Isuzu Trooper (1998-2002 year). Manual — part 573
6A – 100 ENGINE MECHANICAL
REMOVAL
1. Disconnect battery ground cable
2. Drain engine coolant
3. Remove front exhaust pipe
4. Remove heat protector
5. Remove exhaust valve assembly
6. Oil cooler assembly
1) Remove water hoses from inlet and outlet pipe.
2) Put rag beneath side of oil cooler to prevent oil
leaking.
3) Remove fixing bolts and oil cooler assembly.
INSTALLATION
1. Oil Cooler
1) Tighten oil cooler fixing bolt to the specified
torque and connect water hose.
Torque: 29 N·m (3.0 kg·m/22 lb ft)
2. Exh. Valve Assembly
1) Install exhaust valve assembly with gasket and
tighten fixing bolts to the specified torque.
Torque: 57 N·m (5.8 kg·m/42 lb ft)
3. Heat Protector
4. Front Exhaust Pipe
1) Install front exhaust pipe and tighten fixing bolts
to the specified torque.
Exh. Valve Side: 67 N·m (6.8 kg·m/49 lb ft)
Intermediate Pipe Side: 43 N·m (4.4 kg·m/32 lb ft)
5. Fill engine coolant.
6. Connect battery ground cable.
7. Start engine and check for oil and water leakage
carefully.
ENGINE COOLING 6B – 1
ENGINE COOLING
CONTENTS
General Description . . . . . . . . . . . . . . . . . .
6B–2
On-Vehicle Service . . . . . . . . . . . . . . . . . . .
6B–6
Water Pump . . . . . . . . . . . . . . . . . . . . . .
6B–6
Thermostat . . . . . . . . . . . . . . . . . . . . . . .
6B–7
Radiator . . . . . . . . . . . . . . . . . . . . . . . . .
6B–9
Drive Belt Adjustment . . . . . . . . . . . . . . .
6B–11
6B – 2 ENGINE COOLING
Legend
(1)
Turbocharger
(2)
Thermostat
(3)
Reservoir Tank
(4)
Radiator
(5)
Bypass
(6)
Oil Cooler
(7)
Cooling fan
(8)
Water Pump
(9)
Thermo Valve
(10)
Car Heater
(11)
EGR Cooler
GENERAL DESCRIPTION
COOLANT FLOW
1
6
9
9
For Europe only
10
8
4
3
2
5
7
11
032R200001
The cooling system is a pressurized coolant forced
circulation type which consists of water pump,
thermostat, cooling fan, radiator and other components.
The circulating coolant cools the lubricating oil in the oil
cooler and turbocharger.
ENGINE COOLING 6B – 3
WATER PUMP
The coolant pump is a centrifugal impeller type and is
driven by V type drive belt.
Legend
(1) Roller Bearing
(2) Ball Bearing
(3) Seal Unit
THERMOSTAT
The thermostat is a wax pellet type with a jiggle valve
and is installed in the thermostat housing.
Legend
(1) Bolt
(2) Thermostat Housing
(3) Thermostat
(4) Intake Manifold
RADIATOR
The radiator is a tube type with corrugated fins. In order
to raise the boiling point of coolant, the radiator is fitted
with a cap in which the valve is operated under the
pressure.
1
3
2
PCD 60
A06RW024
1
2
3
4
032RW002
110RS001
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