Mitsubishi S12U User Manual

Chapter 9 TROUBLESHOOTING
9-2
Conditions Required for Proper Engine Operation
The following table shows the conditions required for proper engine operation, and the locations that affect
those conditions.
If any of the above conditions is not met, the engine can manifest problems such as output decrease, lack of
smoothness in operation, inability to run at low speed, excessive vibrations, and other general engine
problems.
Table 9-1 Conditions required for proper engine operation
Required condition Affecting locations
Complete compression of air
Affected by cylinder liners, pistons, piston rings,
exhaust valves, inlet valves, and their related parts
Appropriate quantity of fuel injected in proper spray
pattern and at correct timing
Affected by fuel injection pump, fuel injection noz-
zles, governor, and their related parts
Appropriate air volume
Affected by air cleaner, turbocharger, air cooler, and
their related parts
All bearings in good condition
Affected by bearing adjustment and engine lubricat-
ing system
Proper circulation of engine oil and coolant and
proper temperature control
Affected by engine oil circulated inside and outside
engine, coolant circulating parts, oil pump, water
pump, etc

Mitsubishi S12U Specifications

General

Brand	Mitsubishi
Model	S12U
Category	Engine
Language	English