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1.05L REVOTORQ ENGINE
15
Checks On The Turbocharger:
Remove air inlet and exhaust outlet
connections from the turbocharger.
Inspect both the wheels for probable blade
damage caused by foreign material. The
compressor wheel can be inspected through
the compressor housing inlet opening. Turbine
wheel blade tips can be examined from the
exhaust outlet end of the turbine housing (you
have to look between the turbine wheel blades
at the gas entry area).
Examine the blade outer edges on both the
wheels, adjacent to their respective housing
bores, and check for wheel rub.
Rotate the shaft wheel assembly by hand and
feel for drag or binding conditions. Push shaft
to side and rotate to feel for rub. It should turn
smoothly.
Lift both ends of the shaft up and down at the
same time and feel for excessive journal
bearing clearance. If clearance is normal, very
little shaft movement will be detected.
If the shaft assembly rotates freely and no
wheel damage, binding or rub has been noted,
it can be assumed that the turbocharger can
be reused.
If the turbocharger parts are damaged, wheels
have rubbed / damaged, the shaft is not freely
rotating, please contact TEL authorized service
center.
Needs of A Turbocharger:
Clean Engine Oil.
Clean Air from the Air Filter.
Why A Turbocharger Needs Them
The clearances between the rotor and the
journal are extremely small and the parts are
machined to very close tolerances.
Turbocharger rotor-assembly rotates at
extremely high speeds.
Turbocharger uses fully floating journals and
will rotate at less than half the speed of the
rotor.
The turbocharger components are balanced to
very fine balancing limits.
The air / gas entering the compressor and
turbine housing travels at very high speeds.
Adequate clean oil supply to the journals is a
must to stabilize, lubricate and cool.
Oil supply to the turbocharger immediately
after the start of the engine and minimum oil
pressure during its operation, ensures proper
functioning of the journals.
Oil contaminated with dirt or foreign material
will wear the journals and journal seating area
of the shaft.
Dirt in the oil blocks the oil holes in the journals
and central housing leading to oil starvation to
the turbocharger.
Dust, sand or any foreign particle entering into
the turbocharger compressor housing will
damage the aluminum compressor wheel
blades, thus leading to turbocharger failure.