Bearing Carrier Removal; Bearing Carrier Disassembly; Bearing Carrier Reassembly; Installing Lower Seals - Mercury 40 Service Manual

Bearing Carrier Removal

1. Remove 4 bolts securing bearing carrier to jet
drive.
a
a
a - Bolts

Bearing Carrier Disassembly

1. Remove the large beveled snap ring from the
bearing carrier.
2. Heat the bearing carrier with a torch only until you
can barely touch it.
3. Hold the drive shaft vertical and bump the impel-
ler end of the drive shaft against a wooden block
causing the bearing carrier to slide down off the
bearing.
4. Remove snap ring, press the ball bearing off the
drive shaft. Leave the bearing thrust ring (located
in the drive shaft groove) unless damaged.
5. Remove the seals and spiral retaining rings from
the bearing carrier and the upper seal housing.
6. Clean all parts thoroughly and remove any burrs.
d
b
a - Snap Ring
b - Bearing Carrier
c - Ball Bearing
d - Upper Seal Housing
e - Snap Ring
f - Thrust Ring
90-852572R1 JANUARY 1998
54165
a
e
c
f

Bearing Carrier Reassembly

Installing Lower Seals

Install seals into bearing carrier as follows:
1. Install O-ring seals into the top seats of the three
passage holes.
2. Install spiral retaining ring into the inner ring
groove.
3. Spread a film of grease around the inside bore of
the seal surface before pressing in the seals.
4. Press in the garter spring seal against the inner
retaining ring as shown. Fill the garter spring cav-
ity in the seal with grease.
5. Install spiral retaining ring into the outer ring
groove. Align the notched ends of the retaining
ring to straddle the small vent hole drilled in the
ring groove.
6. Press in the outer seal against the retaining ring
as shown.
7. Grease all the seal lips.
a
b
d
a - O-rings
b - Retaining Ring
c - Spring Seal
d - Retaining Ring
e - Outer Seal
f - The Notched ends of the Retaining Ring Must Straddle this
Vent Hole
a
c
e
f
LOWER UNIT - 6D-19