shaft ISUZU TROOPER 1998 Service Repair Manual

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THIS MALUAL INCLUDES THE FOLLOWING SECTIONS:
SECTION No. CONTRNTS
4A1 DIFFERENTIAL (FRONT)
4A2A DIFFERENTIAL (Rear 220mm)
4A2B DIFFERENTIAL (REAR 244mm)
4B1 DRIVELINE CONTROL SYSTEM (SHIFT ON
THE FLY)
4B2 DRIVELINE CONTROL SYSTEM (TOD)
4C DRIVE SHAFT SYSTEM
4D1 TRANSFER CASE (STANDARD TYPE)
4D2 TRANSFER CASE (TOD)

For illustrations where there are few items to
be performed:
The sequence of removal
(disassembly) and the parts names
will be given.
The symbol mark attached to the title
indicates the action to be taken in the
operations of each title.
Example for this case;
1st step Ð Reassemble pinion shaft
The numbers given to the installation
(assembly) procedure are the same
as those given in the removal
(disassembly) procedure in the
illustration. Therefore, start with the
larger number during reassembly.
The titles of operations done in the
illustration are given in bold letters.
They are described in the order of
the procedure of the operations.
Special tools are identified with tool
name and/or tool number.
The drawing illustrates how the tool
is used.
Service data and specifications are
listed in table.
Important note.
The action symbol indicates the step
of service to be followed.
Refer to the following paragraph for
the meaning of each symbol.
information such as the notes in each operation,
and places where special tools are to be used
and their usage, and the specified service data.
0AÐ4 GENERAL INFORMATION
6. After the illustration, the details of each
operation are shown in the order the operations
are carried out in the illustration. Refer to the
explanations when checking important

ABBREVIATIONS CHARTS
LIST OF AUTOMOTIVE ABBREVIATIONS WHICH MAY BE USED IN THIS MANUAL
A Ð Ampere(s)
ABS Ð Antilock Brake System
A/C Ð Air Conditioning
ACCEL Ð Accelerator
ACC Ð Accessary
Adj Ð Adjust
A/F Ð Air Fuel Ratio
AIR Ð Air Injection Reaction System
ALDL Ð Assembly Line Diagnostic Link
Alt Ð Altitude
AMP Ð Ampere(s)
ANT Ð Antenna
APS Ð Absolute Pressure Sensor
ASM Ð Assembly
A/T Ð Automatic Transmission/Transaxle
ATDC Ð After Top Dead Center
Auth Ð Authority
Auto Ð Automatic
BARO Ð Barometic
Bat Ð Battery
Bat+ Ð Battery Positive Terminal
Bbl Ð Barrel
BCM Ð Body Control Module
BHP Ð Brake Horsepower
BP Ð Back Pressure
BTDC Ð Before Top Dead Center
¡C ÐDegrees Celsius
Cat. Conv. Ð Catalytic Converter
cc Ð Cubic Centimeter
CCC Ð Computer Command Control
CCOT Ð Cycling Clutch Orifice Tube
CCP Ð Controlled Canister Purge
CID Ð Cubic Inch Displacement
CL Ð Closed Loop
CLCC Ð Closed Loop Carburetor Control
CO Ð Carbon Monoxide
Coax Ð Coaxial
Conn Ð Connector
Conv Ð Converter
CP Ð Canister Purge
CPS Ð Central Power Supply
Crank Ð Crankshaft
CTS Ð Coolant Temperature Sensor
Cu.In. Ð Cubic Inch
CV Ð Constant Velocity
Cyl Ð Cylinder(s)
C
3I Ð Computer Controlled Coil Ignition
DBM Ð Dual Bed Monolith
Diff Ð Differential
DIS Ð Direct Ignition System
Dist ÐDistributor
DOHC Ð Double Overhead Camshaft
DVM Ð Digital Voltmeter (10 meg.)
DVOM Ð Digital Volt Ohmmeter
DVDV Ð Differential Vacuum Delay Valve
EAC ÐElectric Air Control
EAS Ð Electric Air Switching
EBCM Ð Electronic Brake Control Module
ECC Ð Electronic Climate Control
ECM Ð Electronic Control Module
ECU Ð Electronic Control Unit
Ð Engine Calibration Unit (PROM)
EECS Ð Evaporative Emission Control System
EFE Ð Early Fuel Evaporation
EFI Ð Electronic Fuel Injection
EGR Ð Exhaust Gas Recirculation
EGR/TVS Ð Exhaust Gas Recirculation/Thermostatic
Vacuum Switch
ELC Ð Electronic Level Control
ESC Ð Electronic Spark Control
EST Ð Electronic Spark Control
ETR Ð Electronically Tuned Receiver
EVRV Ð Electronic Vacuum Regulator Valve (EGR)
Exh Ð Exhaust
¡F Ð Degrees Fahrenheit
FF Ð Front Drive Front Engine
FL Ð Fusible Link
FLW Ð Fusible Link Wire
FRT ÐFront
FWD Ð Front Wheel Drive
4WD Ð Four Wheel Drive
4x4 Ð Four Wheel Drive
4 A/T Ð Four Speed Automatic Transmission/Transaxle
Gal Ð Gallon
Gen Ð Generator
Gov Ð Governor
g Ð Gram
Harn Ð Harness
HC Ð Hydrocarbons
HD ÐHeavy Duty
HEI Ð High Energy Ignition
Hg Ð Mercury
HiAlt Ð High Altitude
HVAC Ð Heater-Vent-Air Conditioning
IAC Ð Idle Air Control
IC Ð Integrated Circuit
ID Ð Identification
Ð Inside Diameter
IDI Ð Integrated Direct Ignition
IGN Ð Ignition
ILC Ð Idle Load Compensator
INJ ÐInjection
IP Ð Instrument Panel
IPC Ð Instrument Panel Cluster
INT Ð Intake
J/B Ð Junction Block
km Ð Kilometers
km/h Ð Kilometer per Hour
kPa Ð KiloPascals
KV Ð Kilovolts (thousands of volts)
KW Ð Kilowatts
0AÐ12 GENERAL INFORMATION

