2007 ISUZU KB P190 lock

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-339
Fuel System ChecksInspect the fuel system for the following conditions. Refer to Fuel System Check Chart
and appropriate procedure in the Fuel System section.
• Air in the fuel system.
• Water contamination in the fuel.
• Fuel waxing or icing.
• Fuel filter indicator lamp is continuously or frequently turned ON with engine run.
• External fuel leaks or high engine oil level.
• In-tank fuel pump operation. Refer to In-tank Fuel Pump System Check in this section.
• Fuel leak off from the fuel pressure limiter valve and fuel injectors.
• Fuel lines between the fuel tank and fuel supply pump for being crushed, kinked, tightness, cracks and plugged.
• A plugged fuel tank vent valve and hose.
• Inside the fuel tank for any foreign material that may be getting drawn into the fuel line pickup causing a blocked condition.
• Fuel supply pump operation.
Notice: The fuel supply pump must be timed to the engine and adjustment value must
be learned to the ECM.
• Perform the Cylinder Balance Test with a scan tool.
• Perform the Injector Force Drive with a scan tool.
• Observe the Fuel Compensation for each cylinder at idle on the scan tool.
Air Intake System Checks Inspect the air intake system for the following conditions.
• Air cleaner, air intake ducts and charge air cooler for a restriction, holes, or leaks.
• A restriction in the turbocharger inlet duct.
• Intake throttle valve for a stuck condition.
• A restriction or leak in the intake manifold.
• A restriction or damaged at MAF sensor.
• Perform the Swirl Control Solenoid Test with a scan tool. Inspect the diaphragm valve operation when it commanded ON/ OFF.
• A worn or damaged turbocharger turbine wheel, shaft or compressor wheel. Refer to turbocharger inspection in the Engine Mechanical section.
• Turbocharger wastegate valve operation. Refer to wastegate valve inspection in the Engine Mechanical section. (Standard output)
• Turbocharger nozzle control actuator operation. Refer to Turbocharger Control System Check in this section. (High output)
Exhaust System Checks Inspect the exhaust system for a possible restriction. Refer to the Exhaust System
section.
Engine Mechanical Checks Inspect the engine mechanical for the following conditions. Refer to the Engine
Mechanical section.
• Poor cylinder compression.
• Improper valve gap.
• Broken or weak valve springs.
• Worn camshaft lobes.
Additional Checks • Inspect the EGR system operating correctly. Refer to EGR Control System Check in
this section.
• Inspect for an engine overheat condition. Refer to Engine Cooling section.
• Inspect the A/C operation.
• Inspect the torque converter clutch (TCC) operation. (A/T only)
Checks
Action

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ISUZU KB P190 2007

ENGINE CONTROL SYSTEM (4JK1/4JJ1) 6E-357
The boost pressure sensor is located in the air
induction tubing. The boost pressure sensor is a
transducer that varies voltage according to changes in
the air pressure inside the air tubing. The boost
pressure sensor provides a signal to the ECM on the
signal circuit, which is relative to the pressure changes
in the air tubing. The ECM should detect a low signal
voltage at a low boost pressure, such as low engine
load. The ECM should detect high signal voltage at a
high boost pressure, such as high engine load.
Camshaft Position (CMP) Sensor
Legend 1. Timing chair sprocket
2. Camshaft position (CMP) sensor
3. Rotating direction

The CMP sensor is installed on the timing chain
sprocket cover at the front of the camshaft idle gear.
The CMP sensor detects total of five projections per
one engine cycle (four projections arranged equally
every 90 ° and one reference projection on the timing
chain sprocket surface). The CMP sensor is a magnetic
resistance element (MRE) type sensor, which
generates a square wave signal pulse. Crankshaft Position (CKP) Sensor
Legend
1. Crankshaft position (CKP) sensor

