WORKSHOP MANUAL W26 Wärtsilä NSD Nederland B.V. Engine type W26
Chapter 1.5
Subject Exhaust gas/Charge air system
Issue date June '00
Axial and radial clearances, Turbocharger ABB TPS 57
After removing and before fitting the cartridge group the axial clearance "A" and radial clearance "B" must be measured (see figure above) The diffuser must be mounted and tightened to measure the clearances. Raise turbine slightly for correct measurerment of axial clearance "A".
Clearance (mm) A min. A.max. B min. B max.
TPS 57 0.12 0.16 0.72 1.22
Note: Measure and note the axial and radial clearances. lf the clearances are out of tolerance, disassemble and check the bearing parts and replace defective ones
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