Mariner Mercury 105/140 JET, Service Manual

Page: 630 / 797

90-824052R3 JUNE 2002 LOWER UNIT - 6C-13
4. Use Long Puller Jaws (91-46086A1) and Puller
Bolt (91-85716), as shown, to remove bearing
carrier. (Use propeller thrust hub to maintain
outward pressure on puller jaws).
a
b
c
51867
a - Long Puller Jaws
b - Puller Bolt (91-85716)
c - Thrust Hub
NOTE: When bearing carrier is removed from gear
housing, the bearing carrier alignment key will come
out with it.
5. Propeller shaft now is free and can be lifted out
of gear housing.
BEARING CARRIER CLEANING AND
INSPECTION
IMPORTANT: It is recommended that all seals and
O-rings be replaced (as a normal repair proce-
dure) to assure effective repair.
1. Clean the bearing carrier assembly with clean
solvent and dry with compressed air.
2. Before replacing propeller shaft oil seals, inspect
seals for wear or damage. A worn or damaged
propeller shaft oil seal may be an indication of
other potential problems.
3. Bearing carrier propeller shaft needle bearing
condition is determined by propeller shaft surface
condition (See “Propeller Shaft Cleaning and
Inspection”, following.)
4. Inspect the reverse gear to pinion gear wear
pattern. If it is not even and smooth. replace the
reverse gear and pinion gear.
5. Check clutch jaws on reverse gear for damage.
Replace reverse gear, if damage is found on
clutch jaws.
6. Inspect reverse gear journal for scoring, galling,
or discoloration (BLUEING) due to lack of oil.
Replace reverse gear if such conditions exist.
7. Inspect bearing carrier reverse gear bearing
surface for scoring or galling due to lack of oil or
presence of metal chips in oil. Replace carrier if
such conditions exist.
BEARING CARRIER DISASSEMBLY
1. Remove and discard O-ring from between
bearing carrier and thrust washer.
2. Propeller shaft oil seals can be removed either by
(a) using a pry bar, as shown, or (b) pressing
seals out when propeller shaft needle bearing is
pressed out of bearing carrier.
NOTE: Unless propeller shaft needle bearing will be
replaced, do not use step “2b.”
a
51867
a - Pry Bar
3. If inspection of propeller shaft needle bearing
determines that replacement of bearing is
required, use Universal Bearing Removal and
Installation Tool (91-31229A1), to press bearing
and seals out of bearing carrier.