Isuzu KB P190. Manual — part 215

ENGINE MECHANICAL 6A – 55

2. Loosen the crankshaft bearing cap bolts in numerical

order a little at a time.
If the crankshaft bearings are to be reinstalled, mark
their fitting positions by tagging each bearing with the
cylinder number from which it was removed.

29. Crankshaft Thrust Bearing

30.Crankshaft

31. Crankshaft Upper Bearing

If the crankshaft upper bearings are to be reinstalled, mark
their fitting positions by tagging each bearing with the
cylinder number from which it was removed.

32. Tappet

If the tappets are to be reinstalled, mark their fitting
positions by tagging each tappet with the cylinder number
from which it was removed.

33. Crankshaft Rear Oil Seal

• With the oil seal pushed in deep, install the special

tool as shown in the illustration and remove the oil
seal.
Oil Seal Remover: 5-8840-2360-0

34. Cylinder Body

015RY00003

015RY00004

015RY00005

015LV002

6A – 56 ENGINE MECHANICAL

MINOR COMPONENTS

ROCKER ARM SHAFT AND ROCKER ARM

Disassembly Steps

1.

Rocker arm shaft snap ring

5.

Rocker arm shaft spring

2.

Rocker arm

6.

Rocker arm shaft snap ring

3.

Rocker arm shaft bracket

7.

Rocker arm shaft

4.

Rocker

arm

Disassembly

1. Rocker Arm Shaft Snap Ring

2. Rocker

Arm

3. Rocker Arm Shaft Bracket

1. Use a pair of pliers to remove the snap rings.

2. Remove the rocker arms.

3. Remove the rocker arm shaft brackets.

If the rocker arms and rocker arm shaft brackets are to
be reinstalled, mark their installation positions by
tagging each rocker arm and rocker arm shaft bracket
with the cylinder number from which it was removed.

4. Rocker

Arm

5. Rocker Arm Shaft Spring

6. Rocker Arm Shaft Snap Ring

7. Rocker Arm Shaft

011RY00009

011RY00010

ENGINE MECHANICAL 6A – 57

CYLINDER HEAD

RTW46ALF001201

Disassembly Steps

1.

Intake manifold

6.

Intake and exhaust valve

2.

Intake manifold gasket

7.

Valve stem oil seal

3.

Split collar

8.

Valve spring lower seat

4.

Valve spring upper seat

9.

Cylinder head

5.

Valve spring

6A – 58 ENGINE MECHANICAL

Disassembly

1. Intake

Manifold

2. Intake Manifold Gasket

3. Split

Collar

1. Place the cylinder head on a flat wooden surface.

2. Use the spring compressor to remove the split collars.

Do not allow the valve to fall from the cylinder head.
Spring Compressor: 9-8523-1423-0

4. Valve Spring Upper Seat

5. Valve

Spring

6. Intake and Exhaust Valve

If the intake and exhaust valves are to be reinstalled, mark
their installation positions by tagging each valve with the
cylinder number from which it was removed.

If the intake and exhaust valves are to be replaced, the
valve guides must also be replaced.

7. Valve Stem Oil Seal

8. Valve Spring Lower Seat

9. Cylinder

Head

011RY00011

011LX022