brake ISUZU TROOPER 1995 Owner's Manual

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30-6 REAR SUSPENSION
TRAILING LINK
2
Fig. 30-7
l••l REMOVAL
1. Parking brake cable
• Remove the parking brake cable from the
trailing link.
2. Bolt and nut
3. Trailing link
IL•I INSPECTION AND REPAIR
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
1. Trailing link
2. Rubber bushing
• Remove the rubber bushing (Fig. 30-8).
1®..1 Remover: J-39214
• Install the rubber bushing (Fig. 30-9).
!®I Installer : J-39214
NOTE:
When mounting rubber bushings, be sure not to use
grease on bushings
or any other nearby part.
2
J-39214·2
J-39214·1
Removal steps 1. Parking brake cable 2. Bolt and nut
3. :rrailing link
I
nsta llatio n steps
To install, follow the removal steps in the reverse order. ~
..----- 1-~
Fig. 30-8
•

J-39214-2 J-39214-1
Fig. 30-9
1••1 INSTALLATION
3. Trailing link
~ • Make sure that the trailing link is in its correct
1.=.1 position (Fig. 30-1 0).
NOTE:
When mounting trailing link, be sure not to use grease
on bushings or any other nearby part.
2. Bolt and nut
NOTE:
Tighten the bolts and nuts lightly, and retighten to the
specified torque after the
vehicle is at curb height.
1~1 Torque N·m (lb·ft)
1. Parking brake cable
W CAUTION:
137 (101)
VI The parking brake cable should not be
overstrained or
slackened.
UP
Fig. 30-10
REAR SUSPENSION 30-7

30-8 REAR SUSPENSION
CENTER LINK
2
Removal steps
1. Speed sensor cable
• If equipped with Antilock Brake System (ABS)
2. Speed sensor
cable bracket (If equipped with ABS)
3.
Bolt and nut 4. Center link
Installation
steps
To
install, follow the removal steps in the reverse order.
1•+1 REMOVAL
Fig. 30-11
NOTE:
1.
2.
3.
Speed sensor cable (If equipped with ABS)
• Remove the speed sensor cable from the
center
link.
Speed sensor cable bracket (If equipped with
ABS)
• Remove the speed sensor cable bracket from
the frame.
Bolt and nut
4. Center link
~ INSPECTION AND REPAIR
Make necessary correction or parts replacement if
wear, damage, corrosion or any other abnormal
condition are found through inspection.
1. Center link
2. Rubber bushing
• Remove the rubber bushing (Fig. 30-12).
1®1 Remover : J-39214
• Install the rubber bushing (Fig. 30-13).
!®..I Installer : J-39214
When mounting rubber bushings, be sure not to use
grease on bushings
or any other nearby part.
J-39214-2
J-39214·1
Fig. 30-12
..

WHEELS AND TIRES 3E-1
SECTION 3E
WHEELS AND TIRES
W CAUTION:
When fasteners are removed, always reinstall them at the same location from which they were removed.
If a fastener needs to be replaced, use the correct part number fastener for that application. If the correct
part
number fastener is not available, a fastener of equal size and strength (or stronger) may be used.
Fasteners
that are not reused, and those requiring thread locking compound, will be called out. The correct
torque value must be used when installing fasteners that require it. If the above conditions are not
followed, parts or system damage could result.
CONTENTS
General Description . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 E -1 Unit Repair .......................................... 3E-7
Diagnosis ........................................... 3E-2 Tires ............................................... 3E-7
Irregular and Premature Wear ................ 3E-2 Wheels ............................................ 3E-7
Inflation of Tires ................................. 3 E- 3 General Balance Procedure ................... 3E-8
Diagnosis List. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 3 E- 3 Balancing Wheel and Tire ...................... 3E-8
On-Vehicle Service ................................ 3E-6 Main Data and Specifications .................... 3E-9
Wheels ............................................ 3E-6 General Specifications ......................... 3E-9
Torque Specifications .......................... 3E-9
GENERAL DESCRIPTION
Replacement wheels or tires must be equivalent to
the originals in load capacity, specified dimension
and mounting configuration. Improper size or type
may affect bearing life, brake performance,
speedometer/odometer calibration, vehicle ground
clearance and tire clearance to the body and chassis.
p 245
T Tire type P -Passenger T -Temporary C -Commercial
Section
width (Millimeters) 215 225
245
ETC.
