Section 5 - Maintenance
90-864197076 NOVEMBER 2008 Page 69
4. Bravo One Models: Remove the propeller, lower the sterndrive unit to the full down/in position, remove the oil fill/drain screw
and sealing washer and drain the oil.
a - Oil fill/drain screw
b - Sealing washer
5. All Other Models: Place the sterndrive unit in full trim limit out position, remove the oil fill/drain screw and sealing washer
and drain the oil.
a - Oil fill/drain screw
b - Sealing washer
6. Remove the oil vent screw and sealing washer. Allow the oil to drain completely.
a - Oil vent screw
b - Sealing washer
IMPORTANT: If any water drained from the oil fill/drain hole, or if the oil appears milky, the sterndrive unit is leaking and
should be checked immediately by your authorized Mercury MerCruiser dealer.
7. Lower the sterndrive unit so that the propeller shaft is level. Fill the sterndrive unit, through the oil fill/drain hole, with specified
gear lubricant until an air‑free stream of lubricant flows from oil vent hole.
Tube Ref No.
Description Where Used Part No.
87
High Performance Gear
Lubricant
Sterndrive unit 92-858064K01
IMPORTANT: Use only Mercury/Quicksilver High Performance Gear Lubricant in sterndrive unit.
8. Install the oil vent screw and sealing washer.
IMPORTANT: Filling is not complete until the gear lubricant appears in the gear lube monitor
9. Continue to pump gear lubricant into the gear lube monitor circuit until the gear lubricant appears in the gear lube monitor.
a
mc79506-1
b
b
a
mc79507-1
mc77106-1
b
a
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