Isuzu KB P190. Service manual — part 236

ENGINE MECHANICAL 6A – 139

Illustration

Tool Number

Tool Name

5-8840-2361-0

Front Oil Seal Installer

5-8840-0145-0

Static Timing Gauge

5-8840-2834-0

Adapter Set: Static Timing Gauge

SECTION 6B

ENGINE COOLING

TABLE OF CONTENTS

PAGE

Main Data and Specifications. . . . . . . . . . . . . . . . . . . . . ... 6B - 3

General Description . . . . . . . . . . . . . . . . . . . . . . . . .. 6B - 4

Coolant

Flow. . . . . . . . . . . . . . . . . . . . . . . . . . . ..

6B

- 4

Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6B - 5

Thermostat. . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B - 5

Radiator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6B - 6

Diagnosis . . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6B - 7

Draining and Refilling Cooling System . . . . . . . . . . . . . . . . . ... 6B - 8

Water Pump . . . . . . . . . . . . . . . . . . . . . . . . . . . . ... 6B - 10

Removal and Installation . . . . . . . . . . . . . . . . . . . . . . .. 6B - 10

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B - 10

Inspection and Repair. . . . . . . . . . . . . . . . . . . . . . . ... 6B - 11

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B - 11

Thermostat . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6B - 13

Removal and Installation . . . . . . . . . . . . . . . . . . . . . . .. 6B - 13

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B - 13

Inspection and Repair. . . . . . . . . . . . . . . . . . . . . . . ... 6B - 13

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B - 14

Radiator. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .. 6B - 15

Removal and Installation . . . . . . . . . . . . . . . . . . . . . . .. 6B - 15

Radiator and Associated Parts . . . . . . . . . . . . . . . . . . . . 6B - 15

Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B - 16

Inspection and Repair. . . . . . . . . . . . . . . . . . . . . . . ... 6B - 17

Installation . . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B - 18

ENGINE COOLING 6B – 1

6B – 2 ENGINE COOLING

PAGE

Engine coolant change . . . . . . . . . . . . . . . . . . . . . . . . 6B - 19

Fan Clutch with Cooling Fan . . . . . . . . . . . . . . . . . . . . . . 6B - 20

Inspection and Repair. . . . . . . . . . . . . . . . . . . . . . . ... 6B - 20

Special

Tools . . . . . . . . . . . . . . . . . . . . . . . . . . . .

6B

- 20

ENGINE COOLING 6B – 3

MAIN DATA AND SPECIFICATIONS

Description

Item

M/T A/T

Cooling system

Water pump type

Pump to crankshaft speed ratio

(To 1)

Delivery volume

lit (US/UK gal)/min

Pump speed at 3000 rpm

Water temperature at 30

°C (86°F)

Pump bearing type

Thermostat type

Valve initial opening temperature

°C (°F)

(Oil cooler thermo valve)
(EGR cooler thermo valve)

Valve full opening temperature

°C (°F)

(Oil cooler thermo valve)
(EGR cooler thermo valve)

Valve lift at fully open position

mm (in)

(Oil cooler thermo valve)
(EGR cooler thermo valve)

Engine coolant forced circulation

Centrifugal impeller type

1.2

100 (26.3/22.2)

Double row shaft

Wax pellet with jiggle valve

82 (180)

76.5 (170)

40 (104)

95 (203)

90 (194)
55 (131)

9.5 (0.37)

4.5 (0.18)
3.5 (0.14)

Radiator

Tube type corrugated

Heat radiation capacity

93.0 kW (79,980 kcal/h)

Heat radiation area

11.63 m

2

(1.081ft

2

)

Radiator front area

0.28m

2

(0.026 ft

2

)

Radiator dry weight

52 N (5.3 kg/11.7 lb)

53 N (5.4 kg/11.9 lb)

Radiator cap valve opening pressure

93.3 ~ 122.7 kPa (13.5 ~ 17.8 psi)

Engine coolant capacity

2.4 lit (5.1 U.S pint)

2.3 lit (4.9 U.S pint)

Engine coolant total capacity

10.1 lit (21.3 U.S pint)

10.0 lit (21.1 U.S pint)