Service Manual for WP6 Diesel Engine
76
Fig. 3-43 Rotor axial movement measuring
(3) Compressor impeller radial clearance checking
Press the compressor impeller radially and measure the maximum and minimum clearance between
compressor impeller and compressor volute, which should be within 0.4~0.8mm, if exceeds this
range, then check the bearing and eliminate the fault.
NOTICE: Ensure the turbocharger is cold when performing the measurement.
Fig. 3-44 Compressor impeller radial clearance measuring
Routine maintenance:
(1) Check whether the pipe connection between turbocharger and engine is loose, eliminate the
problem in time.
(2) Check turbocharger for air leakage and oil leakage, eliminate the fault in time.
(3) Check whether turbocharger fastening screws are loose, eliminate the problem timely.
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General