Regal 53 SC Owner's Manual page 224

Turbocharger
COMPRESSOR HOUSING
AFTERCOOLER
TURBINE BLADES
CUMMINS 6.7 L TURBOCHARGER
The turbocharger uses large amounts of air so it is im-
portant that all intake ducting be free of debris for maxi-
mum engine air intake. The turbocharger as used on the
Cummins 6.7 L engine increases the engine's effi ciency
by forcing extra air into the combustion chamber. It is
a turbine-driven device. The main turbocharger system
components include the turbine, compressor and after-
cooler.
A turbocharger draws the engine exhaust gases into the
compressor where the air develops increased pressure be-
fore entering the intake manifold. All in all, more air en-
ters the cylinders on each intake stroke. An aftercooler is
used to cool down the intake air. The process allows the
engine to be much more effi cient than a natural aspirated
engine
Periodically inspect the turbocharger compressor im-
peller blades for damage. If the compressor impeller is
damaged, inspect the inlet piping and fi lter element for
damage. If damage is found replace the turbocharger be-
fore operating the engine.
Inspect the turbine wheel for damage.
Engine & Controls
CAUTION
!
TO AVOID POSSIBLE DAMAGE TO THE
TURBOCHARGER DUE TO THE LACK OF
BOOST PRESSURE, DO NOT OPERATE
THE ENGINE WITH THE CHARGE-AIR
PIPING REMOVED.
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