Fuel Injector: Service and Repair
Fuel Injector Assy:
REPLACEMENT
1. WORK FOR PREVENTING GASOLINE FROM SPILLING OUT
2. REMOVE V-BANK COVER [11259]
a. Remove the V-bank cover by removing the 2 nuts.
3. REMOVE AIR CLEANER INLET NO.1 [17751]
4. REMOVE INTAKE AIR CONNECTOR PIPE [17875]
a. Disconnect the air hose and ventilation hose No.1.
b. Remove the intake air connector pipe by removing the bolt and hose clamp.
5. REMOVE V-BANK COVER BRACKET NO.1 [11254]
6. REMOVE V-BANK COVER BRACKET NO.2 [11256]
7. REMOVE V-BANK COVER BRACKET NO.3 [11257]
8. REMOVE V-BANK COVER FASTENER [11258A]
9. REMOVE VACUUM SWITCHING VALVE ASSY [17650]
10. SEPARATE ENGINE WIRE
11. REMOVE FUEL PRESSURE PULSATION DAMPER ASSY [23270]
a. Disconnect the fuel delivery pipe and the fuel pipe by removing the both of right and left pulsation dampers.
b. Remove the gasket.
12. REMOVE FUEL DELIVERY PIPE SUB-ASSY [23807]
a. Remove the installation bolts of the water bypass pipe No.1 and No.2.
b. Disconnect the connector.
c. Remove the 2 bolts, then the fuel delivery pipe No.1 by pulling it straight upward holding the both ends.
13. FUEL DELIVERY PIPE SUB-ASSY NO.2 [23808]
a. Disconnect the connector.
b. Remove the 2 bolts, then the fuel delivery pipe No.2 by pulling it straight upward holding the both ends.
14. REMOVE FUEL INJECTOR ASSY [23250]
a. Remove the injector from the intake manifold.
NOTE: Do not put any force to the injector in the horizontal direction, because the O-ring might be stuck.
b. Remove the O-ring, grommet and vibration insulator from the injector.
15. INSTALL FUEL INJECTOR ASSY [23250]
a. Install a new grommet and vibration insulator to the injector.
b. Check that there is no foreign object stuck nor damage in the groove of the O-ring of the injector. Apply some gasoline to new O-ring, and install it to the injector.
c. Install the injector to the delivery pipe, rotating the injector both ways.
d. Check that the injector can rotate smoothly.
NOTE: When the injector cannot rotate smoothly, the O-ring might engage with something. In case of that, the operation should be started after the injector has been removed then the O-ring has been replaced with a new one once again.
16. INSTALL FUEL DELIVERY PIPE SUB-ASSY NO.2 [23808]
a. Install the injector with delivery pipe to the intake manifold.
b. Under the above condition, turn the injector both ways by approximately 45 degrees.
c. Inserting a spacer in between, install the delivery pipe with injector by 2 bolts.
Torque: 21 N.m (204 kgf.cm, 14 ft.lbf)
17. INSTALL FUEL DELIVERY PIPE SUB-ASSY [23807]
a. Install the injector with delivery pipe to the intake manifold.
b. Under the above condition, turn the injector both ways by approximately 45 degrees.
c. Inserting a spacer in between, install the delivery pipe with injector by 2 bolts.
Torque: 21 N.m (204 kgf.cm, 14 ft.lbf)
18. INSTALL FUEL PRESSURE PULSATION DAMPER ASSY [23270]
a. Inserting 2 new gaskets in between, install the fuel main hose the fuel pressure pulsation damper.
Torque: 39 N.m (400 kgf.cm, 29 ft.lbf)
19. INSTALL ENGINE WIRE
20. INSTALL VACUUM SWITCHING VALVE ASSY [17650]
Torque: 7.5 N.m (80 kgf.cm, 66 in.lbf)
21. INSTALL V-BANK COVER FASTENER [11258A]
Torque: 7.5 N.m (80 kgf.cm,66 in.lbf)
22. INSTALL V-BANK COVER BRACKET NO.3 [11257]
Torque: 7.5 N.m (80 kgf.cm, 66 in.lbf)
23. INSTALL V-BANK COVER BRACKET NO.2 [11256]
Torque: 7.5 N.m (80 kgf.cm, 66 in.lbf)
24. INSTALL V-BANK COVER BRACKET NO.1 [11254]
Torque: 7.5 N.m (80 kgf.cm, 66 in.lbf)
25. INSTALL INTAKE AIR CONNECTOR PIPE [17875]
a. Install the intake air connector pipe with the bolt and the hose clamp.
Torque:
4 N.m (40 kgf.cm, 35 in.lbf) (hose clamp)
5 N.m (50 kgf.cm, 44 in.lbf) (bolt)
b. Connect the air hose and the ventilation hose NO.1 together.
26. INSTALL AIR CLEANER INLET NO.1 [17751]
27. INSPECT FUEL LEAK
28. INSTALL V-BANK COVER [11259]
Torque: 5 N.m (50 kgf.cm, 44 in.lbf)