LEMON Manuals: Even more car manuals for everyone
Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1075 (Engine Controls - Fuel And Charging Controls - Turbocharger - 3.5L ECOBOOST (272KW/370PS)) >> Diagnosis And Testing >> Turbocharger >> Component Tests >> Check for Free Rotation - Off Vehicle

Check for Free Rotation - Off Vehicle

WARNING: This page is about a different car, the 2018 Lincoln Navigator. However, it is still accessible from the selected car via links, so may be relevant.
NOTE: The turbocharger must be pre-oiled before carrying out this check.
NOTE: Turbine and compressor wheels must spin freely when turned by hand. No housing contact is permitted.

Inspect the turbocharger compressor and turbine fins for damage. If the compressor or turbine wheel fins are damaged, install a new turbocharger. REFER to: Turbocharger LH . REFER to: Turbocharger RH .

Rotate the turbocharger shaft, listen for bearing noise and roughness. If there is bearing noise or roughness a install a new turbocharger. REFER to: Turbocharger LH . REFER to: Turbocharger RH .

Press and rotate the turbocharger shaft, then repeat from the opposite side. If either the compressor wheel or the turbine wheel contacts the housing, the bearings are bad and a new turbocharger must be installed. REFER to: Turbocharger LH . REFER to: Turbocharger RH .

scientia non olet · About LEMON Manuals