wheel torque ISUZU TF SERIES 2004 User Guide

4B-18 REAR AXLE

17.
Install brake pipe and ABS sensor and tighten it to
the specified torque.

Torque :

ABS Sensor
8 N
m (0.8 kg
m/69 lb
ft)

Brake Pipe
16 N
m (1.6 kg
m/12 lb
ft)
420R30003

18.
Bleed brake pipe at the wheel cylinder. (Refer to
the section “Power-assisted Brake System”)
19.
Install brake drum.


Install propeller shaft. (Refer to Section “Rear
Propeller Shaft”.)


Refill differential oil.


Install wheel and tire.


Lower vehicle.

4C1-6 FRONT WHEEL DRIVE
RECOMMENDED LIQUID GASKET

Type Brand Name Manufacture Remarks

RTV*
Silicon Base ThreeBond 1207B
ThreeBond 1207C

ThreeBond 1215
Three Bond
Three Bond

Three Bond
For Engine Repairs


For Axle Case
Repairs, T/M
Water Base ThreeBond 1141E Three Bond For Engine Repairs

Solvent ThreeBond 1104
BelcoBond 4
BelcoBond 401
BelcoBond 402 Three bond
Isuzu
Isuzu
Isuzu
For Engine Repairs
Anerobic LOCTITE 515
LOCTITE 518 Loctite
Loctite All
* RTV : Room Temperature Vulcanizer

Note :
1. It is very important that the liquid gaskets listed above or their exact equivalent be used on the vehicle.
2. Be careful to use the specified amount of liquid gasket.
Follow the manufacture's instructions at all times.
3. Be absolutely sure to remove all lubricants and moisture from the connecting surfaces before applying
the liquid gasket.
The connecting surfaces must be perfectly dry.
4. LOCTITE 515 and LOCTITE 518 harden upon contact with a metal surface.
Do not apply LOCTITE 515 or LOCTITE 518 between two metal surfaces having a clearance of greater
than 0.25 mm (0.01 in). Poor adhesion will result.

RECOMMENDED THREAD LOCKING AGENTS

LOCTITE Type LOCTITE Color Application Steps

LOCTITE 242
Blue 1. Completely remove all lubricant and moisture from the bolts and
the female threaded surfaces of the parts to be joined.
The surfaces must be perfectly dry.

LOCTITE 262

Red 2. Apply LOCTITE to the bolts.


LOCTITE 270

Green

LOCTITE 271

Red
3. Tighten the bolts to the specified torque.
4. Wait at least on hour before continuing the installation procedure.

4C1-16 FRONT WHEEL DRIVE
17. Support the differential case by the jack.
18. Remove the front axle mounting bolts and nuts, lower the
jack slowly. Remove the left side drive shaft end from the
knuckle, then lower the axle assembly from the vehicle.
CAUTION :
1. During the work, be sure that the axle assembly is
supported securly.
2. Be careful not to damage the bellows of the power
steering unit by interference.
3. Be careful not to damage the breater pipe and breater
pip bracket of the shift on the fly by interference.


Installation
1. Support the differential case by the jack.
2. Jack up the front drive axle assembly, install the left side
drive shaft to the knuckle, then install the mount bolts and
nuts.
CAUTION :
1. Be careful not to damage the bellows of the power
steering unit by interference.
2. Be careful not to damage the breater pipe and breater
pip bracket of the shift on the fly by interference.
3. When installing the drive shaft to the knuckle, be
careful not to damage the oil seal inside of the knuckle.

RTW34CSH000101
3. Tighten the mounting bolts and nuts to the specified torque.
Torque : 169 N·m (17.2kg·m/124 lb ft)



4. Install the right side knuckle with lower control arm to the
upper control arm.
Refer to Knuckle in Suspension section.
CAUTION :
When insert the drive shaft to the knuckle, be careful not
to damage the oil seal inside of the knuckle.

