2004 ISUZU TF SERIES Workshop Manual

Page 1321 of 4264

ISUZU TF SERIES 2004  Workshop Manual FUEL SYSTEM    6C – 21 
  
 
  020L200017 
  
 
  RTW46CSH000201  
18. Timing Check Hole Cover 
1)  Remove the timing check hole cover. 
2)  For ease in reinstalling the injection pump, align the 
t

Page 1322 of 4264

ISUZU TF SERIES 2004  Workshop Manual 6C – 22   FUEL SYSTEM 
  
 
  RTW46CSH000201 
Installation
1. Injection Pump 
1)  Install the injection pump gear (When gear is 
removed). 
Injection Pump Gear Nut  N
m (kg
m/lb ft)
64 (6.5 / 47

Page 1323 of 4264

ISUZU TF SERIES 2004  Workshop Manual FUEL SYSTEM    6C – 23 
  
 
 
4JA1T (L) 
 RTW46CSH000101  
 
  
 
 
 
4JA1TC/4JH1TC 
 RTW36AMH000101  
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
2. Injection Pump Bracket 
1)  Install the injection pump

Page 1324 of 4264

ISUZU TF SERIES 2004  Workshop Manual 6C – 24   FUEL SYSTEM 
  
 
 
 
 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 (3.0

Page 1325 of 4264

ISUZU TF SERIES 2004  Workshop Manual FUEL SYSTEM    6C – 25 
 
 
 
 
 
 
 
 13. Throttle Position Sensor Harness Connector 
(4JA1TC/4JH1TC only) 
Reconnect the harness connector to the throttle position 
sensor. 
14. Power Steering Pum

Page 1326 of 4264

ISUZU TF SERIES 2004  Workshop Manual 6C – 26   FUEL SYSTEM 
INJECTION NOZZLE (4JA1L) 
 DISASSEMBLY 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
080L200009 
 
 
Disassembly Steps     
   1. 
Retaining nut      9. 
Collar 
   2. 
Nozzle & pi

Page 1327 of 4264

ISUZU TF SERIES 2004  Workshop Manual FUEL SYSTEM    6C – 27 
 REASSEMBLY 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
 
080L200010 
 
 
Reassembly Steps     
   1. 
Nozzle holder body      9. 
Spring seat 
  2. 
Shim (First opening pressure

Page 1328 of 4264

ISUZU TF SERIES 2004  Workshop Manual 6C – 28   FUEL SYSTEM 
 
REASSEMBLY AND ADJUSTMENT PROCEDURE  
1 
First nozzle opening pressure adjustment   Adjust the first nozzle opening pressure using the shim. 
    
2 
Full needle valve lift