Isuzu KB P190. Service manual - part 506

6A-10 ENGINE MECHANICAL (C24SE) 

Top View 

 

ENGINE MECHANICAL (C24SE) 6A-11 

Main Data and Specifications 

Engine - General 

C24SE 

Engine type 

Four-cycle, water cooled cross-flow with single over head 

camshaft  

Micro-computer control, fuel injection 

Combustion chamber type (Volume) 

Hemispherical (43.3cm

3

) 

Timing train system 

Belt drive 

No. of cylinders-bore 

× stroke mm (in) 

4-87.5

×100.0 (3.44×3.93) 

Bore Spacing(C/L to C/L) 

93.0 mm (3.66 in) 

Firing Order 

1-3-4-2 

Bore

×Stroke mm (in) 

87.5

×100.0 (3.44×3.93) 

Total piston displacement cm

3

 (in

3

) 2,405(146.80) 

Combustion Chamber Volume 

43.3cm

3

 

No. of piston ring 

Compression ring: 2, Oil ring: 1 

Compression pressure kg/cm

2

 (psi/pa) 

12.2-16.3 (174-232/1200-1600) 

Ignition timing (BTDC) 

No adjustment 

Idling speed: rpm(WO/AC,W/AC) A/C off 

825 

Valve clearances (At cold) 

 

Intake mm (in) 

0 (0) (Hydraulic valve lash adjustment) 

Exhaust mm (in) 

0 (0) (                        "                          ) 

Open at (BTDC) deg 

17

°30’ 

Close at (ABDC) deg 

76

°30’ 

Exhaust valves 

 

Open at (BBDC) deg 

58

°30’ 

Close at (ATDC) deg 

35

°30’ 

Ignition system 

Fully transistorized battery ignition 

Distributor type 

Not applicable, Electronic Spark Timing control 

Distributor advance type 

Not applicable, Electronic Spark Timing control 

Spark plug type 

RN9YC4 

Spark plug gap mm (in) 

1.0--1.1 (0.039--0.043) 

Lubrication system 

 

Lubricating method 

Fully flow pressure circulation 

Special engine oil (API grade) 

SE, SF, SG or SH grade 

Oil pressure kg/cm

2

 (psi/Pa) rpm 

4-4.6 (56.9-65.4/400-450) 

Oil pump type 

Gear 

Oil filter type 

Cartridge full flow 

Oil capacity lit. (US/UK gal.) 

4.25 

Cooling system 

 

Radiator type 

Corrugated fin with reserve tank 

Coolant capacity lit.  
(US/UK gal.) 

2.3 (0.66/0.55) 

Water pump type 

Centrifugal 

Thermostat 

Wax pellet with jiggle hole 

6A-12 ENGINE MECHANICAL (C24SE) 

Engine - General 

C24SE 

Fuel system 

Electronically controlled Multi Port Fuel Injection System 

Fuel pump type 

Electric 

Fuel pressure kg/cm

2

 (psi/Pa) 

3.4 (48.4/334) 

Fuel filter type 

Cartridge paper element 

Air cleaner type 

Dry paper element 

Battery Type/V-Ax No. of units 

34B19L/50D20L 

Alternator 

 

Capacity V-A(W) 

12-90 (1080), 12-100 (1200) 

Starter 

 

Output V-kW 

1.4 

Exhaust system CO Adjustment 

(1) Applicable to Open Loop System (Not equipped H2OS) 

 

(2) Not applicable to Closed Loop System (Equipped H2OS) 

Compression Ratio (with Tolerance) 

9.6:1

±0.25 

Cylinder Head Material 

Aluminum Alloy (gravity cast) 

Cylinder Block Material 

Cast Iron 

No. of Mounting Points (including trans.) 

3 

Engine Installation Angles  

-Longitudinal

4

° 60' 

-Lateral

7

° 50' (towards exhaust side) 

Overall Dimensions  (L 

×××× W ××××H): 

 

- TF (2.4Litre/2WD)

610

×564×708mm 

- TF (2.4Litre/4WD)

610

×564×746mm 

Engine Weight 

 

Engine Weight 

 - TF (2.4Liter/Man)

140kg 

Camshaft Type 

SOHC 

No. of Valves per Cylinder  

- Inlet

1 

- Exhaust

1 

Spark Plug Location 

Side 

Port Arrangement 

Cross Flow 

Working Principle 

Spark Ignition 4-stroke 

 

ENGINE MECHANICAL (C24SE) 6A-13 

Valve System 

C24SE 

Actuation Type 

Direct-acting Inverted Bucked Tappet 

Valve Clearance Adjustment 

Hydraulic 

Valve Rotor Type 

None 

Inlet-Valve Material 

Chromium Alloyed Steel 

-Seat Insert Material

Sintered Iron 

Exhaust-Valve Material 

Head: Cr-Mn-Ni Alloyed Shaft: Cr-Si Alloyed &Cr plated 

-Seat Insert Material

Sintered Iron 

Valve Spring Material 

GME 06 100-C1 

Valve Guide Material 

QS 13 MR 00 

Valve Seal Type 

Lip 

 

Water Pump 

C24SE 

Type Centrifugal 

Drive-Material &Type 

HNBR Toothed-belt 

Bearing Type 

Double Row Ball 

Shaft Seal Type 

Mechanical Ceramic 

 

Thermostat-Coolant C24SE 

Type 

Bypass 

 

Oil Pump & Filter 

C24SE 

Type Gear 

Pump 

Location 

Front of Engine 

Drive 

Direct Crankshaft Driven 

Filter Type 

Full Flow with Bypass for blocked filter 

 

Oil & Oil Reservoir 

C24SE 

Reservoir-Description & Location 

1-piece below Engine 

Reservoir Material 

Aluminum Alloy (pressure cast) 

Replacement Oil Fill Volume 

 

-With Filter change

4.25liters 

-Without Filter change

4.00liters 

Recommended Oil-Run-in 

10W/30SG 

-Service (above-18

°C)

10W/40SG 

-Service (below-18

°C)

5W/30SG 

Oil Classification 

API&CCMC 

 

Ignition Components 

C24SE 

Spark Plugs 

Conventional 

Type 

Electronic Spark Control 

No. of Coils &Type 

2 Solid State 

Coil Location 

Engine-mounted 

Ignition Lead Type 

Inductive (hi-resistance)