SAE Ð Society of Automotive Engineers
Sec Ð Secondary
SFI Ð Sequential-port Fuel Injection
SI Ð System International
SIR Ð Supplemental Inflatable Restraint System
SOHC Ð Single Overhead Camshaft
Sol Ð Solenoid
SPEC Ð Specification
Speedo Ð Speedometer
SRS Ð Supplemental Restraint System
ST Ð Start
Sw Ð Switch
SWB Ð Short Wheel Base
SYN Ð Synchronize
TAC Ð Thermostatic Air Cleaner
Tach Ð Tachometer
TBI Ð Throttle Body Injection
TCC Ð Transmission/Transaxle Converter Clutch
TCM Ð Transmission/Transaxle Control Module
TDC Ð Top Dead Center
Term Ð Terminal
TEMP Ð Temperature
TPS Ð Throttle Position Sensor
TRANS Ð Transmission/Transaxle
TURBO Ð Turbocharger
TV Ð Throttle Valve
TVRS Ð Television & Radio Suppression
TVS Ð Thermal Vacuum Switch
3 A/T Ð Three Speed Automatic Transmission/
Transaxle
2WD Ð Two Wheel Drive
4x2 Ð Two wheel Drive
U-joint Ð Universal Joint
V Ð Volt(s)
VAC Ð Vacuum
VIN Ð Vehicle Identification Number
VRRRE Ð Vehicle Refrigerant Recovery and Recycling
Equipment
V-ref Ð ECM Reference Voltage
VRV Ð Vacuum Reducer Valve
VSS Ð Vehicle Speed Sensor
VSV Ð Vacuum Switching Valve
V-6 Ð Six Cylinder ÒVÓ Engine
V-8 Ð Eight Cylinder ÒVÓ Engine
W Ð Watt(s)
w/ Ð With
w/b Ð Wheel Base
w/o Ð Without
WOT Ð Wide Open ThrottleL Ð Liter
lbáft Ð Foot Pounds
lbáin Ð Inch Pounds
LF Ð Left Front
LH Ð Left Hand
LR Ð Left Rear
LS Ð Left Side
LWB Ð Long Wheel Base
L-4 Ð In-line Four Cylinder Engine
MAF Ð Mass Air Flow
MAN Ð Manual
MAP Ð Manifold Absolute Pressure
MAT Ð Manifold Air Temperature
MEM-CAL Ð Memory and Calibration Unit
Max Ð Maximum
M/C Ð Mixture Control
Min Ð Minimum
mm Ð Millimeter
MPFI Ð Multi-Port Fuel Injection
MPG Ð Miles per Gallon
MPH Ð Miles per Hour
M/T Ð Manual Transmission/Transaxle
MV Ð Millivolt
NA Ð Natural Aspirated
NC Ð Normally Closed
Nám Ð Newton Meters
NO Ð Normally Open
NOx Ð Nitrogen, Oxides of
OD Ð Outside Diameter
O/D Ð Over Drive
OHC Ð Overhead Camshaft
OL Ð Open Loop
O
2Ð Oxygen
PAIR Ð Pulse Air Injection Reactor System
P/B Ð Power Brakes
PCV Ð Positive Crankcase Ventilation
PFI Ð Port Fuel Injection
PRESS Ð Pressure
PROM Ð Programmable Read Only Memory
P/N Ð Park/Neutral
P/S Ð Power Steering
PSI Ð Pounds per Square Inch
Pt. Ð Pint
Pri Ð Primary
PWM Ð Pulse Width Modulated
Qt Ð Quart
REF Ð Reference
RF Ð Right Front
RFI Ð Radio Frequency Interference
RH Ð Right Hand
RPM Ð Revolutions per Minute
RPO Ð Regular Production Option
RR Ð Right Rear
RS Ð Right Side
RTV Ð Room Temperature Vulcanizing
RVB Ð Rear Vacuum Brake
RVR Ð Response Vacuum Reducer
RWAL Ð Rear Wheel Antilock Brake
RWD - Rear Wheel Drive
GENERAL INFORMATION 0AÐ13

