engine ISUZU KB P190 2007 Workshop Repair Manual

MANUAL TRANSMISSION 7B1-67
Diesel engine
N⋅
⋅⋅
⋅
m (kgf ⋅
⋅⋅
⋅
m/lb ⋅
⋅⋅
⋅
ft)
mm (in)


RTW 77BLF004001

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ISUZU KB P190 2007

MANUAL TRANSMISSION 7B1-69
8. Install the starter. (Diesel engine)
NOTE: Tighten the lower bolt temporarily.
After installing the fuel pipe assembly, tighten the bolt to
the specified torque.
Torque: 76 N ⋅
⋅⋅
⋅
m (7.7 kgf ⋅
⋅⋅
⋅
m/56 lb ⋅
⋅⋅
⋅
ft)
9. Install the rear support rubber on the transmission and tighten the bolts to the specified torque.
Torque: 50 N ⋅
⋅⋅
⋅
m (5.1 kgf ⋅
⋅⋅
⋅
m/37 lb ⋅
⋅⋅
⋅
ft)
10. Install the middle part of transmission crossmember and bolts.
Tighten the nuts to the specified torque.
Torque: 67 N ⋅
⋅⋅
⋅
m (6.8 kgf ⋅
⋅⋅
⋅
m/49 lb ⋅
⋅⋅
⋅
ft)
11. Install the engine rear mount nuts.
Torque: 52 N ⋅
⋅⋅
⋅
m (5.3 kgf ⋅
⋅⋅
⋅
m/38 lb ⋅
⋅⋅
⋅
ft)
Remove the transmission jack from the
transmission side.
12. Apply grease to top hole portion of the shift fork. Install the slave cylinder and tighten the bolts to the
specified torque.
Torque: 76 N ⋅
⋅⋅
⋅
m (7.7 kgf ⋅
⋅⋅
⋅
m/56 lb ⋅
⋅⋅
⋅
ft)
13. Install the fuel pipe brackets on the transmission.
Install the fuel pipe assembly to the fuel pipe brackets
Torque: Bolt & Nut 76 N ⋅
⋅⋅
⋅
m (7.7 kgf ⋅
⋅⋅
⋅
m/56 lb ⋅
⋅⋅
⋅
ft)
Nut 37 N ⋅
⋅⋅
⋅
m (3.8 kgf ⋅
⋅⋅
⋅
m/27 lb ⋅
⋅⋅
⋅
ft)
Diesel engine
220R300012

Legend
(1) Bolt
(2) Nut
(3) Fuel Pipe Assembly





C24SE
Scan-2
14. Connect the transmission harness connectors and
clips. Connector: transfer neutral switch, 2W D -
4W D switch, actuator, car speed sensor, backup
switch, transmission neutral switch.
810R300069
Legend
(1) Neutral Switch Connector: Transmission
(2) Backup Switch Connector
(3) Speed Sensor Connector
(4) Actuator Connector
(5) 2W D - 4W D Switch connector
(6) Neutral Switch Connector: Transfer


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ISUZU KB P190 2007

7B1-70 MANUAL TRANSMISSION
15. Tighten the exhaust pipe fixing nuts to the specified
torque. (Diesel engine only)
Torque: 67 N ⋅
⋅⋅
⋅
m (6.8 kgf ⋅
⋅⋅
⋅
m/49 lb ⋅
⋅⋅
⋅
ft)







RTW 67BSH000101
16. Install the front propeller shaft.
Refer to the section “Front Propeller Shaft”.
17. Install the rear propeller shaft.
Torque: 59 N ⋅
⋅⋅
⋅
m (6.0 kgf ⋅
⋅⋅
⋅
m/43 lb ⋅
⋅⋅
⋅
ft)
18. Install the center bearing on crossmember.
Torque: 69 N ⋅
⋅⋅
⋅
m (7.0 kgf ⋅
⋅⋅
⋅
m/51 lb ⋅
⋅⋅
⋅
ft)
19. Install the gear control lever.
Torque: 19 N ⋅
⋅⋅
⋅
m (1.9 kgf ⋅
⋅⋅
⋅
m/14 lb ⋅
⋅⋅
⋅
ft)
20. Install the grommet assembly.
Torque: Screw 1.4 N ⋅
⋅⋅
⋅
m (0.14 kgf ⋅
⋅⋅
⋅
m/12 lb ⋅
⋅⋅
⋅
in)
Nut 7 N ⋅
⋅⋅
⋅
m (0.7 kgf ⋅
⋅⋅
⋅
m/61 lb ⋅
⋅⋅
⋅
in)





