Page 897 of 6020
6A – 92 E NGINE MECHANICAL
Oil Seal Installation
Use the special tool to install the front oil seal.
Front Oil Seal Installer: 5-8840-2361-0
1. With the oil seal attached to the sleeve, insert it into the front end section of the crankshaft.
2. With the oil seal end section attached securely to the crankshaft, tighten up the center bolt until the sleeve hits
the front end reference plane of the crankshaft securely.
3. Remove the sleeve.
4. With the seal pressed in, check the dimension of the oil seal section.
Standard Dimension = 1.0 ± 0.03mm
NOTE:
Install the oil seal after assembling the timing pulley
housing. The oil seal lip section is applied with oil.
Take notice of the press-in direction of the oil seal.
020R300005
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ISUZU KB P190 2007
Page 898 of 6020
ENGINE MECHANICAL 6A – 93
REASSEMBLY
INTERNAL PARTS
MINOR COMPONENT
ROCKER ARM SHAFT AND ROCKER ARM
020RY00029
Reassembly Steps
1.
Rocker arm shaft 5.
Rocker arm
2.
Rocker arm shaft snap ring 6.
Rocker arm shaft spring
3.
Rocker arm 7.
Rocker arm shaft snap ring
4.
Rocker arm shaft bracket
Reassembly
1. Rocker Arm Shaft
1. Position the rocker arm shaft with the large oil hole (4φ) facing the front of the engine.
2. Install the rocker arm shaft together with the rocker arm, the rocker arm shaft bracket, and the spring.
2. Rocker Arm Shaft Snap Ring
3. Rocker Arm
4. Rocker Arm Shaft Bracket
5. Rocker Arm
6. Rocker Arm Shaft Spring
7. Rocker Arm Shaft Snap Ring
014RY00037
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ISUZU KB P190 2007
Page 899 of 6020
6A – 94 ENGINE MECHANICAL
CYLINDER HEAD
RTW 46ALF001301
Reassembly Steps
1.
Cylinder head 6.
Valve spring upper seat
2.
Valve spring lower seat 7.
Split collar
3.
Valve stem oil seal 8.
Intake manifold gasket
4. Intake and exhaust valve 9. Intake manifold
5.
Valve spring
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ISUZU KB P190 2007
Page 900 of 6020

ENGINE MECHANICAL 6A – 95
Reassembly
1. Cylinder Head
2. Valve Spring Lower Seat
3. Valve Stem Oil Seal
1. Apply a coat of engine oil to the oil seal inner face.
2. Use an oil seal installer to install the oil seal to the valve guide.
Oil Seal Installer: 5-8840-2033-0
4. Intake and Exhaust Valve
1. Apply a coat of engine oil to each valve stem before installation.
2. Install the intake and exhaust valves.
3. Turn the cylinder head up to install the valve springs.Take care not to allow the installed valves to
fall free.
5. Valve Spring
Install the valve spring with their fine pitched end (painted)
facing down.
6. Valve Spring Upper Seat
7. Split Collar
1. Use the spring compressor to compress the valve spring into position.
Spring Compressor: 9-8523-1423-0
2. Install the split collars to the valve stem.
3. Set the split collars by tapping around the head of the collar with a rubber hammer.
RTW 46ASH002301
8. Intake manifold gasket
9. Intake manifold
1. Install the manifold gasket with the end having the sharp corners facing the rear of the engine.
2. Install the intake manifold to the cylinder head.
3. Tighten the manifold bolt/nuts to the specified torque.
Manifold Bolt/Nut Torque N·m(kg·m/lbft)
Bolt 19 (1.9/14)
Nut 24 (2.4/17)
011RW 027
011LX055
014RY00039
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ISUZU KB P190 2007
Page 901 of 6020
6A – 96 ENGINE MECHANICAL
PISTON AND CONNECTING ROD
RTW 46ALF000301
Reassembly Steps
1.
Piston 5.
Piston pin snap ring
2.
Connecting rod 6.
Piston ring
3.
Piston pin snap ring 7.
Connecting rod bearing
4.
Piston pin
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ISUZU KB P190 2007
Page 902 of 6020
ENGINE MECHANICAL 6A – 97
Reassembly
1. Piston
2. Connecting Rod
1. Clamp the connecting rod in a vise.Take care not to damage the connecting rod.
2. Use a pair of pliers to install the piston pin snap ring to the piston.
RTW 36ASH001801
Install the piston to the connecting rod so that the piston
head front mark (1) and the connecting rod mark (2) are
facing in the same direction.
3. Piston Pin Snap Ring
RTW 36ASH001901
4. Piston Pin
1. Apply a coat of engine oil to the piston pin and the piston pin hole.
2. Use your fingers to force the piston pin into the piston until it makes contact with the snap ring.
5. Piston Pin Snap Ring 1. Use your fingers to force the piston pin snap ring into the piston snap ring groove.
2. Check that the connecting rod moves smoothly on the piston pin.
F06MV015
015R100001
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ISUZU KB P190 2007
Page 903 of 6020
6A – 98 ENGINE MECHANICAL
RTW 36ASH002001
6. Piston Ring
1. Use a piston ring replacer to install the three piston rings.
Piston Ring Replacer
Install the piston rings in the order shown in the
illustration.
1. Oil ring
2. 2nd compression ring
3. 1st compression ring
NOTE:
Install the compression rings with the stamped side
facing up.
Insert the expander coil into the oil ring groove so that
there is no gap on either side of the expander coil
before installing the oil ring.
2. Apply engine oil to the piston ring surfaces.
3. Check that the piston rings rotate smoothly in the piston ring grooves
7. Connecting Rod Bearing
Carefully wipe any oil or other foreign material from the
connecting rod bearing back face and the connecting rod
bearing fitting surface.
015R100006
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ISUZU KB P190 2007
Page 904 of 6020
ENGINE MECHANICAL 6A – 99
POSITIVE CRANKCASE VENTILATION (PCV) VALVE
RTW 46AMF000101
Reassembly Steps
1.
Positive Crankcase Ventilation
(PCV) Valve 5.
Fixing bolt
2.
Rubber space 6.
Oil filler cap
3.
Cylinder head insulator cover
4.
Breather pipe
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ISUZU KB P190 2007