Lower Unit - TOHATSU MX 50D2 Service Manual

1. Special Tools .............................. 6-2
2. Parts Layout .............................. 6-6
Gear Case (Drive Shaft, MX50)............ 6-6
Gear Case (Drive Shaft, MWX50)......... 6-14
Gear Case (Propellor Shaft, MWX50) ... 6-18
3. Inspection Items ........................ 6-22
1) Draining Gear Oil ........................ 6-22
2) Removing Propeller ..................... 6-22
3) Removing Lower Unit .................. 6-24
4) Disassembly of Cam Rod ............ 6-26
5) Inspection of Clutch Cam ............ 6-26
6) Assembly of Clutch Cam Parts ...... 6-28
7) Removing Water Pump ............... 6-30
8) Inspection of Water Pump ............ 6-32
9) Inspection of Water Pipe............... 6-32
10) Disassembly of Water Pump Case
(Lower) .................................... 6-34
11) Assembly of Water Pump Case
(Lower) .................................... 6-34
12) Removing Propeller Shaft Housing
Ass'y ....................................... 6-36
13) Disassembly of Propeller Shaft Housing
Ass'y ....................................... 6-38
14) Inspection of Propeller Shaft Housing
............................................. 6-42
15) Assembly of Propeller Shaft Housing
............................................. 6-42
16) Disassembly of Propeller Shaft Ass'y
............................................. 6-46
17) Inspection of Propeller Shaft Ass'y 6-48
6

Lower Unit

18) Assembly of Propeller Shaft Ass'y
19) Removing Drive Shaft Ass'y ......... 6-52
20) Disassembly of Drive Shaft Ass'y ... 6-54
21) Inspection of Drive Shaft............... 6-54
22) Inspection of Pinion (B) Gear ......... 6-54
23) Assembly of Drive Shaft Parts ...... 6-56
24) Removing Forward (A) Gear Ass'y 6-60
25) Disassembly of Forward Gear (A) Gear
26) Inspection of Forward (A) Gear ...... 6-62
27) Assembly of Forward (A) Gear Parts
28) Disassembly of Gear Case............ 6-66
29) Inspection of Gear Case ............... 6-68
30) Assembly of Gear Case Parts ...... 6-70
31) Measurement of Pinion (B) Gear Height
32) Measurement of Back Lash between
33) Measurement of Back Lash between
34) Assembly of Lower Unit Parts ...... 6-92
35) Assembly of Pump Case ............ 6-94
36) Attaching Clutch Cam Ass'y ......... 6-96
37) Measurement of Propeller Shaft Play and
38) Installation of Lower Unit ............ 6-100
............................................. 6-60
............................................. 6-62
and Shim Selection ..................... 6-76
Forward (A) and Pinion (B) Gears and
Shim Selection ........................... 6-80
Pinion (B) and Reverse (C) Gears and
Shim Selection ........................... 6-88
Selection of Washer Thickness ...... 6-98
GB
6-50