Specifications

MAINTENANCE
90-860168040 JANUARY 2004 Page 67
0144.04
Changing
1. Remove the gear lube monitor from the bracket.
a
79682
a-Gear lube monitor
2. Empty the contents into a suitable container.
3. Install the monitor in the bracket.
4. Place the sterndrive unit in full trim limit OUT position, remove the oil fill/drain screw and
sealing washer and drain the oil.
72522
a
b
a-Oil fill/drain screw
b-Sealing washer
5. Remove the oil vent screw and sealing washer. Allow the oil to drain completely.
a
b
70021
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.