Isuzu KB P190. Manual - part 211

ENGINE MECHANICAL   6A – 39 

 

 

18. Radiator 

1)  Drain the engine coolant. 

2)  Remove the reservoir hose. 

3)  Remove the upper and lower hose. 

4)  Remove the fan guide. 

5)  Remove the radiator. 

 

 

 

 

 

19. Fan 

 

P1010034 

 

20. Air  cleaner 

1)  Remove the MAF sensor connector (4JA1TC/4JH1TC) 

from air cleaner duct. 

2)  Remove the air cleaner duct and the air cleaner box 

from engine room. 

3)  Remove the two air ducts from inter cooler 

(4JA1TC/4JH1TC). 

 

 

21. Power Steering Pump 

Loosen the power steering pump adjust plate bolt, then 
remove the power steering pump assembly. Place the 
power steering pump assembly along with piping on the 
body side. 

22. Air conditioner compressor 

1)  Remove air compressor magnet connector. 

2)  Remove the air conditioner compressor. Place the air 

conditioner compressor along with piping on the body 
side. 

23. Engine Control Cable 

Remove the engine control cable from its bracket 
(4JA1TC/4JH1TC) or the injection pump (4JA1T(L)). 

 

 

24. Vacuum  Piping 

Remove the vacuum pipe from the vacuum pump, the 
EGR valve, injection pump FICD (4JA1T(L)). 

 

 

25. Engine  Harness 

1)  Remove following connectors from engine. 

• TPS 

connector 

•  Oil pressure switch connector 
•  Thermo switch connector 
•  Injection pump connector 
• Engine 

earth 

•  Thermometer unit connector 
• TDC 

sensor 

2)  Remove the clips fixing engine harness. 

P1010009

 

6A – 40  ENGINE MECHANICAL 

 

140R300001 

 

26. Fuel  Hose 

Remove the fuel hose from the fuel filter (Except EURO 
III). 

 

   

RTW46ASH000501 

 

Remove the fuel hose from injection pump (EURO III 
only). 

 

 

27. Exhaust  Pipe 

Remove the front exhaust pipe bolts and separate the 
exhaust manifold and the front exhaust pipe. 

 

 

28. Engine  Assembly 

1)  Remove two right side engine foot bolts. 

2)  Remove two left side engine mount bolts. 

3)  Use the hoist to lift the engine from the engine 

compartment. 

 

 

 

 

 

 

 

 

 

 

 

Installation 

To reassemble, follow the removal steps in the reverse 
order. 

 

 

022R300002

F06R300008

ENGINE MECHANICAL   6A – 41 

 

 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 

Coolant Replenishment 

Warning: 

When the coolant is heated to a high temperature, be 
sure not to loosen or remove the rediator 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. 

1.  Open rediator cap pour coolant up to filler neck 

2.  Pour coolant into reservoir tank up to "MAX" line 

3.  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. 

4.  After replenish the 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. 

5.  Check to see the thermometer, continuously idling 5 

minutes and stop the engine. 

6.  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. 

7.  Pour coolant into the reservoir tank up to "MAX" line. 

 

Coolant Capacity 

lit (US/UK gal)

 

4JA1 / TC 

9.4 (2.5 / 2.1) 

4JH1TC 

M/T: 10.1 (2.7 / 2.2) 

A/T: 10.0 (2.6 / 2.2) 

 

 

 
 
 
 
 
 
 
 
 

 
 
 
 
 
 
 
 
 
 
 
 
 
 

Engine Warm-Up 

After completing the required maintenance procedures, 
start the engine and allow it to idle until it is warm. 

Check the following: 

1.  Engine idling speed. 

2.  Engine noise level. 

3.  Engine lubricating system and cooling system. 

Carefully check for oil and coolant leakage. 

4. Clutch 

engagement. 

5. Transmission 

operation. 

6.  Indicator warning light operation. 

 

 

6A – 42  ENGINE MECHANICAL 

 

ENGINE REPAIR KIT 

 

 

 

 

 

RTW36ALF000601 

 

Removal Steps 

 

 

 

1. Cylinder head gasket 

 

2. Head cover gasket 

 

3. Head cover cap nut gasket 

 

4. Drain cock gasket 

 

5. Crankshaft rear oil seal 

 

6. Gear case gasket 

 

7. Oil pan drain plug gasket 

 

8. Oil pan gasket 

 

9. Oil filter gasket 

  10. Joint bolt gasket 

 

  11. Vacuum pump gasket 
  12. Water pump O-ring 
  13. Water outlet pipe gasket 
  14. Intake pipe gasket 
  15. Thermostat housing gasket 
  16. Intake manifold gasket 
  17. Exhaust manifold gasket 
  18. Nozzle holder O-ring 
  19. Nozzle holder gasket 
  20. Crankshaft front oil seal 

 

NOTE 

Discard all O-rings, gaskets, and seals removed at disassembly and replace them with new ones. Reuse of 
these parts will result in oil, water, and gas leakage.