Mercury 45 Jet 50-55 - Bearing Carrier and Propeller Shaft Installation

LOWER UNIT - 6A-2190-817643R1 DECEMBER 1996
7. Install components.
51275
a
b
c
c
d
e
f
a - Threaded Rod
b - Washers
c - Nuts
d - Dial Indicator Adaptor Kit (91-83155)
e - Dial Indicator (91-58222A1)
f - Backlash Indicator Tool (91-19660--1)
8. Position Dial Indicator on line “3” on Backlash Indicator
Tool.
9. Turn driveshaft back-and-forth (check for no rotation at
the propeller shaft).
10. Dial Indicator registers amount of backlash, which
must be between .013 in. (.33mm) and .019 in.
(.48mm).
11. If backlash is less than the minimum reading, remove
shim(s)* from in front of the forward gear bearing race.
12. If backlash is more than the maximum reading, add
shim(s) in front of the forward gear bearing race.
* By adding or subtracting .001 in. (0.025mm) shim, the backlash will
change .00125 in. (0.032mm).
NOTE: When final measurement has been made, apply
Loctite 271 to threads of pinion nut. Torque to 50 lb. ft. (67.8
N·m).
Bearing Carrier and Propeller Shaft
Installation
1. Insert propeller shaft assembly into bearing carrier.
2. Lubricate O-ring (a) and areas (b) with Quicksilver
Special Lubricant 101 (P/N 92-13872A1).
3. Install bearing carrier and propeller shaft assembly
into gear housing. Use care not to displace cam follow-
er (c).
51271
a
b
b
c
!
CAUTION
Use care not to damage O-ring (a) during installation
of bearing carrier assembly.
4. Install bolts (a). Apply Loctite 271 to threads and torque
to 150 lb. in. (17 N·m).
51117
a
a