25
90-10212R40
GB
goh66
2
1
3
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MAINTENANCE
ohq15
GEAR CASE LUBRICATION – FOR 3-1/4 IN. (83MM)
DIAMETER GEAR CASE
When adding or changing gear case 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 gear case 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 gear case.
Examine the drained gear case lubricant for metal particles. A small amount of fine
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 Gear Case
1 Place outboard in a vertical operating position.
2 Place a drain pan below outboard.
3 Remove vent plug and fill/drain plug and drain lubricant.
ohv4
Gear Case Lubricant Capacity
Gear case lubricant capacity is approximately 14.68 fl. oz. (440 ml).
oto1
Gear Case Lubricant Recommendation
Mercury or Quicksilver Premium or High Performance Gear Lube.
goh67
1-5
a
c
b
d
ohq9
GEAR CASE LUBRICATION – FOR 3-1/4 IN. (83MM)
DIAMETER GEAR CASE
Checking Gear Case Lubricant Level and Refilling Gear Case
1 Place outboard in a vertical operating position.
2 Remove vent plug (a).
3 Place lubricant tube (b) into the fill hole and add lubricant until it appears at the
vent hole (c).
IMPORTANT: Replace sealing washers if damaged.
4 Stop adding lubricant. Install the vent plug and sealing washer (a) before
removing the lubricant tube.
5 Remove lubricant tube and reinstall cleaned fill/drain plug and sealing washer
(d).
goh86
2
1
3
ohq16
GEAR CASE LUBRICATION – FOR 4-1/4 IN. (108MM)
DIAMETER GEAR CASE
When adding or changing gear case 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 gear case 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 gear case.
Examine the drained gear case lubricant for metal particles. A small amount of fine
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 Gear Case
1 Place outboard in a vertical operating position.
2 Place a drain pan below outboard.
3 Remove vent plugs and fill/drain plug and drain lubricant.
ohv18
Gear Case Lubricant Capacity
Gear case lubricant capacity is approximately 24 fl. oz. (710 ml).
oto1
Gear Case Lubricant Recommendation
Mercury or Quicksilver Premium or High Performance Gear Lube.
goh87
1-6
a
c
b
d
e
f
ohq11
GEAR CASE LUBRICATION – FOR 4-1/4 IN. (108MM)
DIAMETER GEAR CASE
Checking Lubricant Level and Filling Gear Case
1 Place outboard in a vertical operating position.
2 Remove the front vent plug (a) and rear vent plug (b).
3 Place lubricant tube (c) into the fill hole and add lubricant until it appears at the
front vent hole (d). At this time install the front vent plug and sealing washer (a).
4 Continue adding lubricant until it appears at the rear vent hole (e).
5 Stop adding lubricant. Install the rear vent plug and sealing washer (b) before
removing lubricant tube.
6 Remove lubricant tube and reinstall cleaned fill/drain plug and sealing washer
(f).
ohr1
SUBMERGED OUTBOARD
A submerged outboard will require service within a few hours by an authorized
dealer once the outboard is recovered from the water. This immediate attention by
a servicing dealer is necessary once the engine is exposed to the atmosphere to
minimize internal corrosion damage to the engine.
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