Harrisburg telegraph. [volume] (Harrisburg, Pa.) 1879-1948, 1914-09-19
NEW CADILLAC IS AN
ElGHT-CYL|NDER
First of Type to Be Marketed This
Side of the Water; 60-H. P.
With V-type Engine

| powered with an eight-cylinder engine
| of the V-type, the Cadillac Motor Car
| Company becomes the first American
manufacturer to develop an eight
| cylinder car for the market, and the
only manufacturer whose latest prod
uct embodies a vital advance in engi-
neering and in motoring
Thus are set at rest the rumors
| which for weeks have presumed to
/ forecast Cadillac intentions and plans.
In the light of past developments 1t
seems only logical that the Cadillac
should be first in the American field
with an eight cylinder car, as a glance
at motor car history will show.
! The first high grade car at popular
price was the original Cadillac Thirty
and this car opened up a new field
to the industry.
For year the Cadillac was the only
car to carry an electric starting and
| lighting system-a feature that has
| become an important part of the reg
! ular equipment of almost every car.
AS the Cadillac statement announc-
| ing the new car puts it:
| This company has never relaxed it's
pursuit of that power principle which
would prove to be ultimate and final
I'VE sought the medium by which
the Cadillac would be endowed, not
with approximate freedom from gear
shifting, or approximately swift ac-
celeration, but with the highest pos
sible form of these three characters
| tics.
The Cadillac Company has given
serious consideration to every reput-
able type of motor-endeavorin to
scrutinize with scientific impartiality
! the virtues and the limitations of each
| and every one alike.
Building and experimenting in
turn. with every type from the single
! cylinder to the six, and from the pop
| pet to the rotary and to the sliding
valve, we have been carried forward
to the highest form of frequent i'm
pulse motor-the V-type eight-clinder.
THE principal advantage of the
! eight-cylinder engine is, of course, its
continuous torque, and continuous uni
| form generation of power. There is
no pause or lapse between power i'm
| pulses, of which there are eight in
! each complete cycle of the engine,
! four to every revolution of the crank
shaft, or one every quarter turn. The
! firing alternates from side to side.
| The continuous torque produces an
almost utter absence of vibration, at
both high and low speeds
w. G. Aston, writing of the V-type
! of eight-cylinder motor in the Autocar
! Imperial Year Book, London, classifes
| its advantages under four heads, viz:
1
| Under the head of size he comments
on the shortness of the construction,
which not only reduces periodic vibra-
| tions in the crankshaft, but affords
more space for body work on a chas-
sis of standard length. No extraordi-
nary length of melt piping is required,
| as the V-form cylinders lend them
selves very readily to a piping ar
rangement that enables every cylinder
! to receive a practically uniform
! charge of gas.
In the matter of weight, the short
ness of the V-type eight again figures,
/ Mr.. Aston pointing out the reduction
: in the length of crank case, the lighter
crankshaft and flywheel short cam
shaft and lighter reciprocating parts
/ because of the comparatively smaller
! size of the cylinder on q given power
| basis.
AS to torque, he shows by illustra-
| tion that the torque of the eight is
/ more uniform and that additional
| cylinders could do no more than in
crease the power.
The author points out that, in the
| cooling system, each block of cylin-
: ders is treated as a unit, and the wa
! ter circulation has no tendency to
! form pockets around the valves.
The cylinder dimensions of the new
Cadillac engine are comparatively
Il
| stroke-yet in repeated tests by dy-
| nomometer, an excess of so horse
power has been registered.
The cylinders are cast in two blocks
! of four cylinders each. with water
| Jackets. combustion chambers and in
take manifold integral The cylinder
| blocks are mounted on the crank case
at an angle of 80 degrees to each
other, from whence the designation.
| "V-type."
! The cylinders are of the L head
| type, with all valves on the same side
of the cylinder blocks.
| There is but one crankshaft, the
| connecting rods of the cylinders op-
poslte each other being Jointly at
! tached One camshaft with eight
cams is employed positioned directly
above the crankshaft, driven by a ST.
| lent chain from the crankshaft and
operating the valves through a series
| of rocker arms provided with hard
ened steel rollers. The exhaust valves
are fiat head type, made of Tungsten
steel, and the inlet valves are tulip
| shape to facilitate the intake of gas.
The crankshaft is 1B inches in
diameter of special chrome nickel al
| 10y steel. supported by reinforced
bronze, babbit lined bearings of lib
eral proportions Its length is but
26 lie inches between the outer ends
OF the forward and rear bearings, thus
overcoming the periodic vibration or
thrashing almost sure to result where
long crankshaft is used.
One of the factors which con-