1998 ISUZU TROOPER wheel

5C – 58 POWER ASSISTED BRAKE SYSTEM
2. Lock Bolt
Lock Bolt Torque N·m (kg·m / lb·ft)
44 (4.5 / 32)
1. Wheel and Tire Assembly
1) Refer to Wheels and Tires in Suspension section.
2) Pump the brake pedal several times to make sure
that the pedal is firm. Check the brake fluid level
in the reservoir after pumping the brakes.

POWER ASSISTED BRAKE SYSTEM 5C – 59
CALIPER REPLACEMENT
7
1
4
6
8
8
5
2
3
Removal Steps
1. Wheel and tire assembly
2. Brake flexible hose
3. Lock bolt
4. Guide bolt
5. Caliper assembly
6. Support bracket
7. Pad assembly with shim
8. Clip
Installation Steps
To install, follow the removal steps in the
reverse order.
REMOVAL
•Raise the vehicle and support with suitable safety
stands.
1. Wheel and Tire Assembly
•Refer to Wheels and Tires in Suspension section.
2. Brake Flexible Hose
1) Remove the bolt and gaskets, then disconnect the
flexible hose from the caliper.
2) After disconnecting the flexible hose, cap or tape
the openings to prevent entry of foreign material.
3) Since the brake fluid flows out from the
connecting coupler, place a drain pan under the
vehicle.

POWER ASSISTED BRAKE SYSTEM 5C – 61
4. Guide Bolt
3. Lock Bolt
Lock Bolt Torque N·m (kg·m / lb·ft)
44 (4.5 / 32)
3
4
2. Brake Flexible Hose
1) Always use new gaskets.
2) Be sure to put the hooked edge of the flexible
hose end into the anti-rotation cavity.
Brake Flexible Hose Torque N·m (kg·m / lb·ft)
35 (3.5 / 26)
Hooked edge
Gasket
1. Wheel and Tire Assembly
1) Refer to Wheels and Tires in Suspension section.
2) Bleed brakes.

5D Ð 6 PARKING BRAKES
GENERAL DESCRIPTION
Pulling up the parking brake lever by hand will set the parking brake. Once pulled up, the lever is held by
means of a ratchet type lock until it is released. The position of the lever is transmitted through
cable/lever systems to the rear wheels. These parts are designed to obtain sufficient braking force when
parking on slopes. When the parking brake is set, or when the ignition SW is in the ÒONÓ position, the
brake warning light illuminates. The rear wheel parking brake is a duo-servo brake (mechanical inside
expansion type) built-in to rear disc brake. Parking brake adjustment is made through the adjusting hole
(bored through back plate). Parking brake lever stroke should be adjusted to 6 or 7 notches.
OPERATION
When pulled in the direction ÒAÓ, the parking lever presses the secondary shoe against the brake drum
using the lever/shoe joint ÒBÓ as a fulcrum and pushes the strut in the direction ÒCÓ. The strut, in turn,
presses the primary shoe against the brake drum. Counter force ÒDÓ to the primary shoe is transmitted
again to the secondary shoe through the fulcrum ÒBÓ. The secondary shoe contacts the drum, thereby
producing braking effect. Clearance which may result from worn parking brake shoe lining can be
adjusted by turning the adjusting screw
Parking lever
Strut
Primary shoe
Parking cable guide
Adjusting screw notch
Secondary shoe
DC
A
Fulcrum B
Parking brake cable guide
Adjusting hole plug
Adjusting screw notch
Shoe expanding
direction

PARKING BRAKES 5D Ð 9
PARKING BRAKE CABLE
5
7
4
2
3
1
6 7
1215
1314
AB
108
9
10
11 169 8
AB
Removal Steps
1. Rear wheels
2. Caliper assembly
3. Rotor (Drum)
4. Holding spring
5. Return spring; upper
6. Return spring; lower
7. Shoe assembly
8. Cable fixing bolt
9. Clip
10. Clip
11. Clip
12. Adjust nut
13. Equalizer
14. Bolt
15. Retaining plate
16. Parking brake cable
Installation Steps
To install, follow the removal steps in the
reverse order.
331RW009

5D Ð 10 PARKING BRAKES
INSTALLATION
To install, follow the removal steps in the reverse
order, noting the following points.
15. Parking Brake Cable
·Apply grease (BESCO L-2 or equivalent) to the
connecting portion of the rear cable and equalizer.
12. Adjust Nut
·Tighten the adjust nut to the specified torque.
Adjust Nut Torque Nám (kgácm / lbáin)
6 (60 / 52)
·To adjust the parking brake, refer to Parking Brake
Adjustment in this section.
11. Clip
·Tighten the fixing bolt to the specified torque.
Fixing Bolt Torque Nám (kgácm / lbáin)
15 (150 / 130)
10. Clip
·Tighten the fixing bolt to the specified torque.
Fixing Bolt Torque Nám (kgácm / lbáin)
6.5 (65 / 58)
REMOVAL
1. Rear Wheels
2. Caliper Assembly
·Remove 2 bolts to remove the caliper assembly
from the support bracket. (Refer to Rear Disc
Brakes in Power Assisted Brake System section.)
Temporarily hang the caliper with wire to avoid
stretching the brake hose.
3. Rotor (Drum)
4. Holding Spring
5. Return Spring; Upper
6. Return Spring; Lower
7. Shoe Assembly
·Remove the brake shoe assembly. Then remove
the parking brake cable from the parking brake
lever.
8. Cable Fixing Bolt
9. Clip
10. Clip
11. Clip
12. Adjust Nut
13. Equalizer
14. Bolt
15. Retaining Plate
16. Parking Brake Cable
Parking brake lever

