BIGFOOT GEAR HOUSING
Page 6B-58 90-857046R1 NOVEMBER 2001
Filling Gear Housing With Lubricant
NOTE: Gear housing lubricant capacity is 24 fl oz (710 mL).
WARNING
If gear housing is installed on engine, to avoid accidental starting, disconnect (and
isolate) spark plug leads from spark plugs before working near the propeller.
CAUTION
Do not use automotive grease in the gear housing. Use only Premium Blend Gear
Lube.
1. Remove any gasket material from “Fill/Drain” and “Vent” screws and gear housing.
2. Install new sealing washer on “Fill/Drain” and “Vent” screws.
IMPORTANT: Never apply lubricant to gear housing without first removing “Vent”
screws or gear housing cannot be filled because of trapped air. Fill gear housing only
when driveshaft is in a vertical position.
3. Remove lubricant “Fill/Drain” screw and sealing washer from gear housing.
4. Insert lubricant tube into “Fill” hole, then remove “Vent” screws and sealing washer.
5. Fill gear housing with lubricant until excess starts to flow out of one (first) “Vent” screw
hole.
6. Install this “Vent” screw and sealing washer only and tighten to specified torque. Con-
tinue filling until excess starts to flow out of second “Vent” screw hole.
7. Rotate driveshaft clockwise approximately 10 revolutions. Let gearcase sit for at least
one minute to allow any trapped air to settle out, then top off lubricant level.
53922
a
c
b
a- Vent Screw
b- Fill/Drain Screw
c- Oil Level Vent Screw
8. Install second lubricant “Vent” screw and sealing washer. Tighten to specified torque.
IMPORTANT: Do not lose more than one fluid ounce (30cc) of gear lubricant while re-
installing “FILL/DRAIN” screw.
9. Remove lubricant tube and install Fill/Drain screw and sealing washer. Tighten to specified
torque.
Fill/Drain and Vent Screw Torque
60 lb. in. (7.0 N·m)
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