Mercury Optimax 150 User Manual

COOLING
Page 4B-8 90-855347R1 JANUARY 1999
Water Pressure Check
Using Water Pressure Gauge 91-79250A2, cut compressor water inlet hose and install tee
fitting (provided) as shown.
NOTE: This is also the same location for installing the water pressure hose for a dash
mounted water pressure gauge.
52582
9
56141
Loctite Pipe Sealant w/Teflon-592
9
g
b
d
c
a
e
f
a-Tee Fitting (22-64706)
b-Fitting (22-63651)
c-Tubing
d-Compression Nut (22-63670)
e-Compressor Water Inlet Hose (Cut and splice in this location)
f-Sta-straps
g-Compressor Water Inlet Hose
WARNING
Shut off engine and refer to troubleshooting chart if water pressure is not within
specification. DO NOT exceed 3000 RPM in neutral.
Idle 1.0 – 3.0 PSI
(6.8 – 20.5 kPa)
Poppet Valve Opening 4 – 9 PSI
(27.4 – 61.6 kPa)
W.O.T. 12.0 PSI (82.1 kPa)
Minimum

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)