Isuzu Amigo / Axiom / Trooper / Rodeo / VehiCross. Service manual — part 229
ENGINE COOLING (6VE1 3.5L)
6B–9
6. Disconnect the reserve tank hose(4) from radiator.
110RX001
7. Lift up and remove the radiator assembly with hose,
taking care not to damage the radiator core with a fan
blade.
8. Remove rubber cushions on both sides at the bottom.
Inspection
Radiator Cap
Measure the valve opening pressure of the pressurizing
valve with a radiator filler cap tester.
Replace the cap if the valve opening pressure is outside
the standard range.
Valve opening pressure kPa (psi) 93.3
∼
122.7
(13.5
∼
17.8)
Cap tester: J–24460–01
Adapter: J–33984–A
Check the condition of the vacuum valve in the center of
the valve seat side of the cap. If considerable rust or dirt is
found, or if the valve seat cannot be moved by hand, clean
or replace the cap.
Valve opening vacuum kPa (psi) 0
∼
6.9 (0
∼
1.0)
110RS006
Radiator Core
1. A bent fin may result in reduced ventilation and
overheating may occur. All bent fins must be
straightened. Pay close attention to the base of the fin
when it is being straightened.
2. Remove all dust, bugs and other foreign material.
Flushing the Radiator
Thoroughly wash the inside of the radiator and the engine
coolant passages with cold water and mild detergent.
Remove all signs of scale and rust.
Cooling System Leakage Check
Use a radiator cap tester to force air into the radiator
through the filler neck at the specified pressure of 150 kPa
(22 psi) with a cap tester:
D
Leakage from the radiator
D
Leakage from the coolant pump
D
Leakage from the water hoses
D
Check the rubber hoses for swelling.
6B–10
ENGINE COOLING (6VE1 3.5L)
Cap tester: J–24460–01
Adapter: J–33984–A
110RX002
Installation
1. Install rubber cushions on both sides of radiator
bottom.
2. Install radiator assembly with hose, taking care not to
damage the radiator core with a fan blade.
3. Connect reserve tank hose (4).
4. Install lower fan guide (3).
5. Connect radiator inlet hose and outlet hose to the
engine.
6. Connect oil cooler hose (1) to automatic
transmission.
110RX001
7. Connect battery ground cable.
8. Pour engine coolant up to filler neck of radiator, and
up to MAX mark of reserve tank.
110RW012
Important operation (in case of 100% engine coolant
change) procedure for filling with engine coolant.
Engine Coolant Filling Up Procedure
1. Make sure that the engine is cool.
WARNING: WHEN THE COOLANT IS HEATED TO A
HIGH TEMPERATURE, BE SURE NOT TO LOOSEN
OR REMOVE THE RADIATOR CAP. OTHERWISE YOU
MIGHT GET SCALDED BY HOT VAPOR OR BOILING
WATER. TO OPEN THE RADIATOR CAP, PUT A
PIECE OF THICK CLOTH ON THE CAP AND LOOSEN
THE CAP SLOWLY TO REDUCE THE PRESSURE
WHEN THE COOLANT HAS BECOME COOLER.
2. Open radiator cap pour coolant up to filler neck.
3. Pour coolant into reservoir tank up to “MAX” line.
4. Tighten radiator cap and start the engine. After idling
for 2 to 3 minutes, stop the engine and reopen radiator
cap. If the water level is lower, replenish.
5. After replenishing with coolant tighten radiator cap,
warm up the engine at about 2000 rpm. Set heater
adjustment to the highest temperature position, and
let the coolant circulate also into heater water system.
6. Check to see the thermometer, continuously idle for 5
minutes and stop the engine.
7. When the engine has been cooled, check filler neck
for water level and replenish if required. Should
extreme shortage of coolant is found, check the
coolant system and reservoir tank hose for leakage.
8. Pour coolant into the reservoir tank up to “MAX” line.
ENGINE COOLING (6VE1 3.5L)
6B–11
Drive Belt and Cooling Fan
Drive Belt and Associated Parts
015RW005
Legend
(1) Crankshaft Pulley
(2) Generator
(3) Power Steering Pump
(4) Water Pump and Cooling Fan Pulley
(5) Idle Pulley
(6) Tension Pulley
(7) Drive Belt
The drive belt adjustment is not required as automatic
drive belt tensioner is equipped.
Removal
Move the tension pulley drive belt loosen side, remove the
drive belt.
Inspection
Check drive belt for wear or damage, and replace with a
new one as necessary.
Installation
Install cooling fan assembly and tighten bolts/nuts to the
specified torque.
Torque : 22 N·m (16 lb ft) for fan pulley and fan
bracket.
Torque : 7.5 N·m (66.4 lb in) for fan and clutch
assembly.
6B–12
ENGINE COOLING (6VE1 3.5L)
Main Data and Specifications
General Specifications
A/T
Cooling system
Engine coolant forced circulation
Radiator
Tube type corrugated (2 tube in row)
Heat radiation capacity
85,500 kcal/h
Heat radiation area
14.02m
@
(150.9ft
@
)
Radiator front area
0.263m
@
(2.83ft
@
)
Radiator dry weight
56N (12.6lb)
Radiator cap valve opening pressure
93.3
∼
122.7kpa (13.5
∼
17.8psi)
Engine coolant capacity
2.4lit (0.6 US gal)
Engine coolant pump
Centrifugal impeller type
Delivery
300 (317) or more
Pump speed
5000
±
50 rpm
Thermostat
Wax pellet type with air hole
Valve opening temperature
74.5
∼
78.5
°
C (166.1
∼
173.3
°
F)
Engine coolant total capacity
10.0lit (2.64 US gal)
Torque Specifications
E06RW004
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