0BÐ2 MAINTENANCE AND LUBRICATION
MAINTENANCE SCHEDULE
GASOLINE ENGINE MODELI: Inspect and correct or replace as necessary A: Adjust
R: Replace or change T: Tighten to specified torque L: Lubricate
SERVICE INTERVAL: x 1,000 km
(Use odometer reading x 1,000 miles
or months whichever comes first) or months5
3
610
6
1215
9
1820
12
2425
15
3030
18
3635
21
4240
24
4845
27
5450
30
6055
33
6660
36
7265
39
7870
42
8475
45
9080
48
9685
51
10290
54
10895
57
114100
60
120
GASOLINE ENGINE
* Engine oil
* Engine oil filter
Oil leakage and contamination
* Timing belt
Spark plugs (For leaded fuel use)
Spark plugs (For unleaded fuel use)
Exhaust system
Radiator coolant concentration
Cooling system for water leakage
All hoses and pipes in engine compartment
for clog or damage
Fuel filter
Fuel leakage
Fuel tank
* Air cleaner element
Pre air cleaner
Engine drive belt
Valve clearance
O
2 Sensor (For leaded fuel use)
O
2 Sensor (For unleaded fuel use)-
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(Replace every 165,000 km or 100,000 miles)
(Replace every 165,000 km or 100,000 miles)
(Check and adjust if necessary every 100,000 km or 60,000 miles)
(Replace every 150,000 km or 90,000 miles)
CLUTCH
Clutch fluid
Clutch pedal travel and free play
TRANSMISSION OR TRANSMISSION WITH
TRANSFER CASE
* Manual transmission with transfer case oil
* Automatic transmission fluid leakage
*
(1)Automatic transmission fluid
* Transfer case oil
PROPELLER SHAFT
Loose connections
*
Universal joints and splines for wear
Universal joints and sliding sleeve (front and rear)
FRONT AND REAR AXLE
* Differential gear oil (Front and rear)
Shift on the fly system gear oil
Front axle shaft rubber boot for damage
Axle case for distortion or damage
Axle shafts for distortion or damage-
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ATATAT
STEERING
* Power steering fluid
Oil leakage
* Steering system for looseness or damage
Power steering hose
Steering wheel play
Steering function
Right and left turning radius
Wheel alignment
Joint ball for oil leakage or damage
Joint ball rubber boot for damage
SERVICE BRAKES
Brake fluid
Brake system for fluid leakage
Brake function
* Disc brake pads and discs wear
Brake pedal travel and free play
Pipes and hoses for loose connections or damage
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(1): Adjust or change automatic transmission fluid.
*Marks: Under severe driving conditions, additional maintenance is required.
Refer to “Maintenance schedule under severe driving conditions”.

