Remove the intake pipe from the turbocharger. See the Remove section in this procedure.
Install protective caps from the Air Handling Clean Care Kit, Part Number 4919498, on all open connection points.
Inspect the turbocharger compressor impeller blades for damage.
Replace the turbocharger if damage is found. See the Remove and Install sections of this procedure.
If the compressor impeller is damaged, inspect the inlet piping and filter element for damage.
Repair any damage before operating the engine.
Remove the exhaust pipe from the turbocharger. See the Remove section in this procedure.
Install protective caps from the Air Handling Clean Care Kit, Part Number 4919498, on all open connection points.
Inspect the turbine wheel for damage.
Replace the turbocharger if damage is found. See the Remove and Install sections of this procedure .
Axial Clearance Check
Use dial depth gauge, Part Number ST-537.
Push the rotor assembly away from the gauge.
Set the gauge to zero.
Push the rotor assembly toward the gauge and record the reading .
Replace the turbocharger if the clearance does not meet specifications. See the Remove and Install sections of this
procedure.
Radial Clearance Check
Check the radial movement of the rotor system by pushing the turbocharger compressor wheel toward the wall of the
turbocharger compressor cover with light finger pressure.
The turbocharger passes inspection if the wheel does not contact the compressor cover wall.
Repeat the procedure on the turbine wheel.
Replace the turbocharger if there is contact between the turbine wheel and turbine housing or compressor wheel
and compressor housing. See the Remove and Install sections of this procedure.
