2007 ISUZU KB P190 oil

6A – 104 ENGINE MECHANICAL



Reassembly
1. Cylinder Body
Use compressed air to thoroughly clean the inside and
outside surfaces of the cylinder body, the oil holes, and the
water jackets.








2. Tappet
1. Apply a coat of engine oil to the tappet and the cylinder body tappet insert holes.
2. Locate the position mark applied at disassembly (if the tappet is to be reused).

NOTE:
The tappet must be installed before the camshaft
installation.





3. Crankshaft Upper Bearing
The crankshaft upper bearings have an oil hole and an oil
groove. The lower bearings do not.
1. Carefully wipe any foreign material from the upper bearing.

NOTE:
Do not apply engine oil to the bearing back faces and
the cylinder body bearing fitting surfaces.
2. Locate the position mark applied at disassembly if the removed upper bearings are to be reused.




4. Crankshaft
Apply an ample coat of engine oil to the crankshaft journals
and the crankshaft bearing surfaces before installing the
crankshaft.


015R100004 015R100003
014LX088
015LX125

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ENGINE MECHANICAL 6A – 105






5. Crankshaft Thrust Bearing
Apply an ample coat of engine oil to the thrust bearings
before installation.
Install the thrust bearings to the crankshaft center journal.
The thrust bearing oil grooves must be facing the sliding
faces.
















6. Crankshaft Bearing Cap With Lower Bearing
Before the crankshaft bearing installation, select the
appropriate bearings in accordance with the description in
CRANK BEARING SELECTION of INSPECTION AND
REPAIR.
1. Apply the recommended liquid gasket or its equivalent to the No. 5 crankshaft bearing cap cylinder body fitting
surfaces at the points shown in the illustration.
NOTE:
Be sure that the bearing cap fitting surface is
completely free of oil before applying the liquid
gasket. Three bond 1207B Do not allow the liquid
gasket to obstruct the cylinder thread holes and
bearings.
ThreeBond 1207B is a fast-drying liquid gasket.
Tighten the bearing caps immediately after applying
the gasket.









2. Install the bearing caps with the bearing cap head
arrow mark facing the front of the engine.The bearing
cap numbers must be facing up.
3. Apply engine oil to the crankshaft bearing cap bolts.















4. Tighten the crankshaft bearing cap bolts to the
specified torque a little at time in the sequence shown
in the illustration.

Crankshaft Bearing Cap Torque N·m(kg·m/lbft)
167 (17/123)
5. Check to see the crankshaft turns smoothly by rotating it manually.


015LX115
015LX127
015LX128
015LX129

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

6A – 106 ENGINE MECHANICAL


7. Camshaft
1. Apply a coat of engine oil to the camshaft and the camshaft bearings.
2. Install the camshaft to the cylinder body. Take care not to damage the camshaft bearings.











8. Timing Gear Case
Tighten the timing gear case with timing gear case gasket
to the specified torque.

Timing Gear Case Bolt Torque N·m(kg·m/lbft)
19 (1.9/14)











9. Camshaft Thrust Plate
Install the thrust plate to the cylinder body and tighten the
thrust plate bolts to the specified torque.

Thrust Plate Bolt Torque N·m(kg·m/lbft)
19 (1.9/14)




RTW 36ASH000901








10. Camshaft Timing Gear
1. Install the camshaft timing gear to the camshaft. The timing gear mark must be facing outward.
2. Tighten the timing gear to the specified torque.


Timing Gear Bolt Torque N·m(kg·m/lbft)
110 (11.2/82)
014RY00019
020R300003
020RY00032

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ENGINE MECHANICAL 6A – 107


RTW 36ASH002001




11. Piston and Connecting Rod with Upper Bearing
12. Connecting Rod Bearing Cap with Lower Bearing
1. Apply a coat of engine oil to the circumference of each piston ring and piston.
2. Position the piston ring gaps as shown in the illustration.
1. Oil ring
2. 2nd compression ring
3. 1st compression ring










3. Apply a coat of molybdenum disulfide grease to the two
piston skirts.
This will facilitate smooth break-in when the engine is
first started after reassembly.
4. Apply a coat of engine oil to the upper bearing surfaces.
5. Apply a coat of engine oil to the cylinder wall.














6. Position the piston head front mark so that it is facing
the front of the engine.
7. Use the piston ring compressor to compress the piston rings.
Piston Ring Compressor: 5-8840-9018-0
8. Use a hammer grip to push the piston in until the connecting rod makes contact with the crankpin.
At the same time, rotate the crankshaft until the
crankpin is at BDC.



9. Align the bearing cap cylinder number marks and the connecting rod cylinder number marks.
The cylinder number marks must be turned toward the
exhaust manifold.



015LX096
015R100007 015R100006

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

6A – 108 ENGINE MECHANICAL











10. Apply a coat of engine oil to the threads and setting
faces of each connecting rod cap bolt.
11. Tighten the connecting rod caps to the two step of anglar tigthen method.

