Mercury Optimax 150 User Manual

POWERHEAD
Page 4A-2 90-855347R1 JANUARY 1999
PISTON
DIAMETER
Dimension
“A” at Right
Angle (90
°)
to Piston
Pin
0.700
17.78mm
3.4925 in. ± .0005 in.
(88.7095 mm ± .0127 mm)
Using a micrometer, measure dimension
“A” at location shown. Dimension “A”
should be 3.4925 in. ± .0005 for a STAN-
DARD size piston (new) Dimension “A”
will be 0.001 - 0.0015 less if coating is
worn off piston (used)
REEDS Reed Stand 0pen (Max.) 0.020 in. (0.50 mm)
Special Tools
1. Lifting Eye 91-90455
2. Powerhead Stand 91-30591A1
3. Piston Ring Expander 91-24697
4. Lockring Removal Tool 91-52952A1
5. Piston Pin Tool 91-74607A1
6. Driver Head 91-55919

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)