engine ISUZU TF SERIES 2004 Workshop Manual

7B1-12 MANUAL TRANSMISSION

NOTE: Be sure not to insert the remover between the
wedge collar and the clutch.
220RW063
220RW064

220RW019

Legend
(1) Pressure Plate Assembly
(2) Release Bearing
(3) Wedge Collar
21. Remove transmission retaining nuts and bolts(16).
Remove transmission assembly (17) from the
vehicle.
Installation
1. Apply a thin coat of molybdenum disulfide grease to
the top gear shaft spline.
2. Slowly operate the transmission jack until the front
of transmission is aligned with the rear of the
engine.
The slope of the engine and the transmission must
be the same.
3. Align the top gear shaft spline with the clutch driven
plate spline.

MANUAL TRANSMISSION 7B1-13

4. Install the transmission assembly (17) to the engine.
Tighten the transmission nuts and bolts (16) as
shown in the figure.


Diesel engine
RTW37BLF000901

MANUAL TRANSMISSION 7B1-15

C24NE
RTW37BLF0002
220RS006
5. Apply a force of about 113N (26 Ib) to the tip of the
shift fork in the direction of the transmission to
engage the clutch pressure plate and release
bearing. (6VE1 only)
NOTE: A clicking sound is heard when the release
bearing and the tip of the diaphragm spring engage
each other.
Check to see if they are securely engaged by pushing
the tip of the shift fork toward the engine while applying
a force of about 25 N (5.5 lb). If the shift fork will not
move, then they are securely engaged.

7B1-16 MANUAL TRANSMISSION

6. Install starter(15). (Diesel engine only)
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 kg




m/56 lb




ft)
7. Install the rear support rubber (14) on the
transmission and tighten the nuts to the specified
torque.
Torque: 52 N




m (5.3 kg




m/38 lb




ft)
8. Install the middle part of transmission crossmember
(12) and bolts.
Tighten the nuts to the specified torque.
Torque: 67 N




m (6.8 kg




m/49 lb




ft)
9. Install engine rear mount nuts (11) fixing on
transmission crossmember (12).
Torque: 52 N




m (5.3 kg




m/38 lb




ft)
Remove the transmission jack from transmission
side.
10. Apply grease to top hole portion of the shift fork.
Install slave cylinder (10) and tighten the bolts to the
specified torque.
Torque: 76 N




m (7.7 kg




m/56 lb




ft)
11. Install the fuel pipe brackets (9) on the transmission.
Install the fuel pipe assembly to the fuel brackets.
Torque: Bolt & Nut 76 N




m (7.7 kg




m/56 lb




ft)
Nut 37 N





m (3.8 kg





m/28 lb





ft)
Diesel engine
220R300012

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




6VE1, C24NE
Scan-1
12. Connect transmission harness connectors and clip.
Connector: neutral switch, car speed sensor, and
backup switch.
13. Tighten exhaust pipe fixing nuts (7) to the specified
torque. (Diesel engine only)
Torque: 67 N




m (6.8 kg




m/49 lb




ft)
150R300003

7B1-18 MANUAL TRANSMISSION

Transmission Case
Major Component
RTW37BLF0005
Legend

(1) Gear Control Box Assembly and Gasket (9) Front Cover (with Oil Seal)
(2) Speedometer Sensor and Driven Gear (10) Top Gear Bearing Snap Ring
(3) Rear Cover Assembly (11) Release Bearing : C24NE
(4) Intermediate Plate with Gear Assembly (12) Shift Fork : C24NE
(5) Transmission Case (13) Fulcrum Bridge : 6VE1
(6) Release Bearing (with Spring) : Diesel engine (14) Release Bearing : 6VE1
(7) Shift Fork : Diesel engine (15) Shift Fork : 6VE1
(8) Counter Front Bearing Snap Ring

MANUAL TRANSMISSION 7B1-19

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
(6)(11) from the transmission case.
4. Remove the shift fork (7)(12), and boot. (Diesel
engine, C24NE)
5. Remove the shift fork snap pin. (6VE1)
6. Remove the shift fork pin and shift fork from the
fulcrum bridge. (6VE1)


RTW47BSH000601

Legend
(1) Shift fork pin
(2) Shift fork
(3) Release bearing
7. Remove the fulcrum bridge from the transmission
case. (6VE1)
RTW37ASH0002

Legend
(1) Fulcrum bridge
8. Remove the front cover (9) and gasket from the
transmission case.
9. Remove snap ring (8) fixing counter front bearing.
10. Use a pair of snap ring pliers to remove the snap
ring (10) fixing top gear bearing.

226RS001
11. Remove the speedometer sensor (2).
Remove the plate (2).
Remove the driven gear bushing and driven gear
(2).
NOTE : Apply a reference mark to the driven gear
bushing before removal.
12. Remove gear control box assembly (1).

MANUAL TRANSMISSION 7B1-21

7. Install the speedometer sensor (2).
Torque: 27 N




m (2.8 kg




m/20 lb




ft)
225R300001
8. Install top gear bearing snap ring (10) and counter
front bearing snap ring (8).


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.
9. Front cover with oil seal (9).
Front Cover Oil Seal Replacement


Remove the oil seal from the front cover.


Apply engine oil to a new oil seal outer
circumference.


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.

220R3000020
10. Install a new gasket and front cover (9) to the
transmission case.
NOTE: Take care not to damage the oil seal.
Notes When Tightening the Bolt:


After cleaning the bolt hole, dry it thoroughly with air.


After cleaning the screw face of a removed bolt or
new one, dry it thoroughly. Apply recommended
liquid gasket (LOCTITE 242) or its equivalent before
tightening it.
Tighten six front cover bolts to the specified torque.
Torque: 25 N





m (2.6 kg





m/19 lb





ft)
11. Apply molybdenum disulfide type grease to the
areas as shown in the figure and install shift fork (7).
(Diesel engine, C24NE)
F07L100026

MANUAL TRANSMISSION 7B1-33

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 (23) to the specified
torque.
Torque: 137 N




m (14 kg




m/101 lb




ft)
226RW214


8. Use a punch to stake the mainshaft nut (23).

226RW153
9. Install needle bearing (22), 5th block ring (21), and
5th gear (20).
10. Apply engine oil to the counter reverse gear (19) and
the reverse gear (26).
Install the counter reverse gear (19) to the counter
shaft.
The reverse gear projection must be facing the
intermediate plate.

226RW151

7B1-36 MANUAL TRANSMISSION


226RS024


Apply grease to the thrust washer and the lock
ball.


Install the thrust washer and the lock ball.
16. Install thrust plate (8) and retainer (7).
17. Install the retainer snap ring (6), clip (5),
speedometer drive gear (4) and bearing snap ring
(3).
18. Apply engine oil to the bearing (2) inner and outer
circumference.
Use the installer 5-8840-2159-0 to install the ball
bearing (2) to the mainshaft.
226L100002
19. Install the bearing snap ring (1).

7B1-44 MANUAL TRANSMISSION

Clutch Hub Spline Play

Set a dial indicator to the clutch hub to be
measured.

226RS042


Move the clutch hub as far as possible to both the
right and the 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 center roller bearing (29) to counter gear
shaft (30).


Apply engine oil to the bearing inner and outer
circumferences.

Install the roller bearing in the proper direction.
NOTE: Check that outer race moves only in the
direction of arrow.

226RS044
2. Install front roller bearing (28) by performing the
following steps.

Use bearing installer 5-8840-2194-0 to install the
front roller bearing inner race to the counter gear
shaft (30).


Install the outer race and roller assembly.
The snap ring groove must be facing the
transmission front side.