HX25/25W/27W Service Repair Manual Component Testing and Replacement
4:10
It is permissible to bead blast the turbine housing if
chemical and brush cleaning is not effective.
Warning
Do not bead blast Aluminium and Cast Iron
components together.
Caution
Prevent the bead spray impinging directly on turbine
flange threads by masking or plugging.
Warning
Always wear safety glasses during cleaning.
Caution
Prevent the bead spray impinging directly on the
wastegate valve spindle (where fitted) as beads can
penetrate the spindle bore, leading to spindle seizure.
After removing the deposits, re-wash and dry the
components.
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