Mitsubishi L2E Service Manual

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Service Manual Mitsubishi L-Series diesel engines
Version 08/2004
TROUBLESHOOTING
ENGLISH
GENERAL
6.7 Low output
6.7.1 Matters to be checked before
diagnosis
1. Seizing of engine moving parts
2. Too high engine oil viscosity
3. Use of poor-quality fuel
4. Clogging of air cleaner element
5. Clogging of muffler
6. Malfunctioning of drive system
6.7.2 Diagnosis
Is sufficient fuel flow in fuel
line?
No Z
Engine without fuel feed pump:
Is gravitational flow of fuel
normal?
Engine with electromagnetic
fuel feed pump:
Does fuel pump feed fuel with
key switch placed in ON?
No Z
Inspect fuel filter, fuel pipe and
fuel tank.
V
V Yes Yes Z Inspect fuel pump.
Is engine adjusted properly?
(Check for valve clearance and injection timing.)
No Z Adjust engine.
V Yes
Do injection nozzles operate properly?
(Check for condition of fuel mist injection and injection starting pressure.)
No Z Inspect injection nozzles.
V Yes
Is cylinder compression proper? No Z
Inspect valves, cylinder head
gasket, pistons and piston
rings.
V Yes
Inspect injection pump.

Mitsubishi L2E Specifications

General

Engine Model	L2E
Number of Cylinders	2
Starting System	Electric starter
Lubrication System	Forced lubrication by trochoid pump
Cooling System	Water-cooled