0BÐ4 MAINTENANCE AND LUBRICATION
DIESEL ENGINE MODELI: Inspect and correct or replace as necessary A: Adjust
R: Replace or change T: Tighten to specified torque L: Lubricate
SERVICE INTERVAL: x 1,000 km
(Use odometer reading x 1,000 miles
or months whichever comes first) or months5
3
610
6
1215
9
1820
12
2425
15
3030
18
3635
21
4240
24
4845
27
5450
30
6055
33
6660
36
7265
39
7870
42
8475
45
9080
48
9685
51
10290
54
10895
57
114100
60
120
DIESEL ENGINE
* Engine oil
* Engine oil filter
Oil leakage and contamination
Idling speed and acceleration
Fan belt tension and damage
Timing belt
Exhaust system
All hoses and pipes in engine compartment
for clog or damage
Valve clearance
* Air cleaner element
Fuel filter
Radiator coolant concentration
Cooling system for water leakage-
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NOTE: In the 4JXI-TC diesel engine, there is provided sub (2nd) oil filter for fuel injection at the upper part of crank case on the left
side of the engine. This oil filter maintenance-free and does not need a periodic replacement. See reverse side the (back)
cover for installation location of the sub (2nd) oil filter.(Replace every 200,000 km or 125,000 miles)
*Marks: Under severe driving conditions, additional maintenance is required.
Refer to “Maintenance schedule under severe driving conditions”. CLUTCH
Clutch fluid
Clutch pedal travel and free play
TRANSMISSION OR TRANSMISSION WITH
TRANSFER CASE
* Manual transmission with transfer case oil
* Automatic transmission fluid
* Transfer case oil
PROPELLER SHAFT
Loose connections
* Universal joints and splines for wear
Universal joints and sliding sleeve (front and rear)FRONT AND REAR AXLE
* Differential gear oil (Front and rear)
Shift on the fly system gear oil
Front axle shaft rubber boot for damage
Axle case for distortion or damage
Axle shafts for distortion or damage-
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ATAT
STEERING
* Power steering fluid
Oil leakage
* Steering system for looseness or damage
Power steering hose
Steering wheel play
Steering function
Right and left turning radius
Wheel alignment
Joint ball for oil leakage or damage
Joint ball rubber boot for damage
SERVICE BRAKES
Brake fluid
Brake system for fluid leakage
Brake function
* Disc brake pads and discs wear
Brake pedal travel and free play
Pipes and hoses for loose connections or damage
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0BÐ8 MAINTENANCE AND LUBRICATION
FLUID TYPE
Clutch and brake fluid reservoir Besco brake fluid (For light duty)
Hydraulic brake fluid SAE J1703
FMVSS 116 DOT.3 grade
LUBRICATION MAKE BRAND / TYPEGRADE
API ACEA
ISUZU GENUINE BESCO ATF II, ATF III
EXXON / ESSO ESSO ATF D (DEXRONÒ
II-D)
Automatic transmission MOBIL MOBIL ATF (DEXRONÒ
III)
Power steering CALTEX ATF HD (DEXRONÒ
II)
SHELL SHELL DONAX TA (DEXRONÒ
II-D)
ELF ELFMATIC G3 (DEXRONÒ
III)
TOTAL TOTAL FLUID IID (DEXRONÒ
II-D)
ISUZU GENUINE
BESCO L-2 GREASE (No.2), L-3 GREASE (No.3)Propeller shaft sliding EXXON / ESSO RONEX MP (No.2)
yoke, Universal joint MOBIL MOBILGREASE HP 222 (No.2)
Grease fittingCALTEX / TEXACOSTARPLEX-2 (No.2)
(General purpose grease)SHELL SHELL RETINAX A (No.2)
TOTAL MULTIS EP2, EP3 (No.2, No.3)
Propeller shaft slidingISUZU GENUINE ONE LUBER MO GREASE
yoke EXXON / ESSO BEACON Q2 (No.2)
Universal joint EXXON / ESSO MULTIPURPOSE GREASE (Moly) (No.2)
General purpose greaseCALTEX MOLYTEX GREASE EP2 (No.2)(in Molybdenum)TOTAL TOTAL MULTIS MS2 (No.2)
ISUZU GENUINE BESCO LLC SUPER TYPE E
TEXACO / CALTEX HAVOLINE EXTENDED LIFE ANTIFREEZE
Engine cooling system COOLANT
HAVOLINE XLC
EXTENDED LIFE COOLANT 6280
NOTE:
When the recommended lubricants are specified in the workshop manual, follow them.

