Nanni N16.1000 CR3, Operator'S Manual

Page: 63 / 119

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TURBOCHARGER
CAUTION !
A turbocharger is an exhaust-driven mechanical device
that boost engine power by pumping more air into the
engine. A turbocharger uses a pair of fan-like castings
mounted on a common shaft. One (called the turbine) is
piped to the exhaust, while the other (the compressor) is
piped to the engine intake. The flow of exhaust spins the
turbine, which causes the compressor to turn. The com-
pressor serves to blow air into the engine at a greater
rate than it can pull it in on its own. The greater volume
of air can be mixed with a greater volume of fuel, which
increases the power output.
Principle of operation of a turbocharger.
TURBOSERVICE
Engine turbochargers are designed to provide
long years of trouble free service, which if re-
quired, can only be performed by a specialized
workshop. In view to maintain turbochargers
performances for as long as possible, some
basic rules must be followed.
Changing or cleaning the air filters on a regular basis is
a good way to keep debris from causing problems with
the intake side of turbochargers.
A turbocharged engine will definitely need more oil
changes than an ordinary atmospheric one, as the tur-
bines axle requires excellent lubrication. For this reason,
oil characteristics must be followed closely. Never use
low grade bargain lubrication oil.
Turbochargers get very hot when engine is running and
a protective metal shield or thermal sleeve is always af-
fixed onto the exhaust side to prevent burns. Never re -
move these shields.
Do not get confused : a turbocharger is driven by ex-
haust gases. On a supercharger, the air intake turbine is
driven by a belt. In addition to a rotation speed far lower
compared to a turbocharger, an amount of output power
is subtracted fom the engine because of the drive sys-
tem.
There is no serviceable part for the end user
inside turbochargers. Any attempt to disas-
sembling would lead to a total failure.
S08 MAINTENANCE