Metric tire sizes 70 R 16 T ,...
Aspect ratio I Rim diameter
(Section height)
(Section
width) X 100 (Inches)
14 60 70
80 ETC.
15
16 ETC.
Construction type
R-Radial
B - Bias-belted
D - Diagonal (Bias)
METRIC TIRE SIZE FORMAT
All model are equipped with metric sized tubeless
steel belted radial
tires. Correct tire pressures and
driving habits have an important influence on tire life.
Heavy cornering, excessively rapid acceleration and
unnecessary sharp braking increase
premature and
uneven wear.
16 X 7 JJ
I
~pe of flange
Rim width 5% 5.5 in.
6 6.0 in. 7 7.0 in.
Rim diameter Rim width
14 14 in. 15 15 in. 16 : 16 in.
I Off Set RIM SIZE FORMAT
Fig. 3E-1

3E 6 WHEELS AND TIRES
ON-VEHICLE SERVICE
WHEELS
1. Wheel lug nut
Fig. 3E-8
E) REMOVAL
1. Wheel lug nut
• Loosen wheel nut by approximately 180• (half a
rotation) and raise the
vehicle. Then remove
the nuts.
2. Wheel and tire
NOTE:
Never use heat to loosen a tight wheel lug nut. The
application
of heat to the hub can shorten the life of the
wheel and may cause damage to wheel bearings.
1••1 INSTALLATION
2. Wheel and tire
1.
Wheel lug nut
• Tighten the wheel lug nuts to the specified
torque in numerical
order (Fig. 3E-9).
l~l Torque N-m (lb·ft) I 118 (87)
Fig. 3E-9
\fl CAUTION: .
'({ Before installing wheels, remove any build-up of
corrosion on the wheel mounting surface and
brake disc
mounting surface by scraping and wire
brushing. Installing wheels without good metal­
to-metal contact at mounting surfaces can cause
wheel nuts to loosen, which can later allow a
wheel to come off while the vehicle is moving.
NOTE:
Valve caps should be on the valve stems to keep
dust and water out.
•

4A-2 PROPELLER SHAFT
ON-VEHICLE SERVICE
Preparation:
• Jack up the vehicle and support it on the chassis •
stands. Gear
shift
lever should be placed in neutral
position and parking brake released.
REAR PROPELLER SHAFT
1. Bolt, nut and washer
3. Rear propeller shaft
~
Transfer side
Rear axle side
Fig. 4A-2
B REMOVAL
\fl NOTE:
VI Apply alignment marks on the flange at the rear
propeller shaft both front and rear side (Fig. 4A-3).
1. Bolt, nut and washer (Rear axle side)
2. Bolt, nut and washer (Transfer side)
3. Rear propeller shaft
Fig. 4A-3
1••1 INSTALLATION
3. Rear propeller shaft
\flNOTE:
VI • Never install the shaft assembly backwards.
• Completely remove the black paint from the
connecting surface
of flange coupling on each
end
of propeller shaft. Clean so that no foreign ~
matter will be caught in between.
• After installing the propeller shaft, be sure to
apply black paint to exposed area (other than
connecting surface)
of the entire surface of
flange coupling (Fig. 4A-4).
Fig. 4A-4
2. Bolt, nut and washer (Transfer side)
1.
Bolt, nut and washer (Rear axle side)
• Align the mark which is applied at removal.
~~~ Torque N·m (lb·ft) I 63 (46)
•

48-2 REAR AXLE
REAR AXLE ASSEMBL V
Antilock brake system
sensor
hole
Without antilock
brake system
Fig. 48-1
The ring gear
is bolted onto the differential cage with
12 bolts.
The differential cage is supported in the axle housing
by two tapered roller bearings. The differential and
ring gear are
located in relationship to the pinion by
using selective shims and spacers between the
bearing and the
axle housing. To move the ring gear,
shims are deleted from one side and an equal amount
are added to the other side. These shims are also used
to preload the bearings which are pressed onto the
differential cage. Two bearing caps are used to hold
the differential into the rear axle housing. The
differential is
used to allow the wheels to turn at
different rates
of speed while the rear axle continues to
transmit the driving force. This prevents tire scuffing
when going around corners and prevents premature
wear on internal axle parts.
