NOTE: To enhance the turbocharger inspection, an
inspection sheet (Form No. DF-2280 available
from Distribution Service Center--English only)
can be used that lists the inspection steps in the
proper order and shows potential failure modes
for each step. Check off each step as you
complete the inspection and record any details or
problems obtained during inspection. Retain this
with the work order for future reference.
COMPRESSOR HOUSING INLET AND COMPRESSOR
Checking Inlet and Compressor Wheel
1. Check compressor inlet and compressor wheel (A) for
foreign object damage.
NOTE: Foreign object damage may be extensive or
minor. In either case, the source of the foreign
object must be found and corrected to eliminate
2. Mark findings on your checklist and continue the
NOTE: You will need a good light source for this check.
3. Check compressor inlet for wheel rub on the housing
(arrow). Look very closely for any score marks on the
housing itself and check the tips of the compressor
wheel blades for damage.
Checking Compressor Inlet
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