Kohler 7.3E Service Manual

TP-5986 4/03 1Section 1 Specifications
Section 1 Specifications
1.1 General
The 7.3E/6EF and 5E/4EF units are powered by a
two-cylinder, water-cooled, four-cycle gasoline engine
with heat exchanger.
Kohler Co. develops all Kohler marine generator set
ratings using accepted reference conditions of 25_C
(77_F) and pressure of 99 kPa (29.2 in. Hg) dry
barometer. ISO 3046 and ISO 8528-1 include reference
conditions and output calculations. Obtain technical
information bulletin (TIB-101) on ratings guidelines for
complete ratings definitions.
1.2 Engine
Generator Model 7.3E/6EF 5E/4EF
Engine manufacturer Kawasaki
Engine model FD501D
Number of cylinders 2
Cylinder block material Aluminum
Cylinder head material Aluminum
Piston rings 2 compression/1 oil
Governor Gear driven centrifugal
Bore x stroke, mm (in.) 67 (2.64) x 62 (2.44)
Displacement, L (CID) 0.4 (26.7)
Compression ratio 9.3:1
Horsepower, 60/50 Hz 16 13.8
RPM, 60/50 Hz 3600 3000
Lubrication system Pressure; mechanical
Lube oil capacity,
L (U.S. qts) (w/filter)
1.36 (1.44)
Low oil pressure
shutdown, kPa (psi)
96.5 (14)
Oil recommendation (API)
SC, SD, SE, SF,
SG, SH, or SJ
Battery voltage 12 volt (standard)
Battery recommendation,
minimum
260 CCA
Battery charging 15 amps
Starter motor Bendix automotive type
1.3 Fuel
Fuel recommendation Unleaded 87 octane
Fuel pump Electric
Fuel pump operating,
kPa (psi)
13.8--24.1 (2.0--3.5)
Fuel filter inlet hose,
mm (in.) ID
6.35 (0.25)
1.4 Cooling
Recommended coolant
50% ethylene glycol; 50%
clean, softened water
Coolant capacity
L (U.S. qts.) (approx.)
2.84 (3.0)
Thermostat, _C(_F)
91 (195)
Pressure cap rating,
kPa (psi)
97 (14)
High temperature
shutdown, _C(_F)
111 (232)
High exhaust temperature
shutdown, _C(_F)
102 (215)
Inlet water line hose ID,
(
s
e
a
w
a
t
e
r
p
u
m
p
i
n
l
e
t
)
1
9
(
0
7
5
)
(
sea
w
ater pump
i
n
l
et
)
,
mm (in.)
1
9
(
0
.75
)
Outlet water line hose ID,
(
m
i
x
i
n
g
e
l
b
o
w
o
u
t
l
e
t
)
5
1
(
2
0
0
)
(
m
i
x
i
ng e
l
b
o
w
out
l
et
)
,
mm (in.)
5
1
(
2
.
0
0
)
Max. water pump inlet
pressure, kPa (psi)
34.5 (5.0)

Kohler 7.3E Specifications

General

Brand	Kohler
Model	7.3E
Category	Portable Generator
Language	English