5. Align the bolt hole of the lower control arm, install the bolts
and nuts.

FRONT WHEEL DRIVE 4C1-17
NOTE :
Adjust the buffer clearance before tighten the bolts and nuts of
the lower control arm.

6. Install the breather hose of the front axle.
7. Install the actuator connector of the shift on the fly. (With
shift on the fly)
8. Install the tie-rod end of the power steering unit to the
knuckle, tighten the nut to the specified torque.
Torque : 98 N·m (10.0kg·m/73 lb ft)

9. Install lower bolts and nuts of the shock absorber, tighten it
to the specified torque.
Torque : 93 N·m (9.5kg·m/69 lb ft)
10. Install lower nuts of the stabilizer link, tighten it to the
specified torque.
Torque : 50 N·m (5.1kg·m/37 lb ft)
11. Install the suspension crossmember.
12. Install the torsion bar.
Refer to Torsion Bar in Suspension section.
13. Install the front propeller shaft.
Refer to Front Propeller Shaft in this section.
14. Install the hub and disc assembly and adjust the bearing
preload.
Refer to Front Hub and Disc in this section.
15. Install the wheel speed sensor of the antilock brake
system.
16. Install the brake caliper. Tighten the bolt of the caliper
bracket to the specified torque.
Torque : 155 N·m (15.8kg·m/115 lb ft)
17. Install the stone guard.
18. Install the tire and wheel.
19. Lower the vehicle, adjust the trim height.
Refer to Trim Height Adjustment in Steering section.
20. Tighten the bolts and nuts of the lower control arm to the
specified torque.
Refer to Lower Control Arm in Suspension section.

FRONT WHEEL DRIVE 4C1-21

Bushing Replacement
 Remove the bushings using a remover 5-8840-2309-0 and
hammer.




By using installer and base 5-8840-2309-0, press fit the
bushings into the bracket.

Reassembly
1. Install DOJ case to bracket.
2. Install oil seal and fix snap ring.
Discard the used oil seal, snap ring and install a new one.
3. Install bearing and fix snap ring.
Discard the used snap ring and install a new one.
4. Install bracket to axle case. Tighten the bracket bolt to the
specified torque.
Torque : 116 N·m (11.8kg·m/85 lb ft)
5. Apply 135g of the specified grease in UJ.
6. Install dust seal for UJ.
Discard the used dust seal and install a new one.

Legend
1. Bellows
2. Shaft
7.
Apply a thin coat of grease to the shaft for smooth
installation then install bellows.
CAUTION :
During bellows assembly, be sure to insert both ends of
the bellows into the case and shaft grooves.

FRONT WHEEL DRIVE 4C1-29
INSPECTION AND REPAIR
Make all necessary adjustments, repairs, and part replacements if wear, damage, or other problems are discovered
during inspection.



Ring gear, pinion gear

Bearing


Side gear, pinion gear, cross pin


Differential cage, carrier


Thrust washer


Oil seal


Visual Check
Inspect the following parts for wear, damage, or other
abnormal conditions.



Ring Gear Replacement
(1) The ring gear should always be replaced with the drive
pinion as a set.
(2) When installing the ring gear, apply LOCTITE 271 o
r
equivalent to the threaded hole and bolt.
(3) Tighten the fixing bolts in a diagonal sequence as
illustrated.
(4) Discard used bolts and install new ones.
Bolt Torque N
m (kgf
m/lb
ft)

107.9
9.8 (11
1/79.6
7.2)




Clearance Between the Differential Pinion
and the Cross Pin
mm(in)

Standard Limit
0.05 - 0.10 (0.002 - 0.004) 0.2 (0.008)



Clearance Between the Side Gear and the
Differential Box
mm(in)

Standard Limit
0.03 - 0.10 (0.001 - 0.004) 0.15 (0.006)

4C1-32 FRONT WHEEL DRIVE


5. Cross Pin
(1) Be sure to install the cross pin so that it is in alignment with
the lock pin hole in the differential cage.