Legend
1. Crankshaft position (CKP) sensor
2. Sensor rotor
3. Rotating direction

The CKP sensor is located on the left-hand of the
cylinder block rear and it is behind the starter motor.
The sensor rotor is fixed on the crankshaft. There are
56 notches spaced 6 ° apart and a 30 ° section that is
open span. This open span portion allows for the
detection of top dead center (TDC). The CKP sensor is
a magnetic resistance element (MRE) type sensor,
which generates a square wave signal pulse.
Detecting the open span portion from the CKP sensor
and one reference projection from the camshaft
position (CMP) sensor, the ECM determines cylinder
#1 compression TDC to ensure they correlate with
each other.
RTW56ESH000401
1
3 2
15
RTW76ESH002301
1
RTW76ESH003301
A
A Section A-A
1
2 3

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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-1
SECTION 6A
ENGINE MECHANICAL
TABLE OF CONTENTS
PAGE
General Description ........................................................................................................ 6A- 4
ENGINE PICTORIAL .................................................................................................... 6A- 6
Main Data and Specification ........................................................................................... 6A-11 CRANKCASE VENTILATION SYSTEM ....................................................................... 6A-16
ENGINE ASSEMBLY & LOOSE PARTS ..................................................................... 6A-17
OPERATIONS ON ENGINE AGGREGATES.................................................................... 6A-18 Engine Damping Blocks(Engine without Transmission) ........................................ 6A-18
Toothed Belt and Timing Check ............................................................................... 6A-21
Toothed Belt Tension, Adjust .................................................................................... 6A-23
Toothed Belt, Replace ................................................................................................ 6A-24
OPERATIONS ON INSTALLED ENGINE ......................................................................... 6A-26 Gasket, Exhaust Manifold, Cylinder Head ................................................................ 6A-26
Gasket, Intake Manifold, Cylinder Head .................................................................... 6A-26
Seal Ring, Camshaft Housing, Timing Side.............................................................. 6A-27
Seal Ring, Thermostat Housing, Cylinder Head....................................................... 6A-27
Seal Ring - Front Camshaft Housing, Replace ......................................................... 6A-28
Toother Belt Rear Cover............................................................................................. 6A-30
Toother Belt Tension Roller ....................................................................................... 6A-31
COMPONENT PARTS ...................................................................................................... 6A-32 Cylinder Head .............................................................................................................. 6A- 32
Hydraulic Valve Lifter ................................................................................................. 6A-33
OPERATIONS ON CYLINDER HEAD AND CAMSHAFT HOUSING ............................... 6A-34 Camshaft ..................................................................................................................... 6 A-34
Camshaft Housing Removal and Installation ........................................................... 6A-35
Cylinder Head .............................................................................................................. 6A- 35
Hydraulic Valve Lifers, Replace................................................................................. 6A-37
Camshaft Housing, Replace ...................................................................................... 6A-37

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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-5
General Information on Engine Service
The following information on engine service should be noted carefully, as it is important in preventing damage and
contributing to reliable engine performance:
z W hen raising or supporting the engine for any reason, do not use a jack under the oil pan. Due to the small
clearance between the oil pan and the oil pump strainer, jacking against the oil pan may cause damage to the
oil pick up unit.
z The 12-volt electrical system is capable of damaging circuits. W hen performing any work where electrical
terminals could possible be grounded, the ground cable of the battery should be disconnected at the battery.
z Any time the intake air duct or air cleaner is removed, the intake opening should be covered. This will protect
against accidental entrance of foreign material into the cylinder which could cause extensive damage when
the engine is started.

Cylinder Block
The cylinder block is made of cast iron. The crankshaft is supported by five bearings. The bearing cap is made of
nodular cast iron.

Cylinder Head
The cylinder head is made of aluminum alloy casting with a spark plug in the center.

Valve Train
Valve system is a single over head camshaft.
The valves clearance adjustment are hydraulic.
Hydraulic valve lifter adjustment, no adjustment necessary.

Intake Manifold
The intake manifold is made of aluminum alloy.

Exhaust Manifold
The exhaust manifold is made of high Si-Mo nodular iron.