RTW 47BMH000101
Legend
(1) Grommet Assembly
(2) Floor Panel
(3) Front
21. Install the front floor console and rear floor console.
22. Install the gear control lever knob. To the female thread portion, apply 3 - 4 drops o
f
adhesive (TB1344 or LOCTITE 222 or equiv.) and
tighten the transmission knob.
Torque: 9 N ⋅
⋅⋅
⋅
m (0.9 kgf ⋅
⋅⋅
⋅
m/78 lb ⋅
⋅⋅
⋅
in)
After tightening to specified torque, rewrench the
knob until the direction of the shift pattern is in the
due position.
23. Connect the battery ground cable.



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ISUZU KB P190 2007

MANUAL TRANSMISSION 7B1-71
Transmission Case
Major Component






RTW 77BLF003701

Legend
(1) Gear Control Box Assembly and Gasket (7) Counter Front Bearing Snap Ring
(2) Rear Case Assembly (8) Front Cover (with Oil Seal)
(3) Intermediate Plate with Gear Assembly (9) Top Gear Bearing Snap Ring
(4) Transmission Case (10) Release Bearing: C24SE
(5) Release Bearing (with Spring): Diesel engine (11) Shift Fork: C24SE
(6) Shift Fork and Cover: Diesel engine



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ISUZU KB P190 2007

7B1-72 MANUAL TRANSMISSION
Disassembly
1. Clean the exterior of the unit with solvent.
2. Remove the drain plug from the transmission case and drain the lubricant.
3. Remove the clutch release bearing with spring from the transmission case.
4. Remove the shift fork, and boot.
5. Remove the front cover and gasket from the transmission case.
6. Remove the snap ring fixing counter front bearing.
7. Use a pair of snap ring pliers to remove the snap ring fixing top gear bearing.


226RS001
8. Remove the gear control box assembly.
9. Remove the rear case assembly from the transmission case and intermediate plate.
10. Remove the intermediate plate with gear assembl
y
from the transmission case.

Rear Oil Seal Replacement
220R300025

Legend
(1) Installer 5-8840-2797-0
(2) Grip 5-8840-0007-0
1. Remove the oil seal from the rear case and discard the used oil seal.
2. Apply engine oil to the new oil seal outer surfaces.
3.
Apply recommended grease (BESCO L2) or
equivalent to the oil seal lip.
4. Use the oil seal installer 5-8840-2797-0 and grip 5- 8840-0007-0 to install the oil seal to the rear case.
Reassembly
1. Apply recommended liquid gasket (Three Bond TB1215) or its equivalent to the transmission case,
intermediate plate and rear case fitting surfaces.
2. Install the intermediate plate with gear assembly to the transmission case.
Pull out the top gear shaft until the ball bearing snap
ring groove protrudes from the transmission case
front cover fitting face.
Avoid subjecting the mainshaft to sudden shock or
stress.
3. Install the rear case with oil seal on the intermediate plate, with gear, by performing the following steps.
• Cover the shaft splines with adhesive tape.
This will prevent damage to the oil seal lip.
• Tighten the transmission rear case bolts and
nuts to the specified torque.
Torque: 37 N ⋅
⋅⋅
⋅
m (3.8 kgf ⋅
⋅⋅
⋅
m/27 lb ⋅
⋅⋅
⋅
ft)


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ISUZU KB P190 2007

MANUAL TRANSMISSION 7B1-73
mm (in)



RTW 77BSH008601

Notes When Tightening the Bolt:
• After cleaning the bolt hole, air dry it thoroughly.
•
After cleaning the screw face of a removed or new
bolt, dry it thoroughly. Apply recommended liquid
gasket (LOCTITE 242) or its equivalent before
tightening.
4. Install a new gasket and gear control box assembly. Install the harness clips and brackets and then
tighten the four new gear control box bolts to the
specified torque.
Torque: 20 N ⋅
⋅⋅
⋅
m (2.0 kgf ⋅
⋅⋅
⋅
m/14 lb ⋅
⋅⋅
⋅
ft)
261R300004
5. Install the top gear bearing snap ring and counte
r
front bearing snap ring.
• Use a pair of snap ring pliers to install the snap
rings to the mainshaft and countershaft.
• The snap rings must be fully inserted into the
bearing snap ring groove.
6. Front cover with oil seal. Front Cover Oil Seal Replacement • Remove the oil seal from the front cover.
• Apply engine oil to the outer circumference o
f
new oil seal.
• Apply recommended grease to the oil seal lip.
• Use the oil seal installer 5-8840-0026-0 to install
the oil seal to the front cover.
220R300002
7. Install a new gasket and front cover to the transmission case.
NOTE: Take care not to damage the oil seal.
Notes When Tightening the Bolt:
• After cleaning the bolt hole, air dry it thoroughly.
•
After cleaning the screw face of a removed or new
bolt, dry it thoroughly.
Apply recommended liquid
gasket (LOCTITE 242) or its equivalent before
tightening.
Tighten the six front cover bolts to the specified
torque.
Torque: 25 N ⋅
⋅⋅
⋅
m (2.6 kgf ⋅
⋅⋅
⋅
m/19 lb ⋅
⋅⋅
⋅
ft)


