TURBO CHARGER SYSTEM 6–3
What is the intercooler?
The inter-cooler cools down the com-
pressed air temperature to increase the
engine power by increasing the air density.
CAUTION
•
At low ambient temperature, or
when ever the vehicle has not been
used for a long period, normal
engine oil pressure and flow is af-
fected. Under these conditions the
engine should be started and al-
lowed to idle for a few minutes
before operating at a higher rpm.
•
Avoid long periods of engine
idling. The combination of low-
pressures in the turbine and com-
pressor may allow oil to seep past
the seal into the turbine or the
compressor.
•
The turbocharger may need to be
pre-oiled after oil change or any
service that involves oil draining.
Crank the engine a few times be-
fore allowing start, then start the
engine and allow it to idle for a
period to establish full oil circu-
lation and pressure before operat-
ing at higher rpm.
PREVENTIVE MAINTENANCE
The vehicle owner should be encouraged to
observe the following precautions to ensure
maximum turbocharger service life.
CAUTION
•
Operate the engine above idle only
after normal engine oil pressure
has been established.
Forcing the turbocharger to oper-
ate before the bearings are ad-
equately lubricated creates unnec-
essary friction.
•
Take steps to reduce temperature
and speeds from their maximum
before shutting down the engine.
The engine equipped with turbo-
charger develops much more heats
than normal engine, so when the
engine is stopped abruptly, the oil
in the bearings may evaporate due
to heats and can cause sticks.
•
Use only designated engine oil and
observe inspection and replace-
ment intervals.
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