ESP ISUZU KB P190 2007 Workshop Service Manual

6A-26 ENGINE MECHANICAL (C24SE)
OPERATIONS ON INSTALLED ENGINE
SEALING OPERATIONS

Gasket, Exhaust Manifold, Cylinder Head
Removal
1. Remove front exhaust pipe from exhaust manifold.
2. Remove exhaust manifold heat shield.
3. Remove exhaust manifold retaining nut.
4. Remove exhaust manifold from cylinder head.




Clean
Sealing surfaces.

Tighten (Torque)
Exhaust manifold to cylinder head - 22 N ⋅m (2.2 kgf ⋅m)
Front exhaust pipe to exhaust manifold - 25 N ⋅m (2.6 kgf ⋅m)


Gasket, Intake Manifold, Cylinder Head
Removal
1. Remove air intake hose.
2. Remove drive belt for alternator.
3. Remove bolt clamping bracket for alternator from intake manifold.
4. Remove intake manifold from cylinder head.








Clean
Sealing surfaces

Tighten (Torque)
Intake manifold to cylinder head - 22 N ⋅m (2.2 kgf ⋅m)
Clamping bracket for alternator to intake manifold - 25 N ⋅m (2.5
kgf ⋅m)

Installation
1. Install V-belt according to the corresponding operation.
2. Install air intake hose.


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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-27



Seal Ring, Camshaft Housing, Timing Side
Removal
1. Remove front toothed belt cover toothed belt from camshaft timing gear according to the corresponding
operation.
2. Remove camshaft housing cover and camshaft timing gear.
3. Remove sealing ring by making hole in middle of ring, turning in self-tapping screw and edging out.


Installation
1. Install sealing ring by using 5-8840-0451-0 with camshaft sprocket bolt and washer.
2. Install coat seal lips of shaft seal ring slightly.




Seal Ring, Thermostat Housing, Cylinder Head
Removal
1. Open radiator drain tap and collect coolant.
2. Remove toothed belt rear cover and toothed belt according to the corresponding operation.
3. Remove camshaft housing cover.
4. Remove camshaft timing gear by counterholding camshaft with a flat spanner.
5. Remove cable from temperature sensor.






6. Remove upper inner hex bolts of rear toothed belt cover.
7. Turn rear toothed belt cover to one side.
8. Remove thermostat housing.
9. Remove sealing ring from cylinder head.

Clean
Sealing surfaces in cylinder head and thermostat housing.

Installation
1. Install sealing ring in recess of cylinder head.


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ISUZU KB P190 2007

6A-28 ENGINE MECHANICAL (C24SE)


2. Install cable to temperature sensor.
3. Install upper bolts of rear toothed belt rear cover.
4. Install camshaft timing gear then check timing according to the corresponding operation.
5. Install camshaft housing cover.
6. Install toothed belt and front cover.
7. Fill up and bleed cooling system according to the corresponding operation.


Tighten (Torque)
Thermostat housing to cylinder head - 15 N ⋅m/1.5 kgf ⋅m.




Seal Ring - Front Camshaft Housing, Replace
Removal
Mark running direction of toothed belt.
Remove toothed belt-see operation “Toothed Belt, Replace”.

Camshaft housing cover, camshaft pulley-counterhold on hex
of camshaft.


Removal
Screw self-tapping screw into seal ring.

Edge out seal ring.

Installation
Lightly coat sealing lip of seal ring with protective grease.

Install seal ring with 5-8840-0451-0 into camshaft housing-use
screw and washer of camshaft pulley.


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ISUZU KB P190 2007

6A-34 ENGINE MECHANICAL (C24SE)
OPERATIONS ON CYLINDER HEAD AND CAMSHAFT
HOUSING
Camshaft




Removal
1. Remove cylinder head according to the corresponding
operation.
2. Remove camshaft housing from cylinder head and lay housing on base provided
3. Remove rear sealing gasket and plate camshaft housing with taking care not to damage housing.
4. Remove thrust plate.





5. Remove camshaft.
6. Remove front sealing gasket and plate from camshaft housing with taking care not to damage housing.

Inspection
All parts.








Installation
1. Install camshaft.
2. Coat sliding surfaces with molybdenum disulphate paste.

Tighten (Torque)
Thrust plate for camshaft housing - 8 N ⋅m (0.8 kgf ⋅m)


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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-35
Camshaft Housing, Removal and
Installation
Cylinder Head
Important!
Remove cylinder head only from cold engine (room
temperature).



Removal
1. Remove ground cable from battery.
2. Open radiator drain tap and collect coolant.
3. Remove air intake hose.
4. Remove all cable connections, hoses and lines to the cylinder head.
5. Remove accelerator cable on the throttle valve.
6. Remove V-belt for alternator.




7. Remove front toothed belt cover according to the
corresponding operation.
8. Bring piston of 1st cylinder to TDC and mark the position.
9. Remove camshaft housing cover.
10. Remove camshaft timing gear after releasing tension on toothed belt.


11. Remove upper bolts of rear toothed belt cover.
12. Remove exhaust pipe from exhaust manifold.
13. Remove cylinder head after loosening bolts from outside inwards (at first quarter turn then half turn) in a spiral
pattern.
14. Remove camshaft housing from cylinder head.
15. Remove rocker arm, pressure parts and hydraulic valve lifter adjuster.


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ISUZU KB P190 2007

6A-36 ENGINE MECHANICAL (C24SE)



















Clean
All sealing surfaces, drill holes in cylinder head bolts.

