Mercury Optimax 150 User Manual

DIRECT FUEL INJECTION
Page 3B-50 90-855347R1 JANUARY 1999
Air Compressor Flow Diagram
ÎÎ
ÎÎ
ÎÎ
ÎÎ
56150
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
j
j
j
j
j
l
w
a
b
c
d
e
f
g
h
i
j
k
l
m
n
o
p
q
r
s
t
u
v
w
j
j
j
j
j
l
a-Air Inlet
b-Air Filter
c-Compressor Air Inlet w/Inlet Restrictor
d-Air Compressor
e-Compressor Air Outlet
f-Compressor Water Inlet
g-Excess Oil Return
h-Compressor Oil Inlet
i-Fuel System Pressure Test Valve
j-Fuel Injector
k-Starboard Fuel Rail
l-High Pressure Fuel [89 ± 2 psi (613.5 ± 13.8
kPa)]
m-Tracker Valve
n-Fuel Inlet
o-Fuel Regulator [89 ± 2 psi (613.5 ± 13.8
kPa)]
p-Air Regulator [79 ± 2 psi (544.0 ± 13.8 kPa)]
q-Air [79 ± 2 psi (544.0 ± 13.8 kPa)]
r-Excess Air Return to Exhaust Adaptor Plate
s-Port Fuel Rail
t-Excess Fuel Return to Fuel Cooler
u-Air Pressure Test Valve
v-High Pressure
w-Low Pressure

Mercury Optimax 150 Specifications

General

Horsepower	150 HP
Engine Type	V6
Alternator Output	60 amp / 756 watt
Starting	Electric
Steering	Remote
Displacement	2.5 L
Fuel Induction System	2-Stage Direct Fuel Injection (DFI)
Shaft Length	20", 25"
Dry Weight	431 lbs (20 in), 439 lbs (25 in)