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Mercury OUTBOARD MOTOR - Checking Engine Oil Level and Leaks; Gearcase Lubrication and Service; Gearcase Lubricant Inspection for Water; Draining Gearcase Lubricant

Mercury OUTBOARD MOTOR
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MAINTENANCE
58
IMPORTANT: Inspect oil for signs of contamination. Oil contaminated with
water will have a milky color to it; oil contaminated with fuel will have a
stong fuel smell. If contaminated oil is noticed, have the engine checked
by your dealer.
a
ob00496
a - Drain plug
OIL FILLING
IMPORTANT: Do not overfill. Be sure that the outboard is upright (not tilted)
when checking oil.
Remove the oil fill cap and refill with 450 ml (15 fl. oz.) of oil. Reinstall the
oil fill cap.
Idle engine for five minutes and check for leaks. Stop engine and check oil
level on dipstick. Add oil if necessary.
Gearcase Lubrication
When adding or changing gearcase lubricant, visually check for the
presence of water in the lubricant. If water is present, it may have settled
to the bottom and will drain out prior to the lubricant, or it may be mixed
with the lubricant, giving it a milky colored appearance. If water is noticed,
have the gearcase checked by your dealer. Water in the lubricant may
result in premature bearing failure or, in freezing temperatures, will turn to
ice and damage the gearcase.
Examine the drained gearcase lubricant for metal particles. A small amount
of metal particles indicates normal gear wear. An excessive amount of
metal filings or larger particles (chips) may indicate abnormal gear wear
and should be checked by an authorized dealer.
DRAINING GEARCASE
1. Tilt outboard so that the oil drain plug is at the lowest point.
2. Place drain pan below outboard.

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