1997 ISUZU TFS SERIES oil

FRONT WHEEL DRIVE 4C1-71
14.Outer Bearing
Outer race ; outer bearing
Install the outer race by driving it into the hub.
Installer : 5-8840-0054-0
(J-29015)
Grip : 5-8840-0007-0
(J-8092)
15.Inner Bearing
Outer race ; inner bearing
Install the outer race by driving it into the hub.
Installer : 5-880-2119-0
(J-36829)
Grip : 5-8840-0007-0
(J-8092)
16.Oil Seal
Installer : 5-8840-2120-0
(J-36830)
Grip : 5-8840-0007-0
(J-8092)
17.Hub and Disc Assembly
(1) Apply grease in the hub.
(2) Apply grease (Besco L-2 or equivalent) to the outer and
inner bearing.
g(oz)
Hub 35 (1.23)
Outer bearing 10 (0.35)
Inner bearing 15 (0.53)
18.Hub Nut
(1) Turn the place where there is a chamfer in the tapped hole
to the outer side, and attach the nut.
Wrench : 5-8840-2117-0
(J-36827)

4C1-72 FRONT WHEEL DRIVE
Preload Adjustment
Tighten the hub nut at 29.4 Nm (3 kgfm / 21.716 lbft), then
loosen the nut to the full.
Tighten the hub nut at the value given below, using a spring
scale on the wheel pin.
Bearing Preload kg(lb)
New bearing and New oil seal 2 -2.5 (4.4 - 5.5)
Used bearing and New oil seal 1.2 - 1.8 (2.6 - 4.0)
If the measured bearing preload is outside the specifications,
adjust it by loosening or tightening the bearing nut.
19.Lock Washer
Turn the side with larger diameter of the tapered bore to the
vehicle outer side, and attach the washer.
If the bolt holes in the lock plate are not aligned with the
corresponding holes in the nut, reverse the lock plate.
If the bolt holes are still out of alignment, turn in the nut just
enough to obtain alignment,. Screw is to be fastened tightly so
its head may come lower than the surface of the washer.
20.Body Assembly
Apply adhesive (Loctite 15 or equivalent) to the both joining
faces.
21.Snap Ring and Shims
Adjust the clearance between the free wheeling hub body and
the snap ring.
Clearance mm(in)
0 - 0.3 (0 - 0.01)
Adjust Shims Available mm(in)
0.2, 0.3, 0.5, 1.0
(0.008, 0.011, 0.020, 0.039)
22.Cover Assembly
Align stopper nails to grooves of body.

4C1-80 FRONT WHEEL DRIVE
TROUBLESHOOTING
Refer to this Section to quickly diagnose and repair front axle problems. Each troubleshooting chart has three
headings arranged from left to right.
(1) Checkpoint (2) Trouble Cause (3) Countermeasure
This Section is divided into ten sub-sections:
42 Model
1. Wanders and pulls
2. Front wheel shimmy
44 Model
1. Oil leak at front axle
2. Oil leak at pinion shaft
3. Noises in front axle drive shaft joint
4. Noises in front axle
5. Wanders and pulls
6. Front wheel shimmy
7. Automatic locking free wheel hub
1) Does not lock or locks only on one side
2) Does not freewheel or freewheels only to one side
3) Noises in automatic locking free wheel hub
Propeller shaft
1. Noise
2. Vibration

FRONT WHEEL DRIVE 4C1-83
44 MODEL
1. OIL LEAK AT FRONT AXLE
Checkpoint Trouble Cause Countermeasure
Front axle housingRepair or replaceCracked
Replace the oil sealW orn or defective oil seal
NG NG
OKOil seal
2. OIL LEAK AT PINION SHAFT
Oil sealReplace the oil sealW orn or defective
Correct the oil levelToo much gear oil
NG NG
OKGear oil level
Pinion flangeTighten or replaceLoose or damaged NG OK
3. NOISES IN FRONT AXLE DRIVE SHAFT JOINT
Replace the drive shaft joints
and bellowsBroken or worn NGDrive shaft joints and bellows
(B.J and DOJ)

