into action. Further application
throws front brakes harder into action
and also brings the rear brakes into
full play, so that it is possible to slide
the rear wheels on dry pavement by
using full pressure but not the front
) wheels.
, The effect of this according to
Chevrolet engineers is to get uniform
wear on the brake lining.
The springs also are of extraordi-
} nary interest. Realizing that all un-
comfortable spring action is the re-
suit of rebound after striking bump,
Chevrolet engineers set about to in
crease the friction of the springs and
thus check the rebound.
This end was achieved by equipping
the springs with special rebound
! checks. Two are on each spring To-
Gated half way between the center
2 spring shackle and the spring end.
5 These rebound checks are inverted
bow shaped steel leaves. assembled
under high pressure against the top
OF the spring leaf, the ends pressing
against the top of the leaf, increas-
ing the resistance.
So much has the spring friction
} been increased by this new device that
4 the car is said to ride so per cent
l better than with old type springs. The
rebound checks also offer greater re-
a sistance to bumps.
S Greater ease of steering was made
4 possible by adopting a ball bearing
] worm and gear steering mechanism
e including ball bearings in the steer
] ing muckles, and by increasing the
Y steering ratio from to 9.5 to 1. The
: four inch increase in wheel-base con.
e tributes greatly to the riding quality
OF the car, with less pitching and bet
Y ter road holding ability.
t The front axle has been enlarged
|. and strengthened to accommodate tn,
e new brake attachment. A fan shrouC
e has been added for more efficien
= cooling, and host of other details
n combine to make the Chevrolet fo
S 1928 the best performing, most eff
p Gent and dependable mechanical uni
ever built bY the company.