The rear
axle is sealed with a pinion seal, a seal at each
axle shaft end, and by a liquid gasket between the
differential carrier and the axle housing.
II

REAR AXLE 48-3
DIAGNOSIS OF REAR AXLE NOISE
Many noises that seem to come from the rear axle
actually
originate from other sources such as tires,
road surface, wheel bearings, engine, transmission,
muffler,
or body drumming. Investigate to find the
source
ofthe noise before disassembling the rear axle.
Rear axles,
like any other mechanical device, are not
absolutely quiet but should be considered quiet unless
some abnormal noise is present.
To make a systematic check
for axle noise, observe the
following:
1. Select a level asphalt road to reduce tire noise and
body drumming.
2. Check rear axle lubricant level to assure correct
level, and then drive the vehicle far enough to
thoroughly warm up the rear axle lubricant.
3. Note the speed at which noise occurs. Stop the
vehicle and put the transmission in neutral. Run
the engine speed
slowly up and down to
determine if the noise is caused by exhaust,
muffler noise, or other engine conditions.
4. Tire noise changes with different road surfaces;
axle noises do not. Temporarily inflate all tires to
344
kPa (50 psi) (for test purposes only). This will
change noise caused by tires but will not affect
noise caused by the rear
axle.
Rear axle nose usually stops when coasting at
speeds under
48 km/h (30 mph); however, tire
noise continues
with a lower tone. Rear axle noise
usually changes when comparing pull and coast,
but tire noise stays about the same.
Distinguish between tire noise and rear
axle noise
by noting
if the noise changes with various
speeds
or sudden acceleration and deceleration.
Exhaust and
axle noise vary under these
conditions,
while tire noise remains constant and
is more pronounced at speeds
of 32 to 48 km/h
(20 to 30 mph). Further check for tire noise by
driving the vehicle
over smooth pavements or dirt
roads (not gravel) with the tires at normal
pressure.
If the noise is caused by tires, it will
change noticeably with changes in road surface.
5. Loose or rough front wheel bearings will cause
noise
which may be confused with rear axle
noise; however, front wheel bearing noise does
not change when comparing drive and coast.
Light application
of the brake while holding
vehicle speed steady
will often cause wheel
bearing noise to diminish. Front wheel bearings
may be checked for noise by jacking up the
wheels and spinning them
or by shaking the
wheels
to determine if bearings are loose.
6. Rear suspension rubber bushings and spring
insulators dampen
out rear axle noise when
correctly installed. Check to see that there is no
link or rod loosened or metal-to-metal contact.
7. Make sure that there is no metal-to-metal contact
between the
floor and the frame.
After the noise has been determined to be in the axle,
the type of axle noise should be determined, in order to
make any necessary repairs.
GEAR NOISE
Gear noise (whine) is audible from 32 to 89 km/h (20 to
55 mph) under four driving conditions.
1. In drive under acceleration or heavy pull.
2. Driving under load or under constant speed.
3. When using enough throttle to keep the vehicle
from driving the engine while the vehicle slows
down gradually (engine still pulls slightly).
4. When coasting with the vehicle in gear and the
throttle closed. The gear noise is
usually more
noticeable between 48 and 64
km/h (30 and 40
mph) and 80 and 89 km/h (50 and 55 mph).
BEARING NOISE
Bad bearings generally produce a rough growl or
grating sound, rather than the whine typical of gear
noise. Bearing noise frequently
"wow-wows" at
bearing rpm, indicating a bad pinion
or rear axle side
bearing. This noise can
be confused with rear wheel
bearing noise.
REAR WHEEL BEARING NOISE
Rear wheel bearing noise continues to be heard while
coasting at low speed with transmission in the neutral.
Noise may diminish by gentle braking. Jack up the rear
wheels, spin them by hand and
listen for noise at the
hubs. Replace any faulty
wheel bearings.
KNOCK AT LOW SPEEDS
Low speed knock can be caused by worn universal
joints or a side gear hub counter bore in the cage that is
worn oversize. Inspect and replace universal joints or
cage and side gears as required.