4C1-84 FRONT WHEEL DRIVE
4. NOISES IN FRONT AXLE
Checkpoint Trouble Cause Countermeasure
Replenish the gear oilInsufficient gear oil NG
Replace the wheel bearing
Replace the pinion shaft
bearing
Replace the ring gear pinion
gear or side gear
Replace the gear oil
W heel bearingWorn
Pinion shaft bearingWorn
W orn or chipped
W rong or poor grade gear oil
Ring gear, pinion gear or side
gear
Adjust the backlashDrive pinion to ring gear
backlashToo much or too little backlash
NG NG NG NG NG
OK OK
OK
OK
Oil level
Tighten or replaceDifferential bearingLoose or worn NG OK

4C1-92 FRONT WHEEL DRIVE
ITEM NO. ILLUSTRATION PART NO. PART NAME
FAL-42
5-8840-0126-0
(J-8001)Dial indicator
(for 167mm,194mm)
FAL-37
5-8840-2086-0
(J-23597-4)Disc (2 pcs. required)
(for 167mm)
FAL-43
5-8840-0128-0
(J-23597-1)Arbor
(for 167mm, 197mm)
FAL-38
5-8840-2088-0
(J-23597-8)Disc (2 pcs. required)
(for 194mm)
FAL-59
9-8522-1165-0
(J-6133-01)Pinion bearing installer
(for 4WD)
FAL-52
9-8522-1275-0
(J-24250)Pinion oil seal installer
(for 194mm)
FAL-53
5-8522-0046-0
(J-26234)Pinion oil seal installer
(for 167mm)
FAL-55
5-8840-0138-0
(J-29036)Side bearing installer
(for 167mm)
FAL-56
9-8521-1164-0
(J-24244)Side bearing installer
(for 194mm)

FRONT WHEEL DRIVE 4C1-93
ITEM NO. ILLUSTRATION PART NO. PART NAME
FAL-57
5-8522-0053-0
(J-29016)Outer bearing installer
(for 2WD)
FAL-58
5-8522-0054-0
(J-29015)Inner bearing installer
(for 2WD)
FAL-54
5-8522-0051-0
(J-33161)Hub oil seal installer
(for 2WD)
FAL-62
5-8840-2117-0
(J-36827) Hub nut wrench
FAL-17
5-8840-2119-0
(J-36829)Outer bearing inner race
installer (for 4WD)
FAL-19
5-8840-2120-0
(J-36830) Oil seal installer (for 4WD)
FAL-18
5-8840-0054-0
(J-29015)Outer bearing outer race
installer (for 4WD)
FAL-61
5-8840-2137-0
(J-38194) Inner cam installer
FAL-395-8840-2126-0Auto locking shim gauge
(for 4WD)

5-22 BRAKES
1. Fill the brake fluid reservoir with brake fluid.
Handle the brake with reasonable care to avoid spillage as it
is damaging to paint.
Note:
Take care to prevent foreign matter from entry, when
replenishing or replacing brake fluid.
When pouring brake fluid, if diaphragm in the oil tank cap
is stretched, be sure to place it into original position,
(fasten it), and then cap it.
2. Connect a vinyl pipe to the bleeder screw on the wheel
cylinder, caliper bode or LSPV and the other end of the pipe
in a transparent container.
3. Pump the brake pedal several times and hold it depressed.
Loosen the bleed screw to release brake fluid together with
air bubbles.
Tighten the bleeder screw before pressure is released
completely.
4. Repeat the step in paragraph 3 above until the air bubbles
disappear completely.
Securely tighten the bleeder screw when the air bubbles
disappear completely.
5. Repeat the step in paragraph 4 above on the remaining
wheel cylinders.
Bleed the system starting with rear side farthest from the
brake fluid reservoir.
6. Fill the brake fluid reservoir to the specified level.
Pour brake fluid carefully so as not to produce air bubbles.
7. If the cap diaphragm is stretched, fasten the diaphragm and
the sure to cap it after it is placed to the original position.
Note:
Never reuse the old brake fluid.