2007 ISUZU KB P190 technical data

GENERAL INFORMATION 0A-3
NOTES ON THE FORMAT OF THIS MANUAL
1. Find the applicable section by referring to the index at the front of the W orkshop Manual binder.
2. The following technical service information is included in this Section: • Identification
• Maintenance schedules
• Recommended Iubricants
• Recommended fuels
• Oil viscosity charts
3. Individual sections of this W orkshop Manual are divided into the following categories: • Main data and specifications
• Torque specifications
• Recommended liquid gasket
• Loctite application procedure
• Servicing
• Removal and installation
• Disassembly
• Inspection and repair
• Reassembly
• Troubleshooting
4. Each "Major Components" page of this W orkshop Manual has an exploded view of the applicable area.
A brief explanation of the notation used follows:



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ENGINE MECHANICAL (C24SE) 6A-3
PAGE
ENGINE EXTERNAL PARTS ........................................................................................... 6A-65 Radiator ....................................................................................................................... 6A-65
Thermostat .................................................................................................................. 6A -66
Water Pump ................................................................................................................. 6A- 66
Coating sealing surfaces with Silicone Grease ....................................................... 6A-67
Alternator ..................................................................................................................... 6A-67
Starter ........................................................................................................................ .. 6A-67
V-belt Tension of Alternator ....................................................................................... 6A-68
FUEL INJECTION SYSTEM ............................................................................................. 6A-70 Map Sensor ................................................................................................................. 6A- 70
Pressure Regulator..................................................................................................... 6A-70
ECM (Engine Control Module) ................................................................................... 6A-70
ECT............................................................................................................................ ... 6A-71
Idle Air Control(IAC) Valve ......................................................................................... 6A-71
Ignition Coil ................................................................................................................. 6A-71
Crank Position Sensor ............................................................................................... 6A-72
FUEL INJECTOR .............................................................................................................. 6A- 73
Knock Sensor.............................................................................................................. 6A-7 3
Oxygen Sensor............................................................................................................ 6A-74
Throttle Valve Position Sensor .................................................................................. 6A-74
Acclelerator Pedal and Cable .................................................................................... 6A-74
Air Cleaner Filter ......................................................................................................... 6A- 75
Spark Plug Thread ...................................................................................................... 6A-76
TECHNICAL DATA ........................................................................................................... 6A-77
Recommended Troque Values .................................................................................. 6A-88
SPECIAL SERVICE TOOL ............................................................................................... 6A-89


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ISUZU KB P190 2007

6A-44 ENGINE MECHANICAL (C24SE)








Valve, Grind
Valves can be reused once or twice after regrinding-only if
there are no crater-like burns on the valve cone.
Excessive grinding can cause the upper valve head edge to
become too thin.

Important!
Valve stem protection must not exceed dimension “A”-use 5-
8840-2596-0.
Do not regrind valve stem ends.
For all valve reworking note that angle of valve head is 44 °and
the valve seat 45 °-see also “Technical Data”.












Valve, Grind In
Grind-In the valve to improve valve seating.
Grind-In by rhythmically lifting valves and turning uniformly.
Use commercially available grinding tool.

Important!
Use only fine-grained pastes for grinding.
Lubricate valve stem before grinding in.

Clean
After grinding, carefully clean valve and valve soat.








Valve Guide, Ream
Measure
Diameter of valve guide-dial gauge and internal measuring
instrument.

Important!
Valve oversizes are available ex-works.
Oversize identification, on the valve guide and on the valve
stem end with the following specified identificaton
flgures/letters-see also “Technical Data”.



Identification Mark
Size Production Customer Service Reamer

Normal none K
0.075 mm 1 K1
0.150mm 2 K2

Ream valve guide from the upper side of the cylinder head to
the next oversize (use 5-8840-2599-0).
After reaming, cross out identification mark and stamp in new
identification mark.


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ENGINE MECHANICAL (C24SE) 6A-53

4. Heat a new con-rod to 280
°C in the oil bath.
5. Install the con-rod to the piston and insert the piston pin.


Important!
Since the con-rods have no weight balancing studs, re-working
is not possible.
Exchange con-rods in sets only.
Installation position, beads on con-rod point to the flattening on
the piston pin eye.
Firmly seated piston pin cannot be pushed in. Carry out
installation quickly.








Piston Rings
Removal
1. Remove piston with con-rod according to the corresponding operation.
2. Remove piston rings using commercially available ring installer or piston ring clamp pliers.

Clean
Piston ring grooves - ground piece of old piston ring


Inspection
Piston ring gap
For piston ring sizes, permissible piston ring gaps - see
"Technical Data"


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ENGINE MECHANICAL (C24SE) 6A-55
OPERATIONS ON REMOVED ENGINE
Crankshaft






















Removal
1. Mount the engine on an engine overhaul stand with appropriate adapters.
2. Remove the aggregates, flywheel/drive disc, oil pan, bearing bridge and oil pump according to the
corresponding operation.
3. Mark the con-rod bearing cover.
4. Remove the crankshaft bearing cover.
5. Remove the crankshaft from cylinder block.

