D439E Service Manual 4. Fuel system
146
Sealant
Engine Coolant Temperature Sensor Three Bond 2310 or equivalent
Tightening Torque
Items N.m Kgf.m Ib.ft
Commeom rail installation 21.6~32.4 2.2~2.3 15.9~23.9
Engine Coolant Temperature sensor 29.4~39.2 3.0~4.0 21.6~28.9
Pipe (rall-injector 1/2/3/4) 39.2~49 4.0~5.0 29~36.2
Injector clamping bolt 30.4~34.3 3.1~3.5 22.4~25.3
Supply pump fixing bolt 18.6~27.5 1.9~2.8 13.7~20.3
TDC-bolt 7.9~11.8 0.8~1.2 5.8~8.7
CKP-bolt 7.9~11.8 0.8~1.2 7.9~11.8
Pipe (high pressure pump - rail) 39.2~49 4.0~5.0 29~36.2
Supply pump nut 58.8~68.7 6.0~7.0 43.4~50.6
Troubleshooting
Fuel Injection System
Troubles Possible causes Corrective actions
Poor tightening of supply pump nut.
Remove the supply pump and check
nut tightening.
Defective SCV of supply pump Replace
Low cranking speed
Repair the starter or charge or replace
battery.
Low voltage to glow plug system
If the test light turns on indicating low
voltage when it turns “ON”, check
relay and wiring
Defective glow plug Replace the glow plug
Air in the fuel system Air bleeding of fuel system
Injection pipe is connected
incompletely.
Connect the pipe correctly
Improper injection timing Check ECU
Poor injection Check, replace injector
Mechanical defect of engine Compression test, repair engine
Engine does not crank.
Simultaneous failures of TDC sensor
and CKP sensor
Check and tighten correctly Replace
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