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

rumble or minor vibrations and rem
ders the a extremely pleasant to
drive.
The enigne mas a 31-4 inch bore
with a 8 7-8 stroke and a displace-
ment of 1875 cubic inches. 1t de-
velops 65 hoi sepower at 340O R. P. M.
and 1876 #. lbs. torque at 1900 R. P.
M. The maximum horsepower is de-
veloped at a car speed of 70 miles
per hour which makes it obvious that
under favorable circumstances with
a light a and a favorable wind, a
speed of rs miles an hour can be OBJ
tanned.
During the course of the perfec-
ton of this new engine, tests runs in
excess of 5000 miles at speed of so
miles per hour were made without
any necessity for valve replacement.
The large size of the valves and the
relatively large bore permit the entire
entire encircling of the valve seat
with cooling water so that valve tenn
peratures are held at the low end,
still further reducing any tendency to
burn.
In the manifoding, the exhaust is
set above the intake and a percentage
of the exhaust gas may be DETECTED
| around the head of the tube which
leads the gas to the intake manifold.
This is brought about through a man.
ually controlled heat valve operated
by a Bowden wire plunger on the in
strument board. This provides min
imum gas temperatures for maximum
work and high temperatures for the
warming up period and is especially
desirable in the cold winter months,
Engineers point out that while this
device is entirely new to the field Of
low price skies, it is essential for the
maximum of performance and econ
omy.
The combustion chamber in the head
is designed to give maximum power
output and at the same time to re-
duce to a minimum defamation that
might normally be expected from SC
high a compression.
Forced Feed fabrication
Because of the high speed Of this
car, there is necessarily required 6
highly developed lubricating system
which is entirely different from any
type used heretofore on Willy-Over.
land low priced cars.
Each connecting rod is provided
with squirt holes in the big end tt
throw a we'll directed stream of OF
onto the thrust side of the bore ant
thus adequetly Intricate piston ant
bore. The rear main bearing is pro
viied with a return groove and an OF
throw helix which carry the return
oil into the bearing cap and from tn
thence into a tube which carries it tt
the lowest part of the pan.
Another feature of the lubricatint
system is the employment of crank
case ventilation so that any blow-b,
and resulting pressure in the crank
shaft will not cause in oil fumes o
wastage. The ventilation is at tn
the rear of the engine and ventila
ties from the valve tappet gallery.
Oversize Tires Are Used
The instrument pencil contains, il
addition to the coil lock and gasolin'
guage, s~peedometer, oil guage, am
meter, heat control, spark control
throttle and choke. There is an in
dependent three-way switch on tn
instrument panel which either light
or extinguishes the dash and dom
lights.
The wheel equipment includes 20
500 this size being deemed advisabl
in view of the speed and ~accelera
tion of the car, to provide the maxi
mmu of safety and endurance.
The economy Of the a has bee
worked out SO that the highest econ
omy is obtained at the modern cruis
ing speeds between 35 and As mile