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ISUZU KB P190 2007

7B1-84 MANUAL TRANSMISSION
6. Mesh the 1st-2nd and 3rd-4th synchronizers with
both the 1st and 3rd gears (double engagement).


226RS015
This will prevent the mainshaft from turning.
7. Install the new mainshaft hub nut. Use the mainshaft nut wrench 5-8840-2156-0 to
tighten the mainshaft nut to the specified torque.
Torque: 137 N ⋅
⋅⋅
⋅
m (14.0 kgf ⋅
⋅⋅
⋅
m/101 lb ⋅
⋅⋅
⋅
ft)
226RW 214


8. Use a punch to stake the mainshaft nut.


226RW 153
9. Install the needle bearing, 5th block ring, and 5th gear.
10.
Apply engine oil to the counter reverse gear and the
reverse gear.
Install the counter reverse gear to the counter shaft.
The reverse gear projection must be facing the
intermediate plate.


226RW 151




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ISUZU KB P190 2007

MANUAL TRANSMISSION 7B1-87

226RS024
• Apply grease to the thrust washer and the lock
ball.
• Install the thrust washer and the lock ball.
16. Install the thrust plate and retainer.
17. Apply engine oil to the bearing inner and oute
r
circumference.
Use the installer 5-8840-2159-0 to install the ball
bearing to the mainshaft.
226L100002
18.
Apply engine oil to the oil seal collar inner
circumference.
Install the oil seal collar to the mainshaft by using
the installer 5-8840-2159-0.
19. Install the oil seal collar snap ring.




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ISUZU KB P190 2007

MANUAL TRANSMISSION 7B1-95
Clutch Hub Spline Play
• Set a dial indicator to the clutch hub which requires
measuring.


226RS042
• Move the clutch hub as far as possible to the right
and left.
Note the dial indicator reading.
If the measured value exceeds the specified limit,
the clutch hub must be replaced.
Clutch Hub Spline Play
Standard Limit
1st-2nd 3rd-4th 0 - 0.1 mm
(0 - 0.004 in) 0.2 mm
(0.008 in)
Rev. 5th 0 - 0.2 mm
(0 - 0.008 in) 0.3 mm
(0.012 in)
Ball Bearing Play
• Use a dial indicator to measure the ball bearing play.
Ball Bearing Play
Limit: 0.2 mm (0.008 in)





226RS043

Reassembly
1. Install the center roller bearing to the counter gear
shaft.
•
Apply engine oil to the bearing inner and outer
circumferences.
• Install the roller bearing in the proper direction.
NOTE: Check that the outer race moves only in the
direction of the arrow.


226RS044
2. Install the front roller bearing by performing the following steps.
• Use the bearing installer 5-8840-2194-0 to install
the front roller bearing inner race to the counte
r
gear shaft.
• Install the outer race and roller assembly.
The snap ring groove must be facing the
transmission front side.



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ISUZU KB P190 2007

7B1-96 MANUAL TRANSMISSION
• Use the bearing installer 5-8840-2194-0 to install
the ring.




RTW 57BSH000101
Legend
(1) Ring
(2) Outer Race and Roller Assembly
(3) Inner Race
3. Install the bearing snap ring to the counter gear
shaft.
4.
Apply engine oil to the needle bearing and the 2nd
gear thrust surfaces.
Install the needle bearing and the 2nd gear to the
mainshaft.
The 2nd gear dog teeth must be facing the
transmission rear side.


226RS046

5.
Assemble the 2nd inside ring, 2nd outside ring, and
the 2nd block ring.
•
Apply engine oil to the synchronizer ring friction
surfaces.


226RS047
Legend
(1) Block Ring
(2) Outside Ring
(3) Inside Ring
(4) 2nd Gear
(5) Needle Bearing



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ISUZU KB P190 2007