Hard Starting - Mitsubishi Heavy Industries L2 Service Manual

TROUBLESHOOTING
Does preheating system
operate properly?
Yes
Does fuel feed pump, if provided operate when key switch is turned ON?
Yes
Does fuel flow in fuel line?
Yes
(Injection timing and valve timing)
Yes
Do injection nozzles operate properly?
State of fuel spray and injection starting pressure.
Yes
Is cylinder compression pressure proper?
Yes
Inspect injection pump.
32 / 155
Does current flow in glow plug
No circuit as soon as key switch is
Is electric wiring normal?
Does fuel flow out when fuel
No injection pump air vent screw is
Is engine in good order?
6.2

Hard starting

6.2.1 Matters to be checked before
diagnosis
1. Clogging of the air cleaner
2. Coagulation of engine oil
3. Use of poor-quality fuel
4. Lowering of cranking speed
6.2.2 Diagnosis
turned to 'H' (ON)?
Yes
loosened?
ENGLISH
Inspect key switch, wiring and
No
glow indicator.
Inspect glow plug.
Inspect fuel pump and/or
No
wiring.
Inspect fuel filter, fuel pipe and
No
fuel tank.
No Adjust engine properly.
No Inspect injection nozzles.
Inspect valves, pistons, piston
No rings and cylinder head
gasket.
Service Manual Mitsubishi L-Series diesel engines
GENERAL
Version 08/2004