SERVICE INFORMATION 00 Ð 23
AIR CONDITIONING CYCLE TROUBLESHOOTING
No cooling or insuffi-
cient cooling
Insufficient velocity
of cooling air1. Magnetic clutch does not run
2. Compressor is not rotating properly
·Drive belt loosened or broken
·Magnetic clutch face is not
clean and slips
·Incorrect clearance between
magnetic drive plate and pulley
·Compressor oil leaks from shaft
seal or shell
·Compressor seized
3. Insufficient or excessive charge of
refrigerant
4. Leaks in the refrigerant system
5. Condenser clogged or insufficient
radiation
6. Temperature control link unit of the
heater unit defective
7. Unsteady operation due to foreign
substance in expansion valve
8. Poor operation of electronic thermo-
stat
1. Evaporator clogged or frosted
2. Air leaking from cooling unit or air
duct
3. Blower motor does not rotate prop-
erly·Refer to ÒMAGNETIC CLUTCHÓ
troubleshooting
·Adjust the drive belt to the specified
tension or replace the drive belt
·Clean the magnetic clutch face or
replace
·Adjust the clearance (Refer to
Section 1D ÒCOMPRESSOR OVER-
HAULÓ
·Replace the compressor
·Replace the compressor
·Discharge and recover refrigerant.
Recharge to specified amount.
·Check refrigerant system for leaks
and repair as necessary
Discharge and recover refrigerant.
Recharge to specified amount.
·Clean the condenser or replace as
necessary
·Check radiator or condenser fan
function
·Repair the link unit
·Replace the expansion valve
·Check electronic thermostat and
replace as necessary
·Check evaporator core and replace
or clean the core
·Check evaporator and duct connec-
tion, then repair as necessary
·Refer to Section 00 for ÒFAN
CONTROL KNOB (FAN SWITCH)Ó
troubleshooting
* For the execution of the charging and discharging operation in the table above, refer to the ÒRECOVERY,
RECYCLING, EVACUATING AND CHARGINGÓ in section 1B.
TROUBLEPOSSIBLE CAUSECORRECTION

00 Ð 40 SERVICE INFORMATION
1. Defective rotor/piston
2. Defective bearing (DKS-15CH)
3. Defective shaft
1. Defective bearing
2. Defective clutch
3. Clearance between drive plate
and pulley not standard
1. Defective gasket
2. Defective rotor/reed valve
3. Defective trigger valve/suction
valve
1. Defective rotor/piston
2. Defective shaft
3. Rotating parts seized due to
insufficient oil
1. Defective seal
2. Defective O-ringReplace compressor/cylinder and
shaft assembly
Replace cylinder and shaft assembly
Replace compressor/cylinder and
shaft assembly
Replace magnetic clutch
Replace magnetic clutch
Adjust the clearance or replace
magnetic clutch
Replace compressor/gasket
Replace compressor/valve plate
Replace compressor/suction valve
Replace compressor/cylinder and
shaft assembly
Replace compressor/cylinder and
shaft assembly
Replace compressor
Replace compressor/shaft seal
Replace Noise from compressor
Noise from magnetic
clutch face
Insufficient cooling
Not rotating
Oil and/or gas leakage 1
2
3
4
5
ITEM PROBLEM POSSIBLE CAUSES CORRECTION
COMPRESSOR TROUBLESHOOTING

00 Ð 46 SERVICE INFORMATION
COMPRESSOR
Model DKV-14D
Type Vane rotary (Invariable)
Number of vanes 5
Rotor diameter mm (in.) 64 (2.52)
Stroke mm (in.) 8.75 (0.34)
Displacement cc (Imp fl oz) 140 (3.9)
Maximum speed (rpm) 7,000 (up to 8,400)
Direction of rotation Clockwise (Front-side view)
Lubrication system Pressure differential type
Lubricant cc (Imp fl oz) ZXL-200PG, 150 (4.2)
ISUZU PART NO.
8-97101-336-0
Refrigerant g (lbs.) HFC-134a, 750 (1.65)
Shaft seal Lip type
Weight kg (lbs.) 3.6 (7.94)
MAGNETIC CLUTCH
Type Electromagnetic single-plate dry clutch
Rated voltage 12 Volts D.C.
Current consumption (A) 3.7
Starting torque Nám 39 (4.0 / 30)
(kgám / lbáft)
Direction of rotation Clockwise (Front-side view)
Weight kg (lbs.) 2.2 (4.9)
6VD1/6VE1 (RHD) & 6VD1 (LHD) (SAUDI/PHILIPPINE)
6VD1/6VE1 (LHD) Except SAUDI/PHILIPPINE
COMPRESSOR
Model HD6
Type Vane rotary (Invariable)
Number of vanes 6
Rotor diameter mm (in.) 64 (2.52)
Stroke mm (in.) 24 (0.94)
Displacement cc (Imp fl oz) 164 (4.59)
Maximum speed (rpm) 9,000
Direction of rotation Clockwise (Front-side view)
Lubrication system Pressure differential type
Lubricant cc (Imp fl oz) SD2-231, 150 (4.2)
Refrigerant g (lbs.) R-134a, 750 (1.65)
Shaft seal Lip type
Weight kg (lbs.) 6.8 (14.99)
MAGNETIC CLUTCH
Type Electromagnetic single-plate dry clutch
Rated voltage 12 Volts D.C.
Current consumption (A) 3.7
Starting torque Nám 39 (4.0 / 30)
(kgám / lbáft)
Direction of rotation Clockwise (Front-side view)
Weight kg (lbs.) 2.2 (4.9)