Page 4665 of 6020

MANUAL TRANSMISSION 7B1-59
Service Precaution
WARNING: THIS VEHICLE HAS A SUPPLE MENTAL
RESTRAINT SYSTEM (SRS). REFER TO THE SRS
COMPONENT AND WIRING LOCATION VIEW IN
ORDER TO DETERMINE WHETHER YOU ARE
PERFORMING SERVICE ON OR NEAR THE SRS
COMPONENTS OR THE SRS WIRING. WHEN YOU
ARE PERFORMING SERVICE ON OR NEAR THE
SRS COMPONENTS OR THE SRS WIRING, REFER
TO THE SRS SERVICE INFORMATION. FAILURE TO
FOLLOW WARNINGS COULD RESULT IN POSSIBLE
AIR BAG DEPLOYMENT, PERSONAL INJURY, OR
OTHERWISE UNNECESSARY SRS SYSTEM
REPAIRS.
CAUTION: Always use the correct fastener in the
proper location. When you replace a fastener, use
ONLY the exact part number for that application.
ISUZU/GM will call out those fasteners that require a
replacement after removal. ISUZU/GM will also call
out the fasteners that require thread lockers o
r
thread sealant. UNLESS OTHERWISE SPECIFIED,
do not use supplemental coatings (paints, greases,
or other corrosion inhibitors) on threaded fasteners
or fastener joint interfaces. Generally, such coatings
adversely affect the fastener torque and the joint
clamping force, and may damage the fastener.
When you install fasteners, use the correct
tightening sequence and specifications. Following
these instructions can help you avoid damage to
parts and systems.
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
Page 4666 of 6020
7B1-60 MANUAL TRANSMISSION
General Description
MUA5G/5H/5S Transmission (4×
××
×
4)
A07R300003
The MUA5G/5H/5S is a constant mesh transmission,
synchronized in all speeds. The transmission is
designed for a great reduction of the shift effort and the
quietest possible operation.
Principle parts of the transmission are the integral clutch
housing, the intermediate plate, the rear case, and the
gears.
The transmission control box is built into the
transmission.
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
Page 4667 of 6020
MANUAL TRANSMISSION 7B1-61
Transmission (4×
××
×
4)
Disassembled View
RTW 77BLF003601
Legend
(1) Gear Control Lever Knob (10) Transfer Assembly
(2) Rear Floor Console (bucket) (11) Fuel Pipe Bracket
(3) Front Floor Console (12) Slave Cylinder
(4) Grommet Assembly (13) Rear Mount Nut
(5) Gear Control Lever (14) Transmission Crossmember
(6) Rear Propeller Shaft (15) Starter (Diesel engine only)
(7) Front Propeller Shaft (16) Transmission Retaining Nut and Bolt
(8) Exhaust Pipe Nut (Diesel engine) (17) Transmission Assembly
(9) Transmission-Transfer Fixing Bolt
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
Page 4668 of 6020
7B1-62 MANUAL TRANSMISSION
Removal
1. Disconnect the battery ground cable.
2. Remove the gear control lever knob.
3. Remove the rear floor console. (Bucket seat)
Refer to the section “Floor Console”.
4. Remove the front floor console.
Refer to the section “Floor Console”.
745R300006
Legend
(1) Knob
(2) Rear Floor Console
(3) Front Floor Console
5. Remove the grommet assembly.
RTW 47BMH000101
Legend
(1) Grommet Assembly
(2) Floor Panel
(3) Front
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
Page 4669 of 6020
MANUAL TRANSMISSION 7B1-63
6. Remove the gear control lever.
7. Raise and support the vehicle with suitable stands.
8. Remove the rear propeller shaft.
NOTE: Apply alignment marks on the flange at the
differential side.
9. Remove the front propeller shaft.
NOTE:
Apply alignment marks on the flange at both
front and rear sides.
401RS023
10. Loosen the front exhaust pipe fixing nuts at the engine side but do not remove them. (Diesel engine
only)
RTW 67BSH000101
11. Disconnect the harness connectors and clips on the
transmission and transfer.
• Neutral Switch: Transmission
• Back up Switch
• Actuator
• 2W D-4W D Switch
• Neutral Switch: Transfer
• Car Speed Sensor
810R300069
Legend
(1) Neutral Switch Connector: Transmission
(2) Back up Switch Connector
(3) Speed Sensor Connector
(4) Actuator Connector
(5) 2W D - 4W D Switch Connector
(6) Neutral Switch Connector: Transfer
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
Page 4670 of 6020
7B1-64 MANUAL TRANSMISSION
12. Remove the fuel pipe brackets with pipes from the
transmission.
Diesel engine
220R300012
Legend
(1) Bolt
(2) Nut
(3) Fuel Pipe Assembly
C24SE
Scan-2
13. Remove the slave cylinder and put it aside.
220LV019
14. Support the transmission with a transmission jack.
220RS0001
15. Remove the engine rear mount nuts from the
transmission crossmember.
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
Page 4671 of 6020
MANUAL TRANSMISSION 7B1-65
16. Remove the engine rear mount bolts fixing
transmission.
220R300009
17. Remove the middle part of the transmissioncrossmember by removing the four fixing bolts and
nuts.
501R30007
18. Take out the rear support rubber. 19. Remove the starter. (Diesel engine only)
060L100070
20. Remove the transmission retaining nuts and bolts.
Remove the transmission assembly from the
vehicle.
21. Remove the transmission–transfer fixing bolts and nut, and disassemble the transfer from the
transmission.
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007
Page 4672 of 6020
7B1-66 MANUAL TRANSMISSION
Installation
1. Apply grease (BESCO L2 or equivalent) on the
splined portion of the output shaft.
2. Connect the transfer to the transmission.
3. Install the transmission-transfer bolts and nut and tighten them to the specified torque.
Torque: 41 N ⋅
⋅⋅
⋅
m (4.2 kgf ⋅
⋅⋅
⋅
m/30 lb ⋅
⋅⋅
⋅
ft)
mm (in)
RTW 77BMF001501
4. Apply a thin coat of molybdenum disulfide grease to
the top gear shaft spline.
5. Slowly operate the transmission jack until the front of the transmission is aligned with the rear of the
engine.
The slope of the engine and the transmission must be the same.
6.
Align the top gear shaft with the clutch driven plate
spline.
7. Install the transmission assembly to the engine. Tighten the transmission nuts and bolts, as shown in
the figure.
BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007