2007 ISUZU KB P190 Workshop Repair Manual

Page 985 of 6020

ISUZU KB P190 2007  Workshop Repair Manual FUEL SYSTEM    6C – 21 
   
 
 
RTW 46CSH000201 
Installation   
1. Injection Pump 
1)  Install the injection pump gear (W hen gear is removed). 
Injection Pump Gear Nut  N⋅m (kg ⋅m/lb ft)
64 (6

Page 986 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6C – 22   FUEL SYSTEM 
   
 
 
4JA1T (L) 
RTW 46CSH000101   
 
 
 
 
 
 
4JA1TC/4JH1TC 
RTW 36AMH000101    
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2.  Injection Pump Bracket 
1)  Install the injection

Page 987 of 6020

ISUZU KB P190 2007  Workshop Repair Manual FUEL SYSTEM    6C – 23 
   
 
 
 
 6. Injection Pipe 
Install the injection pipe.  
Injection Pipe Torque   N·m(kg·m / lb ft)
29 (3.0 / 22) 
Nozzle Side (4JA1TC/4JH1TC)   N·m(kg·m / lb ft)
29 (3

Page 988 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6C – 24   FUEL SYSTEM 
  
 
 
 
 
 
 
 13. Throttle Position Sensor Harness Connector 
(4JA1TC/4JH1TC only)  
Reconnect the harness connector to the throttle position  
sensor. 
14. Power Steering P

Page 989 of 6020

ISUZU KB P190 2007  Workshop Repair Manual FUEL SYSTEM    6C – 25 
INJECTION NOZZLE (4JA1L) 
 DISASSEMBLY 
 
 RTW 76CMF000401 
  
Disassembly Steps   
   1. Retaining nut    2.  Nozzle & pin  
  3.  Spacer & pin 
 4. Lift Piece 
 5. Spring s

Page 990 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6C – 26   FUEL SYSTEM 
 REASSEMBLY 
 
 RTW 76CMF000501 
 
 
Reassembly Steps   
    1.  Nozzle holder body    2.  Shim (First opening pressure  adjustment) 
 3. First spring  
 4. Spring seat 
 5. C

Page 991 of 6020

ISUZU KB P190 2007  Workshop Repair Manual FUEL SYSTEM    6C – 27 
 
REASSEMBLY AND ADJUSTMENT PROCEDURE  
1 First nozzle opening pressure adjustment    Adjust the first nozzle opening pressure using the shim. 
    
2 
Full needle valve lift

Page 992 of 6020

ISUZU KB P190 2007  Workshop Repair Manual 6C – 28   FUEL SYSTEM 
 
Injection Nozzle Adjustment 
First nozzle opening pressure adjustment 
1.Clamp the nozzle holder in a vise. 
 
   2.  Install the shim, first spring and spring seat in the