36
ROUTINE SERVICE
LUBRICATION
Gearcase Lubricant
Draining
IMPORTANT:
Always check the fill level of the
gearcase lubricant at the upper plug before
removing the lower, drain/fill plug. A tie strap can
be used to check lubricant level.
If lubricant level is low, refer to GEARCASE LEAK
TEST on p. 267.
Remove the lubricant level plug, then the lubricant
drain/fill plug, and drain the lube from the gear-
case into a container.
Inspection
Inspect the lubricant and the magnets on the
plugs for metal chips. The presence of metal fuzz
can indicate normal wear of the gears, bearings,
or shafts within the gearcase. Metal chips can
indicate extensive internal damage.
Inspect the lubricant for water contamination.
Water can make the lubricant milky in appear-
ance. However, normal aeration can also cause
the same appearance.
To check for water contamination, put lubricant
into a glass container. Allow the oil to settle for a
minimum of one hour to determine if there is an
abnormal amount of water in the oil.
If water is present, refer to GEARCASE LEAK
TEST on p. 267.
Overheated lubricant will have a black color and
burned odor.
Internal gearcase inspection is recommended
when lubricant is contaminated or shows signs of
failure.
Filling
Refer to the INSPECTION AND MAINTENANCE
SCHEDULE on p. 14 for service frequency and
recommended lubricants.
Secure the gearcase in a vertical position.
WARNING
Gearcase lubricant may be under pressure
and/or hot. If plug is removed from a
recently operated outboard, take precau-
tions to avoid injury.
1. Tie strap 000072
1. Lubricant level plug
2. Lubricant drain/fill plug
39514
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