Pistons and Connecting Rods
Aluminum pistons are used after selecting the grade that meets the cylinder bore diameter. Each piston has two
compression rings and one oil ring. The piston pin is made of cast hardened steel. The connecting rod bearings are
made of modular cast iron. The connecting rod bearings are made of steel backed with tri-metal babbitt metal.

Crankshaft and Bearings
The crank shaft is made of modular cast iron. Pins and journal are graded for correct size selection for their bearing.


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ISUZU KB P190 2007

6A-12 ENGINE MECHANICAL (C24SE)
Engine - General C24SE
Fuel system Electronically controlled Multi Port Fuel Injection System
Fuel pump type Electric
Fuel pressure kg/cm2 (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/2W D)610×564 ×708mm
- TF (2.4Litre/4W D) 610×564 ×746mm
Engine Weight
Engine W eight
- TF (2.4Liter/Man) 140kg
Camshaft Type
SOHC
No. of Valves per Cylinder
- Inlet1
- Exhaust
1
Spark Plug Location Side
Port Arrangement Cross Flow
W orking Principle Spark Ignition 4-stroke


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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 MaterialSintered Iron
Exhaust-Valve Material Head: Cr-Mn-Ni Alloyed Shaft: Cr-Si Alloyed &Cr plated
-Seat Insert MaterialSintered 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
-W ith Filter change4.25liters
-W ithout 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)



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6A-14 ENGINE MECHANICAL (C24SE)
Crankshaft C24SE
Material Nodular Cast Iron
Bearing subjected to End Thrust Guide Bearing NO.3
Main Bearing-Material &Type Steel Backed Tri-metal Babbitt
Front Seal-Diameter &Type 35.0mm Lip Seal
Rear seal-Diameter &Type 90.0mm Micro-lip Seal
Crankshaft Balancing Individually Balanced
No. of Counterweights 8

Camshaft C24SE
Location Overhead (Cylinder Head)
Material Grey Cast Iron
Bearing Material Aluminum
No. of Bearings Camshaft Drive-Material
&Type 200-250 HB5/750
(Camshaft drive type: toothed belt
Camshaft drive material: rubber composite GD380)

Pistons C24SE
Material Aluminum Alloy
Finish & Type Tin-coated Strutless
Piston Rings
Function (top to bottom)
-Ring 1 Compression Ring

-Ring 2 Compression Ring
-Ring 3 Oil Ring
Description -Ring 1 Rectangular
-Ring 2 Taper Face
-Ring 3 3-piece (2 Scrapers&1 Expander)
Material -Ring 1 Molybdenum Inlay Nodular Cast Iron
-Ring 2 Cast Iron (individually cast)
-Ring 3 Steel
Material Case Hardened Steel
Retention Locked in Rod
Bearing Machined in Piston Pin Boss

Connecting Rod C24SE
Material Nodular Cast Iron
Bearing-Material &Type Steel Backed Tri-metal Babbitt

Inlet Manifold C24SE
Material Aluminum Alloy

Exhaust Manifold C24SE
Description Dual Take-down
Material High Si-Mo Nodular Iron

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6A-18 ENGINE MECHANICAL (C24SE)
OPERATIONS ON ENGINE AGGREGATES
Engine Damping Blocks (Engine Without
Transmission)
Removal
1. Remove bonnet.
2. Remove radiator.
3. Remove air inlet hose.
4. Remove power steering pump drive belt and power steering pump from engine.




5. Remove all cable connections, hoses and lines from
engine.
6. Remove accelerator cable from inlet pipe.


7. Remove exhaust pipe from manifold.




8. Remove lower nine bolts and transmission from engine
block.
9. Remove clutch slave cylinder and allow to hang free.
10. Remove starter from engine block.

11. Remove upper bolts of left and right engine mounting
from damping blocks.
12. Raise engine slightly.
13. Remove lower bolts of left and right damping blocks.
14. Remove damping blocks.

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ISUZU KB P190 2007