Isuzu Trooper (2000 year). Service manual — part 62
3C 13
FRONT SUSPENSION
2. Apply multipurpose type grease to the thrust washer,
and install washer with chamfered side facing
knuckle.
3. Use a new oil seal, and apply multipurpose type
grease to the area surrounded by the lip (approx. 2 g).
Then use installer J–41468 and J–8092 to install oil
seal. After fitting the oil seal to the installer, drive it to
the knuckle using a hammer or bench press until the
tool front face contacts with the thrust washer.
901RW046
4. Install knuckle assembly.
5. Install upper ball joint and tighten the nut to the
specified torque, with just enough additional torque to
align cotter pin holes. Install new cotter pin.
Torque: 98 N·m (72 lb ft)
6. Install lower ball joint and tighten the nut to the
specified torque, with just enough additional torque to
align cotter pin holes. Install new cotter pin.
Torque: 147 N·m (108 lb ft)
7. Install back plate.
8. Install wheel speed sensor.
9. Install torsion bar, refer to Torsion Bar Replacement in
this section.
NOTE: Adjust the trim height. Refer to Front End
Alignment Inspection and Adjustment in Steering
section.
3C 14
FRONT SUSPENSION
Upper Control Arm
Upper Control Arm and Associated Parts
450RS007
Legend
(1) Bolt and Plate
(2) Camber Shims
(3) Caster Shims
(4) Nut Assembly
(5) Upper Control Arm Assembly
(6) Fulcrum Pin
(7) Bushing
(8) Plate
(9) Nut
(10) Speed Sensor Cable
(11) Nut and Cotter Pin
(12) Upper Ball Joint
Removal
1. Raise the vehicle and support the frame with suitable
safety stands.
2. Remove wheel and tire assembly. Refer to Wheel
Replacement in this section.
3. Remove the brake caliper and disconnect brake pipe.
Refer to Disc Brakes in Brake section.
4. Support lower control arm with a jack.
5. Remove speed sensor cable.
6. Remove nut and cotter pin then use remover
J–36831.
3C 15
FRONT SUSPENSION
CAUTION: Be careful not to break the ball joint boot.
901RW043
7. Remove upper ball joint.
8. Remove bolt and plate.
9. Remove nut assembly.
10. Remove camber shims and note the positions and
number of shims.
11. Remove caster shims and note the positions and
number of shims.
12. Remove upper control arm assembly.
13. Remove nut.
14. Remove plate.
15. Remove bushing by using remover J–29755.
901RW047
901RW048
16. Remove fulcrum pin.
Inspection and Repair
Make necessary parts replacement if wear, damage,
corrosion or any other abnormal conditions are found
through inspection.
Check the following parts:
D
Upper control arm
D
Bushing
D
Fulcrum pin
3C 16
FRONT SUSPENSION
Installation
1. Install fulcrum pin.
2. Install bushing by using installer J–29755 and
J–39376.
901RW049
901RW050
3. Install plate.
4. Install nut and tighten fulcrum pin nut finger–tight.
NOTE: Torque fulcrum pin nut after adjusting buffer
clearance.
Buffer clearance: 20 mm (0.79 in)
Torque: 108 N·m (80 lb ft)
450RS012
5. Install upper control arm assembly with the fulcrum
pin projections turned inward.
450RS013
Legend
(1) Projection
(2) Outward
6. Install the caster shims(2) between the chassis frame
and fulcrum pin.
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