0-4
0
How to use this manual
Manual format
The format of this manual has been designed to make service procedures clear and easy to under-
stand. Use the following information as a guide for effective and quality service.
• Parts are shown and detailed in an exploded diagram and are listed in the component list (see
1
in the following figure for an example page).
• The component list consists of part names and quantities, as well as bolt and screw dimensions
(see
2
in the following figure).
• Symbols are used to indicate important aspects of a procedure, such as the grade of lubricant and
the lubrication points (see
3
in the following figure).
• Tightening torque specifications are provided in the exploded diagrams (see
4
in the following fig-
ure), and in the related detailed instructions. Some torque specifications are listed in stages as
torque figures or angles in degrees.
• Separate procedures and illustrations are used to explain the details of removal, checking, and
installation where necessary (see
5
in the following figure for an example page).
TIP:
For troubleshooting procedures, see Chapter 4, “Troubleshooting.”
LOWR
Lower unit
8-1
Lower unit
No.
Part name
Q’ty
Remarks
1
t
u
n
g
n
i
t
s
u
j
d
A
1
1
t
u
n
k
c
o
L
2
2
l
e
w
o
D
3
1
w
e
r
c
s
k
c
e
h
C
4
2
t
e
k
s
a
G
5
Not reusable
1
w
e
r
c
s
n
i
a
r
D
6
4
r
e
h
s
a
W
7
0
1
M
4
t
l
o
B
8
×
35 mm
1
e
d
o
n
A
9
1
r
e
h
s
a
w
l
a
i
c
e
p
S
0
1
Not reusable
6
M
1
t
l
o
B
1
1
×
35 mm
6
M
1
t
l
o
B
2
1
×
18 mm
1
b
a
t
m
i
r
T
3
1
1
t
i
n
u
r
e
w
o
L
4
1
1
r
e
c
a
p
S
5
1
1
r
e
ll
e
p
o
r
P
6
1
1
r
a
ll
o
C
7
1
3
1
2
3
6
5
5
4
20
19
18
17
15
16
14
13
12
11
10
9
8
7
518
M
A
D
LT
572
LT
LT
572
LT
1901
9 N
·
m (0.9 kgf
·
m, 6.6 ft
·
Ib)
9 N
·
m (0.9 kgf
·
m, 6.6 ft
·
Ib)
34 N
·
m (3.4 kgf
·
m, 25.1 ft
·
Ib)
37 N
·
m (3.7 kgf
·
m, 27.3 ft
·
Ib)
LOWR
Lower unit
8-17
TIP:
Do not reuse a shim if deformed or
scratched.
3.
While holding the special service tool
3
,
strike the tool to check that the taper
roller bearing outer race is installed prop-
erly.
TIP:
If a high-pitched metallic sound is produced
when the special service tool is struck, the
taper roller bearing outer race
2
is installed
properly.
4.
Install a new needle bearing
5
to the
specified depth
a
.
TIP:
• Face the identification mark
b
on the nee-
dle bearing toward the water pump side.
• Install the stopper
c
onto the driver rod
6
at the specified depth
a
.
5.
Heat the installation area of the taper
roller bearing outer race in the lower
case using a gas torch, and then install
the sleeve
9
, the original pinion shims
0
, and a new taper roller bearing outer
race
A
.
NOTICE: When heating the
lower case, heat the entire installation
area evenly. Otherwise, the paint on
the lower case could be burned.
Driver rod LL
3
: 90890-06605
Bearing outer race attachment
4
:
90890-06625
1
2
G
3
2
1
3
Driver rod SL
6
: 90890-06602
Bearing depth plate
7
: 90890-06603
Needle bearing attachment
8
:
90890-06615
Depth
a
: 185.0–186.0 mm (7.28–7.32 in)
a
c
5
7
6
G
b
4
7
2
5
3
4
1
