TM10-3930-660-34 4-6. TURBO ASSEMBLY - REPAIR (Cont’d) CAUTION Be sure scribe marks on diffuser (13) bearing housing (2) and turbine housing (3) are properly aligned during assembly.  Failure to properly align components could result in premature component failure. 31.  BEND LOCK PLATE (12) TABS UP TO SECURE CAPSCREWS (11). 32.  MEASURE SHAFT END PLAY. a.  Attach a dial indicator to the turbine housing (3).  Adjust dial indicator so that plunger is against shaft (24) end. b.  Set dial indicator to zero. c.  Move shaft (24) and impeller (10) assembly back and forth and read end play on dial indicator.  If end play is less than 0.001 inch,  or greater than 0.003 inch,  disassemble turbocharger, STEPS 1-19,  and check for problem.  Replace defective parts and assemble,  STEPS 1-32. 33.  MEASURE RADIAL CLEARANCE OF SHAFT (24). a.  Attach a dial indicator to turbine housing.  Adjust dial indicator plunger so that plunger is against end of impeller (13) between fins and jam nut (9). b.  Set dial indicator to zero. 4-22