4.
Remove the high pressure fuel pipe (C) connecting the common rail with the high pressure fuel pump.
high pressure fuel pipe installation nut :
24.5 ~ 28.4 N.m (2.5 ~ 2.9 kgf.m, 18.1 ~ 20.1 lb-ft)
Common Rail Fuel Injection System operates with extremely high pressure [approximately 1,800 bar (180 MPa / 26,106 psi)], so never perform any work on injection system with engine running or within 30 seconds after the engine stops.
Keep cleanly the parts and the working area.
Pay attention to a foreign substance.
Just before installing injector, tube or hose, remove the protect-cap attached on them.
Do not remove injector except for special case.
When installing Injector
- Wash the contact area of the injector and replace the O-ring with a new one.
- Spread oil on the injector O-ring.
- To protect damage caused by shock, vertically insert the injector into the cylinder head.
When installing High Pressure Fuel Pipe
- Do not use again the used high pressure fuel pipe.
Turn ignition switch OFF and disconnect the regative (-) battery cable.
Disconnect the rail pressure sensor connector (A).
Disconnect the return hose (B) from the common rail.
Remove the high pressure fuel pipe (C) connecting the common rail with the high pressure fuel pump.
high pressure fuel pipe installation nut :
24.5 ~ 28.4 N.m (2.5 ~ 2.9 kgf.m, 18.1 ~ 20.1 lb-ft)
Remove the intake manifold.
<a href="content.asp?vehicletype=Passenger&mfrcode=KM&area=KME&langcode=ENG&modelid=JD12&modelyr=2013&mmctype=en&mmcid=349&group=SHOP&pdftype=&cat1=2013+%3E+D+1%2E4+TCI%2DU2&ec=&firstnodedesc=Engine+Mechanical+System&sitinfolist=12%5E1235%5E12350300%5Enone%5E801%5E1%5EENG%5EKM%5EJD12%5E2013%5Een%5E348%5Enone%5Enone%5Enone%5ESHOP%5E%24" target="_blank">(Refer to Engine Mechanical System - "Intake Manifold")</a>
Remove the high pressure fuel pipe (A) connecting the injectors with the common rail.
Unscrew the two mounting bolts (B) and remove the common rail.
Common rail installation bolt:
14.7 ~ 21.6 N.m (1.5 ~ 2.2 kgf.m, 10.9 ~ 15.9 lb-ft)
High pressure fuel pipe installation nut:
24.5 ~ 28.4 N.m (2.5 ~ 2.9 kgf.m, 18.1 ~ 20.1 lb-ft)
Installation is reverse of removal.
When installing the high pressure fuel pipe, apply the specified tightening torques with the special service tool (SST No.:09314-27120).
After removing or replacing the part below, bleed air in low pressure fuel circuit.
(Refer to Fuel Delivery System - "Bleeding Air in Low Pressure Fuel Circuit")
Fuel tank
Fuel sender
Fuel filter
High pressure fuel pump
Low pressure fuel lines
After removing or replacing fuel system below, must perform fuel leakage test procedure.
(Refer to Fuel Delivery System - "Fuel Leakage Test")
Fuel tank
Fuel sender
Fuel filter
High pressure fuel pump
Injector
Common rail
Low pressure fuel line
