Installation manual
80N4
SPECIFICATIONS
Engine
Type
Aspiration
Govemor
Bore
&
Stroke
Piston
Displacement
Firing
Order
Direction
of
Rotation
Engine
Torque
Compression
Ratio
GENERAL
Diesel,
four
cylinder,
four-cycle,
marine
engine.
Vertical
in-line
overhead
valve,
water
cooled
direct
injection,
80
hp
@
2500
rpm.
Naturally
aspirated.
Integral
with
injection
pump.
4.02
x
4.65
inches
(102.0
x
118.0
mm).
262
cubic
inches
(4.3
liter).
1-3-4-2.
Clockwise,
when
viewed
from
the
front.
210
ft-Ib
@
1500
rpm.
17:1
Dimensions
-
inches
(mm)
Height
32.0
inches
(813
mm)
(645mm)
(1168
mm)
w/out
transmission
Width:
25.2
inches
Length:
47.2
inches
Weight
(dry)
971
Ibs
(440.8
kgs).
TUNE-UP
SPECIFICATIONS
Compression
Pressure
(Limit
of
difference
Injector
Pressure
Valve
Seat
Angle
Valve
Clearance
(engine
cold)
Engine
Speed
General
Operating
Temperature
Fresh
Water
Pump
Raw
Water
Pump
Coolant
(Fresh
Water)
System
Capacity
Exhaust
Elbow
Exhaust
Hose
Size
441
psi
(31
kg/cm')
at
200
rpm
Not
to
exceed
28.44
psi
(20.0
kg/cm').
2133
psi
(150
kf/cm').
Intake
45°
..
Exhaust
45°.
Intake
and
exhaust.
0.Q16
inches
(0.40
mm).
Idle:
600
-
900
rpm.
Cruise:
1800
-
2200
rpm.
Max:
2400
-2500
rpm.
COOLING
SYSTEM
Fresh
water-cooled
block.
thermostatically-
controlled
with
heat
exchanger.
170
-190° F
(77
-
88°
C).
Centrifugal
type,
metal
impeller,
belt-driven.
Positive
displacement,
rubber
impeller,
engine-driven.
17
US
Qts
(16.1
liters).
EXHAUST
SYSTEM
45°
elbow
4"
I.D.
(101.6
mm)
hose
ENGINE
AIR
REQUIREMENTS
Combustion
Air
150
cfm
Note:
The
pressure
differential
between
the
outside
of
the
engine
compart-
ment
versus
the
inside
of
the
engine
compartment
should
not
exceed
2
inches
of
water
(51
mm)
at
full
open
throttle
(measure
with
a
manometer).
General
Fuel
Fuel
Injection
Pump
Fuel
Injection
Timing
Nozzle
Fuel
Filter
(on
engine)
Air
cleaner
AirFlow
(engine
combustion)
Fuel
Consumption
FUEL
SYSTEM
Closed
system
with
bleed
points.
No.2
diesel
oil
(cetane
rating
of
45
or
higher).
BOSCH
Model
A
type
(In-line).
WBTDC
Multi-hole
Full
flow
replaceable.
Replaceable
paper
element.
150
efm.
4.7
U.S.
gph
(17.8
Iph).
ELECTRICAL
SYSTEM
Starting
Battery
Battery
Capacity
DC
Charging
A1temator
Starting
Aid
Starter
DC
No-load
Current
DC
Cranking
Current
12
Volt,
(-)
negative
ground.
750
-
900
Cold
Cranking
Amps
(CCA).
51
Amp
rated,
belt-driven.
Glow
plugs.
12
Volt,
3
KW.
±
2%
of
rated
amps.
400
CCA.
LUBRICATION
SYSTEM
General
Oil
Filter
Sump
Capacity
(not
including
filter)
Operating
Oil
Pressu
re
(engine
hot)
Oil
Grade
General
Gear
Ratio
(Standard)
Gear
type/pressure
circulation.
Full
flow,
paper
element,
spin-on
type.
14.5
U.S.
QIs
(13.8
liters).
25-85
psi.
API
Specification
CF
or
CG-4,
SAE
30,
10W-30,
15W-40.
TRANSMISSION
(HURTH
Standard
Transmission)
Case-hardened
helical
gears,
hydraulically
operated
multiple
disc
clutch.
2:00:1
(Hurth
45A)
or
(Hurth
63A)
Propeller
Shaft
Right
handed-standard
transmission.
Propeller
Recommendations
22x16
P-2
blade
or
22x14
P-3
blade
(using
standard
propeller
should
allow
the
engine
to
reach
its
full
transmission)
rated
rpm
(2500
+
000
-100)
at
full
open
throttle
while
underway
in
forward
gear.
Lubricating
Fluid
Dextron
III
Transmission
Sump
Capacity
Hurth
45
2.13
US
qts
(2.0
liters)
approximate.
Engines & Generators
48