Page 4561 of 6020

7A4-84 UNIT REPAIR (JR405E)
SERVICE STANDARD (Cont’d)
Number of coils 4.8
Outside diameter mm (in) 11.2 (0.441)
Free length mm (in) 22.3 (0.878)
Return spring
Linear diameter mm (in) 1.1 (0.043)
Number of drives / driven plates 5/5
Standard mm (in) 2.0 (0.079)Drive plate facing thickness
Limit mm (in) 1.8 (0.071)
Retaining plate and retaining plate clearance mm (in) 1.0 – 1.4 (0.039 – 0.055)
5.4 (0.213)
5.6 (0.220)
5.8 (0.228)
6.0 (0.236)
6.2 (0.244)
Available 2-4 brake retaining plate thickness mm (in)
6.4 (0.252)
Number of coils 10.2
Outside diameter mm (in) 6.9 (0.272)
Free length mm (in) 22.5 (0.886)
2-4 brake
Return spring Linear diameter mm (in) 1.1 (0.043)
Output shaft Seal ring clearance mm (in) 0.10 – 0.25 (0.0039 – 0.0098)
Total end play mm (in) 0.25 – 0.55 (0.0098 – 0.0217)
1.4 (0.055)
1.6 (0.063)
1.8 (0.071)
2.0 (0.079)
2.2 (0.087)
Total end play
Available oil pump bearing race thickness mm (in)
2.4 (0.094)
Torque converter end play mm (in) 67.0 (2.638)
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Page 4562 of 6020
UNIT REPAIR (JR405E) 7A4-85
SPECIAL SERVICE TOOL
ILLUSTRATION PART NO. PART NAME
5-8841-0841-0
Holding Fixture
5-8840-0003-0
Holding Fixture Base
5-8840-2764-0
2-4 Brake Spring Compressor
5-8840-2767-0
High Clutch Spring Compressor
5-8840-2759-0
Low Clutch Spring Compressor
5-8840-2761-0
Oil Pump Oil Seal Installer
5-8840-2769-0
Rear Extension Oil Seal Installer
5-8840-2770-0
Rear Adapter Oil Seal Installer
5-8840-2758-0
Manual Shaft Oil Seal Installer
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Page 4563 of 6020
7A4-86 UNIT REPAIR (JR405E)
ILLUSTRATION PART NO. PART NAME
5-8840-2763-0
Inhibitor Switch Set Plate
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ISUZU KB P190 2007
Page 4564 of 6020
Section 7B Manual Transmission MSG......................................................................... 4613 PAGE
Section 7B1 Manual Transmission MUA ...................................................................... 4655
SECTION 7
MANUAL TRANSMISSION
TA BLE OF CONTENTS
TRANSMISSION
Section 7B 1 M an ual Tr ans missio n M UX ...................................................................... 47 68
Section 7C Clutch ........................................................................................................... 4 827
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Page 4565 of 6020

MSG MODEL 7B-1
SECTION 7B
MANUAL TRANSMISSION (MSG)
TABLE OF CONTENTS
PAGE
Main Data and Specifications ..................................................................................... 7B - 2
General Description .................................................................................................... 7B - 3
Torque Specification ................................................................................................... 7B - 4
Repair Kit .................................................................................................................... 7B - 6
Removal and Installation ........................................................................................... 7B - 7
Disassembly ................................................................................................................ 7B - 15
Inspection and Repair ................................................................................................ 7B - 25
Reassembly ................................................................................................................. 7B - 29
Special Service Tool ................................................................................................... 7B - 42
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Page 4566 of 6020
7B-2 MSG MODEL
MAIN DATA AND SPECIFICATIONS
Transmission type Fully synchronized 5-forward gears with a constant
mesh type reverse gear.
Transmission Control Direct control with the gear shift lever on the floor.
Gear ratio MSG5K
1st : 4.122
2nd : 2.493
3rd : 1.504
4th : 1.000
5th : 0.855
Rev : 3.720
Oil capacity lit. (US gal.) 1.55(0.41)
W eight ; approx. kg(lbs) 33.3(73.8)
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Page 4567 of 6020
MSG MODEL 7B-3
GENERAL DESCRIPTION
The MSG type transmission is fully synchronized 5-speed unit with blocking ring type synchronizers and a constant
mesh type reverse gear.
The unit consists principally of a case with an integral clutch housing, intermediate plate, rear cover and gears.
The top of the rear cover is a quadrant box containing the transmission control mechanism.
The case and rear cover are cast aluminum alloy to reduce weight.
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Page 4568 of 6020

