Holset HX25 - CHRA (Core); Bearing Clearance

Secure the turbine housing and check the thrust
clearance using a dial gauge.
Ensure clearance is within MIN/MAX values shown on
Service Data Sheet.
If axial clearance does not meet specification refer to
turbocharger Service and Overhaul to strip and rebuild
the CHRA (core).
HX25/25W/27W Service Repair Manual Component Testing and Replacement
Bearing Clearance
4:5
Check the radial movement at compressor impeller
nose using a dial gauge.
Ensure movement is within MIN/MAX TIR (Total
Indicator Reading) values shown on
Service Data Sheet.
If radial movement does not meet specification refer to
turbocharger Service and Overhaul to strip and rebuild
the CHRA (core).