Connecting Rod Bearing Cap Bolt Torque N·m (kg·m/Ib ft) 4JA1T (L), 4JA1TC 78-88 (8.0/57 – 9.0/65)
1st step; 29.0–29.2 (3.00/22.0–3.01/22.2) 4JH1TC
2nd step; 45°-60 °






13. Piston Cooling Oil Jet
1. Install the piston cooling oil jet to the cylinder body.
2. Tighten the oil jet bolts and relief valve to the specified torque.

Oil Jet Bolt Torque N·m(kg·m/lb ft)
M8 × 1.25 19 (1.9/14)
M6
× 1.00 8 (0.8/6)


Relief Valve Torque N·m(kg·m/lb ft)
29 (3.0/22)
NOTE:
Check that there is no interference between the piston
and the oiling jet by slowly rotating the crankshaft.
















14. Oil Pump with Oil Pipe Apply a coat of the molybdenum disul fide and engine oil
enough on the pinion gear.
Install the oil pump with the oil pipe and tighten the bolts to
the specified torque.

Oil Pump Bolt Torque N·m(kg·m/lb ft)
19 (19/14)
NOTE:
Take care not to damage the O-rings when tightening
the oil pipe bolts.







15. Crankshaft Rear Oil Seal
Use a oil seal install to install the crankshaft rear oil seal.
Oil Seal Installer: 5-8840-2359-0


015LX130
015LX112
052LX010
051R100004

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ENGINE MECHANICAL 6A – 109



16. Crank Case
1. Apply the recommended liquid gasket (Three bond 1207B) or its equivalent to arch gasket fitting surface
as shown in the illustration.
2. Install the crankcase front gasket (1) to the timing gear case arches.
The gasket projection (2) must be facing forward.
NOTE:
ThreeBond 1207B is a fast-drying liquid gasket.
Install the arch packing to the crankcase immediately
aftter applying the gasket.










3. Install the rear arch gasket (2) to the No. 5 bearing
cap. Use your fingers to push the arch gasket into the
bearing cap groove.Take care not to scratch the arch
gasket outer surface.
Also apply the recommended liquid gasket (1207C) or
its equivalent to arch gasket fitting area as indicated in
the illustration.






4. Apply the recommended liquid gasket or its equivalent to groove of the crankcase fitting surface as shown in
the illustration.

NOTE:
Be sure that the crank case fitting surface is
completely free of oil and dust before applying the
liquid gasket.












5. Install the crank case to the cylinder body.
6. Tighten the crank case bolts to the specified torque a little at a time in the sequence shown in the illustration.

Crank Case Bolt Torque N·m(kg·m/lbft)
19 (1.9/14)

013LV003
013RW 012
013RW 011
013R100001

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

6A – 110 ENGINE MECHANICAL









17. Cylinder Body Rear Plate
1. Align the rear plate with the cylinder body knock pins.
2. Tighten the rear plate to the specified torque.

Rear Plate Torque N·m(kg·m/lbft)
82 (8.4/61)














18. Flywheel
1. Apply a coat of engine oil to the threads of the flywheel bolts.
2. Align the flywheel with the crankshaft dowel pin.
3. Tighten the flywheel bolts in the numerical order shown in the illustration.
Gear stoper: 5-8840-0214-0

Flywheel Bolt Torque N·m(kg·m/lbft)
118 (12/87)











19. Crankshaft Timing Gear
Use the crankshaft timing gear installer (1) to install the
crankshaft timing gear (2).
The crankshaft timing gear setting mark must be facing
outward.
Crankshaft Timing Gear Installer: 9-8522-0020-0


















20. Idler Gear Shaft
21. Idler Gear "A"
1. Turn the crankshaft clockwise to set the DTC of the No.1 piston.
2. Apply engine oil to the idler gear and the idler gear shaft.
The idler gear shaft oil hole (A) must be facing up.
3. Position the idler gear setting marks so that they are facing the front of the engine.


015LX113
020R100001
020RY00034
020RY00035

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007

ENGINE MECHANICAL 6A – 111
























4. Align the idler gear setting mark with the crankshaft
timing gear (1) setting mark.
5. Align the idler gear setting mark with the camshaft timing gear (2) setting mark.
6. Install the thrust collar and bolts to the cylinder body through the shaft.
The thrust collar oil hole must be facing up, and the
thrust collar chamfered must be outward.
7. Tighten the idler gear bolt to the specified torque.

Idler Gear "A" Bolt Torque N·m(kg·m/lbft)
30 (3.1/22)

020R300006











22. Idler Gear "B" and Shaft
1. Apply engine oil to the idler gear and the idler gear shaft.
2.
Align the idler gear "B" (3) setting mark with the idler
gear "A" (4) setting mark.
3. Tighten the idler gear bolt to the specified torque.
4. Be sure to remove the lock bolt (5) from idle gear “B”.


Idler Gear "B" Bolt Torque N·m(kg·m/lbft)
76 (7.7/56)




020L200019
5. If the idle gear "B" is disassembled, reassemble in the
following procedure.
1) Drive pins into the main gear, the front gear, and the rear gear.





020L200007
2) Install the main gear bearing from the front side of
the main gear (the side with the groove).
3) Place the main gear in a vise with copper plate so that the rear side of the main gear facing up.
020RY00036

BACK TO CHAPTER INDEX
TO MODEL INDEX
ISUZU KB P190 2007