2007 ISUZU KB P190 Workshop Repair Manual

Page 1441 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL (4JK1/4JJ1)  6A-81 
54. Remove the cylinder head assembly. 
•  Loosen the cylinder head bolts in the order 
described in the drawing. 
•   Remove the cylinder head gasket. 
Note:

Page 1442 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A-82  ENGINE MECHANICAL (4JK1/4JJ1) 
10. Remove the intake and exhaust valve. 
•  Sort the removed valves according to cylinders
by using tags others. 
 
  
 
 
 
 
 
LNW 21BSH016801
11. Remove the

Page 1443 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL (4JK1/4JJ1)  6A-83 
Inspection 
Make the necessary adjustments, repairs, and part  
replacements if excessive wear or damage is 
discovered during inspection. 
Cylinder Head Lower Fa

Page 1444 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A-84  ENGINE MECHANICAL (4JK1/4JJ1) 
 
Manifold Fitting Face W arpage  mm (in)
Standard 0.05 (0.002) or less
Limit 0.20  (0.008) 
Maximum Grinding Allowance  0.40 (0.016) 
  
 
 
    
 
 
 
 
 
RTW 5

Page 1445 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL (4JK1/4JJ1)  6A-85 
   
 
 
 
011RY00023
Valve Thickness 
Measure the valve thickness.  
If the measured value is less than the specified limit, the 
valve and the valve guide must b

Page 1446 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A-86  ENGINE MECHANICAL (4JK1/4JJ1) 
   
 
 
  
 
 
014RY00027
Repair of the seat surface 
•   Remove carbon from the surface of the valve
insert seat. 
•   Use a seat cutter to minimize the scra

Page 1447 of 6020

ISUZU KB P190 2007  Workshop Repair Manual ENGINE MECHANICAL (4JK1/4JJ1)  6A-87 
Remove the valve seat insert 
•  Arc-weld the entire inner diameter of the valve seat
insert. 
•   Cool the valve seat insert for two to three minutes.
Contra

Page 1448 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6A-88  ENGINE MECHANICAL (4JK1/4JJ1) 
   
 
 
 
 
RTW 56ASH009101
Legend  
 1. Cylinder Head  
  2.  Oil Seal Installer  
 
2.  Install the valve guide. 
•  Hammer in the valve guide from the uppe
r