Mercury Optimax 150 User Manual

DIRECT FUEL INJECTION
Page 3B-46 90-855347R1 JANUARY 1999
Air Compressor
Air compressor is a single cylinder, water cooled and lubricated by the outboard oil pump.
Air Compressor Specifications
Air Compressor Type
Compressor Output
Reciprocating Piston
(1 to 1 ratio with engine RPM)
@ Idle – 80 psi
@ W.O.T. – 110 psi
Cylinder Block Displacement 7.07 cu. in. (116 cc)
Cylinder Bore Diameter (Standard)
Taper/Out-of-Round/Wear Maxi-
mum
Bore Type
2.5591 in. (65.0 mm)
0.001 in. (0.025 mm)
Cast Iron
Stroke Length 1.374 in. (34.9 mm)
Piston Piston Type Aluminum
Piston Diameter
Dimen-
sion “A”
at Right
Angle
(90
°) to
Piston
Pin
0.500 in.
2.5578 ± .0004 in.
(64.97 ± 0.010 mm)
Piston Ring End Gap
Top Ring
Middle Ring
Bottom Ring
0.0059 – 0.0098 in.
(0.15 – 0.25 mm)
0.0059 – 0.0098 in.
(0.15 – 0.25 mm)
0.0039 – 0.014 in.
(0.10 – 0.35 mm)
Reeds Reed Stand Open 0.010 in. (0.25 mm)

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)