Severe Vibration; Engine Over-Heated - Xinchai 490B Series Manual

6.8 Severe Vibration

Cause of trouble
Great differences between
working conditions of different
cylinders such as bad atomization,
leakage and compression ratio
and so on
Water or air enters diesel fuel
Incorrect mounting of engine,
loose mounting fixing bolts
Knocking inside cylinder
Contact with Xinchai service
station

6.9 Engine over-heated

Cause of trouble
Inferior combustion due to over
loading, worn critical parts or
wrong adjustment
Faulty cooling system due to
damaged water pump, thermostat
or fan, heavy scale deposited in
engine water jacket or radiator,
broken cylinder head gaskets and
so on
Contact with Xinchai service
station
44
窑 窑
Remedies
Check and adjust the fuel delivery, repair the
nozzle, and check the compression ratio in each
Diesel fuel should be deposited; eliminate the air
Check and tighten fixing bolts
Check injection timing. Don't take load until engine
Remedies
Find out the cause of trouble; repair or re-adjust
Find out the cause of trouble respectively and deal
cylinder
gets warmed up
accordingly
with accordingly