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^ yes. This is why I say to check for oil that looks to be coming from behind the face of the turbine wheel (same applies to compressor). Checking for cracks around the WG seat on the turbine housing can be tough without tearing it down and blasting the housing because of the soot and typical...

The two critical measurements are turbine shaft axial and radial end play. Axial play indicates hydrodynamic layer provided for thrust on the turbine shaft. Radial play indicates hydrodynamic layer provided for the CHRA (center housing rotating assy) to turbine shaft. These are actually the...