6A±3
ENGINE MECHANICAL
General Description
Engine Cleanliness And Care
An automobile engine is a combination of many
machined, honed, polished and lapped surfaces with
tolerances that are measured in the thousandths of a
millimeter (ten thousandths of an inch). Accordingly,
when any internal engine parts are serviced, care and
cleanliness are important. Throughout this section, it
should be understood that proper cleaning and protection
of machined surfaces and friction areas is part of the
repair procedure. This is considered standard shop
practice even if not specifically stated.

A liberal coating of engine oil should be applied to all
friction areas during assembly to protect and lubricate
the surfaces on initial operation.

Whenever valve train components, pistons, piston
rings, connecting rods, rod bearings, and crankshaft
journal bearings are removed for service, they should
be retained in order.

At the time of installation, they should be installed in
the same locations and with the same mating
surfaces as when removed.

Battery cables should be disconnected before any
major work is performed on the engine. Failure to
disconnect cables may result in damage to wire
harness or other electrical parts.

The six cylinders of this engine are identified by
numbers; Right side cylinders 1, 3 and 5, Left side
cylinders 2, 4 and 6, as counted from crankshaft
pulley side to flywheel side.
General Information on Engine Service
The following information on engine service should be
noted carefully, as it is important in preventing damage
and contributing to reliable engine performance:

When raising or supporting the engine for any reason,
do not use a jack under the oil pan. Due to the small
clearance between the oil pan and the oil pump
strainer, jacking against the oil pan may cause
damage to the oil pick±up unit.

The 12±volt electrical system is capable of damaging
circuits. When performing any work where electrical
terminals could possibly be grounded, the ground
cable of the battery should be disconnected at the
battery.

Any time the intake air duct or air cleaner is removed,
the intake opening should be covered. This will
protect against accidental entrance of foreign
material into the cylinder which could cause extensive
damage when the engine is started.
Cylinder Block
The cylinder block is made of aluminum die±cast casting
for 75
V±type six cylinders. It has a rear plate integrated
structure and employs a deep skint. The cylinder liner is
cast and the liner inner diameter and crankshaft journal
diameter are classified into grades. The crankshaft is
supported by four bearings of which width of No.3 bearing
on the body side is different in order to support the thrust
bearing. The bearing cap is made of nodular cast iron and
each bearing cap uses four bolts and two side bolts.
Cylinder Head
The cylinder head, made of aluminum alloy casting
employs a pent±roof type combustion chamber with a
spark plug in the center. The intake and exhaust valves
are placed in V±type design. The ports are cross±flow
type.
Valve Train
Intake and exhaust camshaft on the both side of banks
are driven through an camshaft drive gear by timing belt.
The valves are operated by the camshaft and the valve
clearance is adjusted to select suitable thickness shim.
Intake Manifold
The intake manifold system is composed of the aluminum
cast common chamber and intake manifold attached with
six fuel injectors.
Exhaust Manifold
The exhaust manifold is made of nodular cast iron.
Pistons and Connecting Rods
Aluminum pistons are used after selecting the grade that
meets the cylinder bore diameter. Each piston has two
compression rings and one oil ring. The piston pin is made
of chromium steel is offset 1mm toward the thrust side,
and the thrust pressure of piston to the cylinder wall varies
gradually as the piston travels. The connecting rods are
made of forged steel. The connecting rod bearings are
graded for correct seze selection.
Crankshaft and Bearings
The crankshaft is made of Ductile cast±iron. Pins and
journals are graded for correct size selection for their
bearing.
Engine Lubrication
The oil discharged by a trochoid±type oil pump driven by
the crankshaft is fed through full±flow oil filter and to the oil
gallery provided under the crankshaft bearing cap. The oil
is then led to the crankshaft journals and cylinder head.
The crank pins are lubricated with oil from crankshaft
journals through oil holes. Also, an oil jet is fed to each
cylinder from crankshaft juornals on the connecting rod
for piston cleaning. The oil pan flange is dealed with liquid
packing only; do not deform or damage the flange surface
during removal or installation.

6A±42
ENGINE MECHANICAL
Crankshaft and Main Bearings
Removal
F06RW010
Legend
(1) Engine Assembly
(2) Crankshaft Pulley
(3) Timing Belt Cover
(4) Timing Belt
(5) Crankcase with Oil Pan
(6) Oil Pipe
(7) Oil Strainer(8) Oil Pump Assembly
(9) Cylinder Body Side Bolt
(10) Oil Gallery
(11) Flywheel
(12) Rear Oil Seal Retainer
(13) Connecting Rod Cap
(14) Crankshaft Main Bearing Cap
(15) Crankshaft and Main Bearing
1. Remove engine assembly.

Refer to removal procedure for Engine Assembly in
this manual.
2. Remove timing belt.

Refer to removal procedure for Timing Belt in this
manual.3. Remove oil pan and crankcase.

Refer to removal procedure for Oil Pan and
Crankcase in this manual.
4. Remove oil pipe with O-ring.
5. Remove oil strainer assembly with O-ring.