Inspection
Remove and install all parts if necessary.

Crankshaft pulse pickup sensor rotor inspection and repair.
Inspect the crankshaft pulse pickup sensor rotor for excessive
wear and damage.
Replace the crankshaft pulse pickup rotor if the inspection
results exceed wear and damage limits.

Installation
1. Install the crankshaft pulse pickup sensor. Torque: 13N !
!!
!
m (1.3 kgf !
!!
!
m)
2. Install new bearing shells into the cylinder block and bearing cover.
3. Coat the bearing shafts with engine oil. For oversizes-see “Technical Data”
4. Install a new crankshaft into the cylinder block.








Note
The sealing of the crankshaft can be corrected with light
blows with a rubber hammer on the crank arm (arrowed).


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6A-56 ENGINE MECHANICAL (C24SE)





5. Apply a bead of sealant (TB-1207C or equivalent) in the grooves of both bearing shells.

Important!
After installation of bearing cover, press in sealing compound
again from above, until compound emerges at the joints.


Torque - Angle Method
Bearing cover to cylinder block - 50 N ⋅m (5.1 kgf ⋅m) +40 ° to
50 °
Con-rod bearing cover to con-rod - 35 N ⋅m (3.5 kgf ⋅m) +45 ° to
60 °.
Use new bolts.

6. Install oil pump, oil pan, bearing bridge rear crankshaft
sealing, flywheel/drive plate, and aggregates according to
the corresponding operations.









Inspection
Bearing play - bearing cover removed

Measure
W ith "Plastigage" (ductile plastic threads)
Cut threads to length of bearing width and lay axiaity between
crankshaft journal and bearing shell (arrowed).
Install bearing cover with correct torque.

Important!
Grease crankshaft journal and lubricate bearing shell slightly
so that the thread does not tear when the bearing cover is
moved.


Crankshaft
Inspection
End play when bearing shells are installed.
Front end contact surfaces of flywheel/flexible plate.
Permissible end play - see "Technical Data "


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ENGINE MECHANICAL (C24SE) 6A-57



Inspection
Out-of-round (run-out)-middle bearing shell removed when
mounting on front and rear bearing.
Permissible out-of-round - see "Technical Data"


Bearing Free Play Measurement
Two methods for measuring bearing free play are described -
1. Plastigage method and 2. micrometer and gauge method.
The two procedures are suitable for measuring both con-rod
and main bearing free play.
For both methods ensure con-rod and main bearing caps are
identified (1) prior to removal as they are machine matched.











1.Plastigage Method
Removal
1. Remove bearing cap and shell.
2. Lightly coat journals and bearings with engine oil to prevent Plastigage from tearing when cap is removed.

Installation
1. Lay a length of Plastigage across width of crank pin and fit bearing cap and shell using old bolts at this stage.

Important!
Do not allow crankshaft to rotate.

Torque - Angle Method
Main bearing cap bolt - 60 N ⋅m (6.1 kgf ⋅m) +40 ° + to 50 °.
Con-rod bearing cap bolts - 35 N ⋅m (3.6 kgf ⋅m) +45 °.



Removal
1. Remove bearing cap and shell.

Measure
W idth of Plastigage -use scale supplied with Plastigage.

If con-rod bearing clearance exceeds 0.031mm/0.001in or
main journal bearing clearance exceeds 0.04mm/0.02in. -
check crankshaft journal diameters - see corresponding
operation.
Replace bearing if crankshaft is within specification - see
"Technical Data"

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6A-58 ENGINE MECHANICAL (C24SE)








Clean
Plastigage from journals.

Lightly coat journals and bearings with engine oil.

Installation
Install bearing cap and shell using new bolts.

Torque - Angle Method
Main bearing cap bolt - 60 N ⋅m (6.1 kgf ⋅m) +40 ° to 50 °.
Con-rod bearing cap bolts - 35 N ⋅m (3.9 kgf ⋅m) +45 °.








2.Micrometer and gauge method.
Crankshaft removed.

Installation
1. Install caps and bearing shells to con-rods and cylinder block.


Measure
Con-rod and main bearing diameters at three points I, II, III
(arrowed).
Divide the sum of the three measurements by three to obtain a
mean diameter.

The top illustration shows con-rod measuring points.
The second illustration shows main bearing measuring points.



Measure
Crankshaft main and con-rod bearing journals at points I and
II. Divide the sum of both measurements to obtain a mean
diameter.

Crankshaft must be replaced if mean diameter of main or con-
rod journals is below specified limit - see "Technical Data".

If crankshaft is serviceable subtract crankshaft mean journal
diameters from corresponding shell bearing mean diameters to
determine bearing clearance.

Permissible main bearing clearance - 0.015 to 0.04mm/0.0006
to 0.002in.
Permissible con-rod bearing clearance - 0.006 to
0.031mm/0.002 to 0.001in.

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