Isuzu KB P190. Manual — part 384

ENGINE COOLING (4JK1/4JJ1) 6B-13

Radiator

Radiator and Associated Parts

RTW76BLF000101

Legend

1. Reserve Tank Hose

2. Reserve

Tank

3. Radiator

Hose

4. Fan Guide; Lower

5. Fan

Guide

6. Radiator

Assembly

7. Drain

Plug

8. Radiator

Cap

9. Bracket

6B-14 ENGINE COOLING (4JK1/4JJ1)

Removal

1. Disconnect battery ground cable.

2. Loosen a drain plug to drain EC.

3.

Disconnect oil cooler hose on automatic

transmission (A/T).

4. Remove the engine cover.

5. Disconnect radiator inlet hose and outlet hose

from the engine.

RTW56BSH000301

6. Remove fan guide (1), clips (2) on both sides and

the bottom lock, then remove lower fan guide (3)

with fan shroud (4).

PTW46BSH000101

Legend

1. Fan

Guide

2. Clips

3. Lower Fan Guide

4. Fan

Shroud

7. Disconnect the reserve tank hose (1) from

radiator.

8. Remove bracket (9).


RTW76BMH000101

Legend

1. Reserve Tank Hose

2. Reserve

Tank

3. Radiator

Hose

4. Fan Guide; Lower

5. Fan

Guide

6. Radiator

Assembly

7. Drain

Plug

8. Radiator

Cap

9. Bracket

9. Lift up and remove the radiator assembly with

hose, taking care not to damage the radiator core

with a fan blade.

ENGINE COOLING (4JK1/4JJ1) 6B-15

Inspection and Repair

Make the necessary adjustments, repairs, and part
replacements if excessive wear or damage is
discovered during 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:

93.3 - 122.7 kPa (0.95 - 1.25 kg / cm

2

/ 13.5 -

17.8 psi)

Cap tester: 5–8840–0277–0

Adapter: 5–8840–2603–0

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:

1.96 - 4.91 kPa (0.02 - 0.05 kg / cm

2

/ 0.28 - 0.71

psi)

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 196
kPa (2.0 kg / cm

2

/ 28.5 psi) with a cap tester:

• Leakage from the radiator.
• Leakage from the coolant pump.
• Leakage from the water hoses.
• Check the rubber hoses for swelling.

110RS005

6B-16 ENGINE COOLING (4JK1/4JJ1)

Installation

1. Install radiator assembly (6) with hose, taking care

not to damage the radiator core with a fan blade.

2. Support the radiator upper tank with the bracket

(9) and secure the radiator.

3. Connect reserve tank hose (1).

4. Install lower fan guide (4).

5. Connect radiator inlet hose and outlet hose (3) to

the engine.

6. Install the engine cover.

7. Connect oil cooler hose to automatic transmission.

8. Connect battery ground cable.


RTW76BMH000101

Legend

1. Reserve Tank Hose

2. Reserve Tank

3. Radiator

Hose

4. Fan Guide; Lower

5. Fan

Guide

6. Radiator

Assembly

7. Drain

Plug

8. Radiator

Cap

9. Bracket

9. Pour engine coolant up to filler neck of radiator,

and up to MAX mark of reserve tank.

Important operation (in case of 100% engine

coolant change) procedure for filling with engine

coolant.

RTW76BSH000101

Engine coolant change

Refer to change procedure for Draining and Refilling
Cooling System in this section.

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Текст

Политика конфиденциальности