Isuzu KB P190. 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)