Milford chronicle., 1955-09-16
Mercury Introduces New
80 III. P. OutbOard

81 II. +. OulDOdTu u
The first of the new line Of 1856
Mercury outboard motors was an
nounced today by the kiekhaefer
Corporation of Fond du Lac Wis
consin.
The model is the all new Mark
80, an alternate firing four-in-iine,
all die cast engine of 80 cubic in
ches of piston displacement rated
at 80 II. r.. and weighing only Ito
lbs. complete with steering handle
and synchronized twist grip tbrot-
lie.
Aimed specifically at the increas-
ing market for versatile engines
that meet the vary demands of to-
days modern outboarders. the new
Mark 80 is capable of a wide range
of speeds - it will troll a fisher
man as slow as a turtle, yet 1t has
a tremendous reserve of power for
water skiers and will plane of a
runabout at over 80 m. p- b.
The new Mark 80 will be pro-
duced in three different versions
=. manual starting: with the ex-
elusive II volt MercElectric start
er and generator, and VIII also
be available with a Quick Silver
lower unit for competition
A tremendous power and safety
reserve has befsl incorporated in
the new Mark 80. With its four
cylinder,in-line construction mod
ern high compression, and light
reciprocating parts firmly position
ed by a rigid all die cast erankcase
and cylinder block, the engine
fhrives on high r. p. NJ, and ac-
tually gets its second wind at a
point where the ordinary outboard
is ''red lined. The net result is
a smooth, quiet power flow. and
q much greater life span at ordin-
airy cruising speeds. Engine speeds
up to 10000 r. p. NJ, have actual
" been observed In dynamometer
test.
Exceptional isolation of engine
vibration and noise has been
achieved by the new improved Dy-
na-Float suspension,a using shear
type mounts with new wider
mounting span. In addition, a sound
absorbing blanket is wrapped COM
pletely around the power-head to
cut off power-head noise without
power restriction.
A fully waterproofed, dirigibly
mounted, integral aircraft type
magnetic provides the ignition for
the new Mark 30. In contrast to
ordinary fiywheel magnetoes that
require pullers and disturb tapered
parts which require careful torqu-
ing, the new Mark 30 magnetic can
be replaced in a matter of minutes,
or be removed for service by simp-
ly locsening three cap screws E. /.
without disturbing the timing.
Shear pins have been eliminated
by the use of the new Flo-Torq
propeller drive . an important
safety feature. An unbonded rub
ber bushing is loaded enough 10
drive the propeller, yet IL slips on
IMPACT should the blade strike an
obstruction.
In addition. the new Mark 20 in
corporates all of the field proved
Mercury features Full Jeweled
Power" means antifriction ball and
roller bearings on the crank shaft.
connecting rod crank and wrist
pins, drive shaft and propeller
shaft.
Waterproofed ignition. a feature
pioneered by Mercury. is standard
the Uni-Cast one piece gear
case seals the lubricant in. and the
famed Mercury Vari-Timed Valves
buried deep in the crank case for
quiet operation, are automatically
timed correctly for every engine
speed.
Early reports from dealers in
the field bear out the claims for
the versatility of the engine. How
ard, Michigan distributor of the
Company, was enthusiastic about
the turtle pace" trolling and ski
pulling ability of the engine and
said. "Once again. Mercury has
produced a new concept of out
board power"
Following the automobile trend
toward more cylinders, the Kick
haefer Cooperation, pioneers in
multi-cylinder construction in mod
eEn outboards, decided TO build the
Mark 30 in four cylinders rather
than as an oversize twin. The Com
many has produced over two mill
Eon horsepower OF four cylinder
engines, and their field record of
smoothness. performance. durabili-
ty and starting ease is without
equal in the outboard industry.
Once again. progress in out
boards is pioneered by Mercury.
MARK so priced S479.50. II Volt
MercEiectric Starter and Generator
x125.o0 Extra, r. o. b. Fond du Lac,
Wisconsin.