7B-4 MSG MODEL
TORQUE SPECIFICATION
STANDDARD BOLTS
The torque values given in the following table should be applied where a particular torque is not specified.
N⋅m (kgf ⋅m/lb ⋅ft)
Strength 4.8/4T 7T 8.8 9.8/9T
Class Refined Non-Refined
Bolt Identifi-
cation
Bolt
Diameter ×
××
×
Pitch (mm)
No mark-
M6 × 1.0 6 (0.6 / 52 lb.in) 7 (0.7 / 61 lb.in) 8 (0.8 / 69 lb.in) -
M8 × 1.25 13 (1.3 / 113
lb.in) 17 (1.7 / 12)
20 (2.0 / 14) 24 (2.4 / 17)
M10 × 1.25 27 (2.8 / 20) 37 (3.8 / 27) 42 (4.3 / 31) 50 (5.1 / 37)
M12 × 1.25 61 (6.3 / 45) 76 (7.8 / 56) 87 (8.9 / 64) 95 (9.7 / 70)
M14 ×1.5 96 (9.8 / 71) 116 (11.8 / 85) 133 (13.6 / 98) 142 (14.5 / 105)
M16 × 1.5 130 (13.3 / 96) 170 (17.3 / 125) 193 (19.7 / 143) 200 (20.4 / 148)
M18 × 1.5 188 (19.2 / 139) 244 (24.9 / 180) 278 (28.3 / 205) 287 (29.3 / 212)
M20 × 1.5 258 (26.3 / 190) 337 (34.4 / 249) 385 (39.3 / 284) 396 (40.4 / 292)
M22 × 1.5 332 (33.9 / 245) 453 (46.3 / 335) 517 (52.7 / 381) 530 (54.1 / 391)
M24 × 2.0 449 (45.8 / 331) 570 (58.2 / 421) 651 (66.3 / 480) 692 (70.6 / 511)
* M10 × 1.5 26 (2.7 / 20) 36 (3.7 / 27) 41 (4.2 / 30) 48 (4.9 / 35)
* M12 × 1.75 57 (5.8 / 42) 71 (7.2 / 52) 80 (8.2 / 59) 89 (9.1 / 66)
* M14 × 2.0 89 (9.1 / 66) 110 (11.2 / 81) 125 (12.7 / 92) 133 (13.6 / 98)
* M16 × 2.0 124 (12.7 / 92) 162 (16.5 / 119) 185 (18.9 / 137) 191 (19.5 / 141)
Flange Bolt M6 × 1.0 7 (0.7 / 61 lb.in) 8 (0.8 / 69 lb.in) 9 (0.9 / 78 lb.in) -
M8 × 1.25 15 (1.5 / 11) 19 (1.9 / 14) 22 (2.2 / 16) 26 (2.7 / 20)
M10 × 1.25 31 (3.2 / 23) 41 (4.2 / 30) 47 (4.8 / 35) 56 (5.7 / 41)
M12 × 1.25 69 (7.0 / 51) 85 (8.7 / 63) 97 (9.9 / 72) 106 (10.8 / 78)
M14 × 1.5 104 (10.6 / 77) 126 (12.8 / 93) 144 (14.6 / 106) 154 (15.7 / 114)
M16 × 1.5 145 (14.8 / 127) 188 (19.2 / 139) 214 (21.8 / 158) 221 (22.5 / 163)
M18 × 1.5 - - - -
M20 × 1.5 - - - -
M22 × 1.5 - - - -
M24 × 2.0 - - - -
* M10 × 1.5 30 (3.1 / 22) 40 (4.1 / 30) 46 (4.7 / 34) 54 (5.5 / 40)
* M12 × 1.75 64 (6.5 / 47) 78 (8.0 / 58) 89 (9.1 / 66) 99 (10.1 / 73)
* M14 × 2.0 97 (9.9 / 72) 119 (12.1 / 88) 135 (13.8 / 99.7) 144 (14.7 / 107)
* M16 × 2.0 137 (14.0 / 101) 178 (18.2 / 132) 203 (20.7 / 132) 210 (21.5 / 155)
The asterisk * indicates that the bolts are used for female-threaded parts that are made of soft materials such as
casting, etc.
FLARE NUTS
Pipe diameter mm (in) Torque N ⋅
⋅⋅
⋅
m (kgf ⋅
⋅⋅
⋅
m/lb ⋅
⋅⋅
⋅
ft) Pipe diameter mm (in) Torque N ⋅
⋅⋅
⋅
m (kgf ⋅
⋅⋅
⋅
m/lb ⋅
⋅⋅
⋅
ft)
4.76 (0.187) 16 (1.6 / 12) 10.00 (0.394) 54 (5.5 / 40)
6.35 (0.250) 26 (2.7 / 20) 12.00 (0.472) 88 (9.0 / 65)
8.00 (0.315) 44 (4.5 / 33) 15.00 (0.591) 106 (10.8 / 78)
Standard Hex.
Head Bolt
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