Unsteady Idling - Mitsubishi Heavy Industries L2 Service Manual

TROUBLESHOOTING
(Check for idling speed, valve clearance, and injection timing.)
Yes
Do injection nozzles operate properly?
(Check for shape of fuel spray and injection starting pressure.)
Yes
Is cylinder compression pressure proper?
(Check equality between cylinders.)
Yes
Inspect injection pump and
governor system.
36 / 155
Is engine adjusted properly?
6.6

Unsteady idling

6.6.1 Matters to be checked before
diagnosis
1. Faulty engine control system
2. Too high viscosity of engine oil
3. Use of poor-quality fuel
6.6.2 Diagnosis
ENGLISH
No Adjust engine.
No Inspect injection nozzles.
Inspect valves, pistons and
No
piston rings.
Service Manual Mitsubishi L-Series diesel engines
GENERAL
Version 08/2004