BACKLASH CLUNK
Excessive clunk on acceleration and deceleration can
be caused by a worn rear axle pinion shaft, a worn
cage, excessive clearance between the axle and the
side gear splines, excessive clearance between the
side gear hub and the counterbore in the cage,
worn
pinion and side gear teeth, worn thrust washers, or
excessive drive pinion and ring gear backlash.
Remove
worn parts and replace as required. Select
close-fitting parts when possible. Adjust pinion and
ring gear backlash.

48-4 REAR AXLE
ON-VEHICLE SERVICE
AXLE HOUSING
; ~~:r~4 ,
L ___________ j
12 14
3a
1
• 3
~
~·
13 5
Removal steps
1. Parking brake cable 7. Nut 17.
Differential assembly
2. Breather hose 8.
Bolt and nut 9. Bolt and nut Installation steps
3. Anti lock brake system (ABS)
connector and bracket 10. Coil spring and insulator To install, follow the removal
steps in the reverse order.
3a. Rear wheel antilock (RWAL)
speed sensor, bracket and
harness connector 11.
Axle housing assembly
12. Brake caliper
13. Brake disc
4. Flare
nut 14. ABS speed sensor and harness
5. Nut 15.
Brake pipe
6. Nut 16.
Axle shaft assembly
Fig. 4B-2
1••1 REMOVAL
Preparations:
• Raise the vehicle and support it with suitable
safety stands.
The
hoist must remain under the rear axle
housing.
• Take out brake fluid. Refer to Section 5A2 "DISC
BRAKES".
•
Remove rear wheels and tires. Refer to Section
3E "WHEELS AND TIRES".
•
Remove propeller shaft. Refer to Section 4A
"PROPELLER SHAFT".
•
Drain the rear axle oil into a proper container.
1. Parking brake cable
•
Release the connection between the cable
fixing clip equalizer. Refer to Section 5C
"PARKING BRAKES".
2. Breather hose
• Move the clip aside and pull out the breather
hose.
3. ABS connector and bracket
• Disconnect the connectors and remove the
brackets attached to the frame and center link
(Fig. 4B-3).
3a. RWAL speed sensor,
bracket and harness
connector
• Disconnect the connector and remove the
brackets attached to the frame and center link.
4. Brake tube flare nut
• Loosen the flare nut, remove the clip and take
out the brake tube.
•

5.
6.
7.
8.
........,
9.
10.
11.
12.
B 0
g
Fig. 48-3
Nut
• Remove the shock absorber fixing nut from the
axle housing.
Nut
• Remove the stabilizer linkage mounting nut
from the axle housing.
Nut
• Remove the lateral rod fixing nut from the axle
housing.
Bolt and nut
• Remove the center link mounting bolt and nut
from the axle housing .
Bolt and nut
• Remove the trailing link fixing bolt and nut
from the axle housing.
Coil spring and insulator
• Jack down and remove the coil spring and
insulator.
Axle housing assembly
• Axle
housing assembly can be separated from
the vehicle on completion of steps 1 -10.
Brake caliper
•
Remove the brake caliper fixing bolt, loosen
the
flare nut, release the clip and take out the
brake caliper
together with the flexible hose
(Fig. 48-
4).
REAR AXLE 48 - 5
Bolt Clip
Fig. 48-4
13. Brake disc
14.
Antilock brake system speed sensor and
harness
• Remove the speed sensor fixing bolt and the
clip and bracket on the axle housing.
15. Brake
pipe
• Remove the clip and fixing bolt on the axle
housing and take out the brake pipe.
16.
Axle shaft assembly
• Remove the bearing holder fixing nut and
take
out the axle shaft assembly. Refer to
"AXLE SHAFT" in this section.
• Be sure not to damage the oil seal by the
spline of the shaft.
17. Differential
assembly
• Refer to "DIFFERENTIAL ASSEMBLY" in this
section.
OIL SEAL REPLACEMENT
• Remove the oil seal, carefully not to damage
the housing, and mount new oil seal using
special tools (Fig. 48-5).
1®.1 Oil seal installer: J-39210
Fig. 48-5