Isuzu KB P190. Manual - part 370

6A-120  ENGINE MECHANICAL (4JK1/4JJ1) 

Crankshaft Front Oil Seal 

Components 

 

 

 

 

RTW76AMF000501 

Legend 

 1. Bolt 

 2. Washer 

 

  3.  Crankshaft Damper Pulley 

  4.  Crankshaft Front Oil Seal 

 

Removal 

1.  Remove the fan assembly. 

•  Remove the fan assembly unscrewing four

mounting nuts. 

 

 

 

 

 

 
 

 

RTW56ASH025401

2.  Remove the fan belt. 

ENGINE MECHANICAL (4JK1/4JJ1)  6A-121 

3.  Remove the crankshaft pulley. 

Note: 
Do not reuse the bolt and the washer. 

 

 

 

 

 

 

 

 

LNW61ASH005301

4.  Remove the crankshaft front oil seal. 

•  Remove only the oil seal with a screwdriver or

the like, avoiding damage to the oil seal contact

surface on the front cover and the shaft. 

Installation 

1.  Install the crankshaft front oil seal. 

•  Use the special tool to install the front oil seal.
 

Front Oil Seal 

 

Installer: 5-8840-2821-0 (1) 

 

 

 

 

RTW56ASH016501

 

 

 

•  Apply engine oil to the lip of the oil seal. 
•  With the seal pressed in check the dimension 

of the oil seal section. 

 

Standard Dimension = 1.5 mm (0.06 in) 

 

 
 
 
 
 

 

RTW56ASH016601

2.  Install the crankshaft damper pulley. 

•  Install the crankshaft pulley aligning with the 

key on the crankshaft. 

•  Hold the flywheel ring gear stationary to prevent 

the crankshaft from turning when tightening the 

damper pulley bolt. 

Tightening torque: 294 N

⋅⋅⋅⋅m (30 kg⋅⋅⋅⋅m/217 lb ft) 

•  Take care not to damage the crankshaft 

damper pulley boss. 

 

 
 
 
 

 

 

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3.  Install the fan belt. 

•  Refer to “Engine Cooling” 
 

6A-122  ENGINE MECHANICAL (4JK1/4JJ1) 

Torque Specifications 

 

 

 

 

RTW76AMF000601 

Special Tools 

ILLUSTRATION 

PART NO. 

PART NAME 

 

 

 

 

5-8840-2821-0 

Oil seal installer 

 

 

 

 

ENGINE MECHANICAL (4JK1/4JJ1)  6A-123 

Crankshaft Rear Oil Seal 

Components 

  

 
 
 
 
 
 
 
 

 

 

RTW56ALF002501 

Legend 

  1.  Crankshaft Rear Oil Seal 

 2. Flywheel 

 3. Driven 

Plate 

 

  4.  Clutch Pressure Plate 

 5. Transmission 

Assembly