Check cylinder block and cylinder head for plane surface
according to the corresponding operations.

Installation
1. Install cylinder head sealing with marking "OBEN/TOP"
facing upwards and to right side of engine.
2. Install cylinder head on cylinder block.
3. Install hydraulic valve lash adjuster, pressure parts and rocker arm - molybdenum disulphate paste.
4. Install camshaft housing-Sealing Compound TB-1207C or equivalent.

Important!
Use new cylinder head bolts.
Screw in bolts until they rest on cover.




Torque - Angle Method
Cylinder head to cylinder block - 25 N ⋅m (2.5 kgf ⋅m)
Further turn angle 90 °+90 °+ 90 °.
Tighten cylinder head bolts from inside outwards. In four
stages in a spiral pattern.








5. Install rear toothed belt cover onto camshaft housing.
6. Install toothed belt and apply tension according to the corresponding operation.

Tighten (Torque)
Camshaft timing gear to camshaft - 45 N ⋅m (4.6 kgf ⋅m)




7. Install camshaft housing cover and front toothed belt
cover.
8. Install cable connections, all hoses and lines onto cylinder head.
9. Adjust accelerator cable for free of play.
10. Install V-belt according to the corresponding operation.
11. Install air intake hose.
12. Install front exhaust pipe.
13. Install ground cable onto battery.
14. Fill up cooling system and bleed according to the corresponding operation.

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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-47

Starter Ring Gear (Manual Transmission)
Removal
1. Remove flywheel according to the corresponding operation.
2. Drill starter ring gear underneath tooth gap approx. 8mm/0.30in. deep with 8mm/0.25in. diameter drill.




3. Separate starter ring gear with chisel on the drilling point.


Installation
1. Install starter ring gear with inner chamfered edge to flywheel.
2. Heat starter ring gear evenly to 180 °C /356 °F to 230 °C
/446 °F (yellow paint mark)
3. Install flywheel according to the corresponding operation.


Inspection
Lateral run-out of starter ring gear - max. 0.5mm/0.02in.


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ISUZU KB P190 2007

6A-48 ENGINE MECHANICAL (C24SE)
Seal Ring, Crankshaft
(Oil Pump Housing)

Removal
1. Remove toothed belt rear cover according to the
corresponding operation.
2. Remove sealing ring by making hole in middle of ring, turning in self-tapping screw and edging out.


Installation
1 Install the protective sleeve to the crankshaft.
2. Coat the sealing lip with protective grease.
3. Install the sealing ring.
4. Install the sealing ring using 5-8840-0455-0.
5. Install the rear toothed belt cover and toothed belt according to the corresponding operations.
6. Replace the sealing ring with a new one.
7. Tighten the belt to the crankshaft.




Seal Ring, Crankshaft Rear
Removal
1. Remove transmission and clutch.
2. Remove flywheel or flex plate according to the corresponding operations.
3. Make hole in middle of sealing ring, turn in self-tapping screw and edge out.




Installation
1. Install protective sleeve.
2. Coat sealing lip with Protective Grease.
3. Install sealing ring using 5-8840-0459-0 and 5-8840- 2597-0.
4. Install flywheel, clutch and transmission.


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ISUZU KB P190 2007

ENGINE MECHANICAL (C24SE) 6A-51
OPERATIONS ON CRANK DRIVE
Con-Rod Bearing









Removal
1. Remove oil pan and bearing bridge according to the corresponding operation.
2. Remove con-rod bearing cap and con-rod bearing after marking both sides.

Clean
Con-rod journal, con-rod bearing cap










Installation
1. Install new bearing shafts lightly coated with engine oil.
2. Install con-rod bearing cap.

Torque-Angle Method
Con-rod bearing cap to con-rod - 35N ⋅m (3.5 kgf ⋅m) +45 ° to
60 °

Important!
Use new bolts.

3. Install oil pan and bearing bridge according to the corresponding operation.




Piston with Con-Rod
Removal
1. Remove cylinder head and oil pan according to the corresponding operations.
2. Remove piston with con-rod after marking con-rod bearing cap.





Inspection
Remove and install all parts, if applicable.

Important!
Ring gap offset:
Piston rings - 180 °.
Oil scraper rings - 25 to 50 mm/1 to 2 in. from gap of
intermediate ring to the left and to the right.


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ISUZU KB P190 2007

6A-52 ENGINE MECHANICAL (C24SE)






Installation
1. Install piston with con-rod by inserting with engine oil.
2. Coat piston rings with engine oil and compress with piston ring compressor.

Important!
Installation position:
Arrow / notch on piston head on timing side of engine
Beads on con-rod on clutch side






Torque-Angle Method
Piston to cylinder block.
Con-rod bearing cap to con-rod-35N ⋅m (3.5 kgf ⋅m) +45 ° to 60 °

Important!
Use new bolts.


Installation
1. Install oil pan and cylinder head according to the corresponding operations.
2. Install sealing Gasket or replace if damaged.
3. Install camshaft housing to cylinder head.
4. Install cylinder head according to the corresponding operation.




Con-Rod
Removal
1. Remove piston with con-rod according to the corresponding operation.
2. Disassemble con-rod piston assembly by pressing out piston pin, using 5-8840-0468-0.


Installation
1. Slide guide drift (5-8840-0468-0) in horizontal position through piston and con-rod as far as side plate stops.
2. Tighten bolts evenly so that the piston rests flush on the rear plate.
3. Remove centre piece from guide drift and insert piston bolts (lubricated) into guide drift.


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ISUZU KB P190 2007