Maintenance
Page 1B-12 90-8M0050731 MAY 2011
Adding Lubricant
Fluid Type Capacity
High Performance Gear Lube 725 cc (24 oz)
1. Insert the nozzle of the gear lubricant tube in the drive housing's fill/drain hole.
2. Add lubricant to the point of overflow.
3. Install the vent screw. Ensure that the screw gasket is in place.
4. Remove the nozzle of the tube and install the fill/drain screw with the gasket.
Stator Assembly Lubricant
Draining Lubricant
NOTE: When draining stator lubricant, visually check for water in the lubricant. It may have settled to the bottom and will drain
before the lubricant, or it may have mixed with the lubricant giving it a milky color. In either case, have the stator checked by your
authorized Mercury Marine dealer. Water in the lubricant can cause premature bearing failure or, in freezing weather, damage to
the stator.
a - Screws securing nozzle assembly (4)
b - Nozzle assembly
c - Stator assembly
d - Screws securing stator assembly (4)
e - Vent plug
f - Fill/drain hole and plug
1. Disconnect the shift and steering cables from the reverse gate and rudder. Be careful not to change adjustments.
2. Remove the four screws securing the nozzle assembly to the stator.
3. Remove the nozzle.
4. Remove the four screws securing the stator assembly to the drive housing and the two screws to the ride plate.
5. Remove the stator.
6. Remove the stator fill/drain and vent plugs.
7. Tip the stator to drain the remaining lubricant out the fill hole.
Adding or Refilling Lubricant
a - Vent plug
b - Fill hole
c - Reverse gate (bottom edge)
d - Rudder (outside diameter)
Fluid Type Capacity
High Performance Gear Lube 562 ml (19 fl oz)
1. Install the stator to the pump. Be careful when sliding the shaft past the seals to prevent damage to the seals. Apply Loctite
242 Threadlocker to the four stator bolts and the two ride plate screws. Tighten the screws to the specified torque.
Tube Ref No.
Description Where Used Part No.
66
Loctite 242 Threadlocker Stator bolts and ride plate screws 92-809821
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