Mercury 30 Service Manual

LOWER UNIT - 6-190-826148R2 MARCH 1997
Specifications
Gear Ratio 2.00:1
Gearcase Capacity 14.9 fl. oz. (440 mL)
Lubricant Type Quicksilver Gear Lube Premium Blend
Forward Gear
Number Of Teeth
Type
26
Spiral/Bevel
Pinion Gear
Number Of Teeth
Type
13
Spiral/Bevel
Pinion Height No Adjustment
Forward Gear Backlash No Adjustment
Reverse Gear Backlash No Adjustment
Water Pressure
With Thermostat & Poppet
-@ W.O.T.
-@ Idle
All Models W/O Thermostat + Poppet
-@ W.O.T.
-@ Idle
Poppet Valve Opening 1994-1997
Poppet Valve Opening 1998 & Newer
5 - 7 PSI @ 5000 RPM
0.5 - 1.5 PSI @ 750 RPM
5 - 7 PSI @ 5000 RPM
0 - 1 PSI @ 750 RPM
900-1000 RPM
3000-3500 RPM
NOTE:Beforefillinggearcase,apply10-15PSIofair
pressureattheVENThole.Pressureshouldnotdrop
for15secondswhilealternatelyapplyinga2-3pound
force to the top of the shift shaft in the fore and aft
direction.

Mercury 30 Specifications

General

Horsepower	30 HP
Cylinders	3
Displacement	526 cc
Gear Shift	F-N-R
Fuel Induction System	Electronic Fuel Injection (EFI)
Shaft Length	20 in
Steering	Remote / Tiller