2007 ISUZU KB P190 engine

6A-62 ENGINE MECHANICAL (C24SE)
Installation
1. Install new pressure valve into cylinder head - with suitable pipe until stop.

2. Install core hole plugs into cylinder head - with suitable
pipe to end of chamfer.


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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-63
OPERATIONS ON COOLING SYSTEM
Caution!
Before working with the cooling system, be sure to confirm that
the temperature of the engine is cooled down.
Failure to observe this may cause burn.








Cooling System, Check for Leaks
Installation
1. Install commercially available coolant checking instrument onto compensation tank (Refer to section 6B;
Engine cooling).
2. Check coolant level.

Inspection
Use 5-8840-0277-0 tester & 5-8840-2603-0 adaptor.



Cooling System, Fill Up and Bleed
Important!
Radiator and heater core are made from alminium.
To avoid corrosion, use only anti-freeze with corrosion
protection.


Replace Coolant
1. Confirm the engine is cold enough.
2. Open the radiator cap, pour coolant to the filler neck level and close the cap.
3. Pour coolant into the reservoir until MAX line is reached.
4. Start the engine, run 2 ∼ 3 minutes at idling speed and
switch off the engine.
5. Refill coolant if the coolant level is lowered.


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ISUZU KB P190 2007

6A-64 ENGINE MECHANICAL (C24SE)
Important!
Do not loosen or open the radiator cap when coolant is hot.
Doing so may cause hot water or steam to splash out, resulting
in burn. W hen opening the radiator cap, be sure to confirm the
coolant is cold. Cover a thick cloth over the cap and loosen it
slowly to reduce pressure, then open the cap.
6. Close the radiator cap firmly and run the engine at approx. 2000 rpm. In addition, set the heater temperature
adjuster to the max position to circulate coolant in the
heater conduit system.
7. Confirm that the temperature gauge reads half or more of full scale and that the thermostat is activated.
Then continue idling 5 minutes more and switch off the
engine, and allow it to cool.
8. After the engine cools down, check the coolant level and refill it if necessary. W hen the level is lowered extremely,
check the coolant conduit system and reservoir hose for
leak.
9. Pour coolant into the reservoir to MAX level.






Refill Coolant
Important!
After closing the cooling system, let engine run warm until
thermostat opens (coolant approx. 92 °C/197.6F)

Inspection
Coolant level
Allow engine to cool. If necessary, refill coolant.

Check that cooling system self-bleeds during engine warming-
up phase.


Ignition Timing, Check
No Adjustment


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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-65
ENGINE EXTERNAL PARTS
Radiator


Removal
1. Disconnect battery ground cable.
2. Loosen a drain plug to drain EC.
3. Disconnect radiator inlet hose and outlet hose from the engine.






RTW 46BSH000101
4. Remove fan guide(1), clips(2) on both sides and the
bottom lock, then remove lower fan guide(3) with fan
shroud(4).
5. Disconnect the reserve tank hose(6) from radiator.




RTW 36BMH000101
6. Remove bracket(5).

7. Lift up and remove the radiator assembly with hose,
taking care not to damage the radiator core with a fan
blade.


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ISUZU KB P190 2007

6A-66 ENGINE MECHANICAL (C24SE)

Installation
Follow the removal procedure in the reverse order to install the
radiator.



Thermostat
Removal
1. Remove water outlet nozzles with thermostat from thermostat housing.
2. Remove coolant hose and collect coolant.







Important!
Remove and Install thermostat only together with water outlet
nozzles.

Tighten (Torque)
W ater outlet nozzles to thermostat housing - 8 N ⋅m (0.8 kgf ⋅m)

Installation
1. Install coolant hose.
2. Fill cooling system and bleed according to the corresponding operation.











Water Pump
Removal
1. Remove lower hose band from pipe band and collect coolant.
2. Remove front toothed belt cover according to the corresponding operation.
3. Remove water pump from cylinder block after releasing tension on toothed belt.

Clean
Sealing surfaces


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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-67

Coating sealing surfaces with Silicone Grease
Installation
1. Install water pump to cylinder block with new rubber O-ring.
2. Apply tension to toothed belt according to the corresponding operation.
3. Install coolant hoses.
4. Fill cooling system and bleed according to the corresponding operation.











Alternator
Removal
1. Remove ground cable from battery.
2. Remove cable connection from alternator and V-belt.
3. Remove alternator from retaining strap and lower fastening.

Installation
1. Install alternator by tightening firmly by hand.
2. Install V-belt and apply tension according to the corresponding operation.
3. Install cable connections to alternator.
4. Install ground cable to battery.





Starter
Removeal
1. Remove cable connections from starter.
2. Remove upper bolt of transmission side.
3. Remove lower bolt of engine side.

Tighten (Torque)
Starter to cylinder block:
Engine side - 51 N ⋅m (5.2 kgf ⋅m)
Transmission side - 75 N ⋅m (7.6 kgf ⋅m)

Starter support to cylinder block - 25 N ⋅m (2.5 kgf ⋅m)

Re-connect cables.

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ISUZU KB P190 2007

6A-68 ENGINE MECHANICAL (C24SE)
V-belt Tension of Alternator



RTW 66ASH000101
Measure
Measure V-belt tension of alternator.
Permitted values for new V-belt are approx. 311-489N (31-50
kgf).
Note:
V-belt to deflection as loaded with 10kg : 8-12mm.





Adjust
Adjust V-belt tension by loosening clamping bracket and lower
alternator bracket and moving alternator.

Tighten (Torque)
Clamping bracket to alternator - 35 N ⋅m (3.6 kgf ⋅m)
Lower alternator bracket - 25 N ⋅m (2.6 kgf ⋅m)

V-Belt Tension of Power Steering Pump
Measure
Measure V-belt tension of power steering pump. Permitted
values for new belt are approx. 578-712N (59-73 kgf) and 534-
667N (54-68 kgf) for used belt.
Note:
V-belt to deflection as loaded with 10kg : 8-12mm.





Adjust
Adjust V-belt tension by loosening clamping bolt, lower pump
bracket, and adjusting nuts and moving steering pump.

Tighten (Torque)
Adjusting nuts - 18 N ⋅m (1.8 kgf ⋅m)
Clamping bolt - 25 N ⋅m (2.6 kgf ⋅m)
Lower pump bracket - 26 N ⋅m (2.6 kgf ⋅m)


V-Belt Tension of Air Conditioning Compressor
Measure
Measure V-belt tension of air conditioning compressor.
Permitted values for new V-belt are approx. 422N (43 kgf).
Note:
V-belt to deflection as loaded with 10kg : 8-12mm.

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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-69


RTW 66ASH000201

Adjust
Adjust the A/C compressor V-belt (1) for adjustment of belt.
1. Loosen the tension pulley lock nut (2) and tension pulley adjusting bolt (3) of the tension pulley of the A/C
compressor V-belt (1) and bring the belt to free state.
2. Rotate the adjusting bolt (3) of A/C compressor adjust the belt (remove and fit).
• W hen replacing the belt, you must always replace both the belts.
3. After adjustments, tighten the lock nut (2) using the specified torque.
Tightening torque: 40 N ⋅m (4.1 kgf ⋅m)
• Finally, adjust the tension of A/C compressor V-belt.

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ISUZU KB P190 2007