(2)
Adjust the backlash between the side gear and the pinion
gear.
mm(in)
Backlash 0.10 - 0.20 (0.004 - 0.008)
Thickness of thrust washers available
mm(in)

1.00, 1.05, 1.10 (0.039, 0.041, 0.043)



6. Lock Pin
After lock pin installation, stake the cage to prevent discharge
of the lock pin.


7. Ring Gear
When installing the ring gear, apply LOCTITE 271 or
equivalent to the threaded hole and bolt.







8. Bolt
Tighten the bolts in diagonal sequence as illustrated.
Bolt Torque N
m (kgf
m/lb
ft)

107.9
9.8 (11
1/79.6
7.2)
Note :
Discard used bolts and install new ones.
Note that all bolts have a left hand thread.

FRONT WHEEL DRIVE 4C1-35








Tighten the nut to the specified torque.
N
m (kgf
m/lb
ft)
New bearing 2.26 (23/20)
Used bearing0.98 - 1.18
(10 - 12/8.7 - 10.4)
(2) Clean the side bearing bores. Install the dial indicator with
the discs and Arbor. Install and tighten the bearing caps to
the specified torque.
Torque N

m (kgf

m/lb

ft)

98.1
9.8 (10.0
1.0/72.3
7.2)

1 Dial indicator : 5-8840-0126-0
(J-8001)
2 Disc (2 pcs.) : 5-8840-2088-0
(J-23597-8)
3 Arbor : 5-8840-0128-0
(J-23597-1)
4 Gage plate : 5-8840-2087-0
(J-23597-7)



(3) Set the dial indicator to “0”. Place it on the mounting post of
the gaging arbor with the contact button touching the
indicator pad. Force the dial indicator downward until the
needle has made a half turn clockwise. Tighten down the
dial indicator in this position.



(4) Position the plunger on the gage plate. Move the gaging
arbor slowly back and forth and locate the position at which
the dial indicator shows the greatest deflection. At this
point, once again set the dial indicator to “0”.
Repeat the procedure to verify the “0” setting.

4C1-38 FRONT WHEEL DRIVE






12. Flange Nut and Washer

(1) Apply lubricant to the pinion threads.
(2) Tighten the nut to the specified torque using the pinion
flange holder.
Pinion flange holder : 5-8840-0133-0
(J-8614-01)
Torque N

m (kgf

m/lb

ft
)
176.6 - 274.7 (18 - 28/130 - 202)
Discard used flange nut and install new one.






(3) Pinion bearing preload
(a) Measure the bearing preload by using a torque meter. Note
the scale reading required to rotate the flange.
(b) continue tightening until the specified starting torque is
obtained.
Starting Torque N

m (kgf

cm/lb

in
)
0.63 - 1.13 (6.5 - 11.5/5.7 - 9.9)


13. Adjust Shim
(1)
Attach the side bearing to the differential assembly without
shims. Support the opposite side using a pilot to prevent
bearing damage.

1 Installer : 9-8522-1164-0
(J-24244)
2 Drive handle : 5-8840-0007-0
(J-8092)
3 Pilot : 9-8521-1743-0
(J-8107-2)



(2) Insert the differential cage assembly with bearing oute
r
races into the side bearing bores of the carrier.

4C1-40 FRONT WHEEL DRIVE


18. Bolt
Bolt Torque N

m (kgf

m/lb

ft)

98.1
9.8 (10.0
1.0/72.3
7.2)


Measure the amount of run-out of the ring gear at its rear face.
mm(in)
Standard Limit
0.02 (0.001) 0.05 (0.002)



Gear Tooth Contact Pattern Check and Adjustment
Apply a thin coat of prussian blue or equivalent to the faces of
the 7 - 8 teeth of the ring gear. Check the impression of
contact on the ring gear teeth and make necessary adjustment
as described below if the contact is abnormal.