1998 ISUZU TROOPER Remove engine

6A2 Ð 4 4JG2-NA/4JG2-TURBO ENGINE
118 (12.0/87)N·m(kg·m/lb·ft)
ENGINE MOUNT (LH)
REMOVAL
Preparation:
·Disconnect battery ground cable
·Support engine
·Support vehicle
1. Front Tire
2. Dust Cover
3. Engine Mount
·Remove fixing bolts from cylinder body and
chassis frame.
INSTALLATION
3. Engine Mount
·Tighten the fixing bolts to the specified torque
2. Dust Cover
1. Front Tire
·Tighten the fire fixing nuts to specified torque
40 (4.1/30)
N·m(kg·m/lb·ft) Cylinder body side
40 (4.1/30)
N·m(kg·m/lb·ft) Chassis frame side
41 (4.2/30)
N·m(kg·m/lb·ft) Chassis frame side

4JG2-NA/4JG2-TURBO ENGINE 6A2 Ð 5
INTERCOOLER (4JG2-T only)
REMOVAL
Preparation:
·Disconnect battery ground cable
1. Air Cleaner Cover & Air Duct
·Remove bolts from intercooler.
2. Vacuum Hose
3. Intercooler Assembly
·Disconnect outlet hose from intake manifold.
·Remove bolts from engine side brakets.
INSTALLATION
3. Intercooler
·Connect outlet hose to intake manifold.
·Install intercooler and tighten fixing bolts to the
specified torque.
19 (2.0/14)N·m (Kg·m/lb·ft)
2. Vacuum Hose
1. Air Cleaner Cover & Air Duct

6A2 Ð 6 4JG2-NA/4JG2-TURBO ENGINE
CYLINDER HEAD COVER
REMOVAL
Preparation:
·Disconnect battery ground cable.
1. Air Cleaner Cover & Air Duct (4JG2-T only)
·Disconnect two air hose.
·Release clips and bands and remove air cleaner
cover.
2. Intercooler Assembly (4JG2-Tonly)
·(Refer to intercooler removal steps in this section)
3. Heater and Oil Cooler Pipe Fixing Bolts
·Remove fixing bolts from.
4. Oil Level Gauge Tube
5. Cylinder head cover

6A2 Ð 8 4JG2-NA/4JG2-TURBO ENGINE
INLET MANIFOLD
REMOVAL
1. Intercooler (4JG2-T only)
2. Oil Level Gauge Tube (4JG2-T only)
3. Heater and Oil Cooler Pipe Fixing Bolts.
·Remove fixing bolts from inlet manifold.
4. Injection Pipes
5. Inlet Manifold
INSTALLATION
5. Inlet Manifold
·Tighten the fixing bolts and nuts to the specified
19 (1.9/14)
N·m(Kg·m/lb·ft) Bolt
24(2.4/18)N·m(Kg·m/lb·ft)
Nut

4JG2-NA/4JG2-TURBO ENGINE 6A2 Ð 11
TURBOCHARGER (4JG2-T only)
REMOVAL
Preparation
·Space stand and remove right front tire
·Remove battery
·Drain coolant
1. Air Cleaner Cover & Air Duct
·Disconnect connecting rubbers and stay fixing
bolts.
2. Intercooler Assembly (4JG2-T Only)
·Refer to intercooler removal steps in this section.
3. Power Steering (P/S) Pump Drive Belts
·Loosen P/S pump fixing bolts and adjusting bolt
and remove two drive belt.
4. Engine Ground Cable

6A2Ð 12 4JG2-NA/4JG2-TURBO ENGINE
5. Air Conditioner (A/C) Compressor Assembly
·Remove A/C compressor fixng bolt (rear under
side of compressor) by using a long extension bar
at under side of wheel arch.
·Disconnect magnetic clutch harness connector.
·Removal fixing bolts (upper and front lower sides
of compressor) and set A/C compressor asm with
pipelines on battery cable.
6. Water Inlet Pipe: Turbo (4JG2-T Only)
7. Oil Feed Pipe: Turbo (4JG2-T Only)
·Remove joint bolt from turbo charger.
·Plug up oil port of turbocharger to prevent
entrance of foreign material.
8. Oil Return Pipe: Turbo (4JG2-T Only)
·Disconnect oil return pipe flange from
turbocharger.
9. Water Outlet Pipe: Turbo (4JG2-T Only)
10. Exh. Pipe: Ft (4JG2-T Only)
11. Heat Protector (4JG2-T Only)
12. Exh. Adapter (4JG2-T Only)
13. Turbocharger Assembly (4JG2-T Only)
·Remove turbocharger asm from exhaust
manifold.

4JG2-NA/4JG2-TURBO ENGINE 6A2 Ð 15
TIMING GEAR
REMOVAL
Preparation:
·Disconnect battery ground cable.
·Drain coolant.
1. P/S Pump Drive Belt
·Loosen P/S pump mounting bolt and adjust bolt,
and remove the drive belt.
2. AC Generator Drive Belt
·Loosen AC Generator mounting bolt (under side)
and adjust plate lock bolt, and remove the drive
belt.
3. Cooling Fan Assembly
·Remove clamp nut, and remove cooling fan asm,
distant pipe, and fan pulley.
4. Crankshaft Damper Pulley
5. Upper Noise Shield Cover
6. Lower Noise Shield Cover
7. Noise Cover Spacer.
8. Timing Gear Case Cover
9. Oil Pipe
10. Idler Gear ÒBÓ and Shaft
1) Measure the camshaft timing gear backlash and the
crenkshaft timing gear backlash before removing the
idler gear.

6A2 Ð 16 4JG2-NA/4JG2-TURBO ENGINE
2) Measure the idler gear end play before removing the
idler gear.
NOTE:
Refer to the following items for details on the backlash
and end play measurement procedures.
Timing Gear Backlash Measurement
1) Set a dial indicator to the timing gear to measured.
Hold both the gear to be checked and the adjoining
gear stationary.
2) Move the gear to be checked as far as possible to
both the right and the left.
Take the dial indicator reading.
It the measured value exceeds the specified limit, the
timing gear must be replaced.
Idler Gear "A" End Play Measurement
Insert a feeler gauge between the idler gear and the thrust
collar to measure the gap and determine the idler gear
end play.
If the measued value exceeds the specified limit, the the
thrust collar must be replaced.
Standard
mm (in) Timing Gear Backlash
0.10-0.17 (0.0039-0.0067)Limit
0.30 (0.012)
11. Idle Gear
12. Injection Pump
1) Remove the six injection pump bracket bolts 1 from
the timing gear case.
Standard
mm (in) Idler Gear End Play
0.07 (0.0028)Limit
0.2 (0.0079)