Table 1-2. Repair and Replacement Standards - (Cont ) Manufacturer’s Maximum dimensions  and allowable tolerances  in wear  and inches clearance Components Minimum Maximum Drive  for  tachometer,  overspend  and/or cranking  limit  switch: Bore  bushing  installed 0.5005 0.5013 0.001 Outside diameter of shaft 0.4990 0.4995 0.0005 Clearance - shaft to bushing 0.001 0.0023 0.002 Bore in gear 0.4975 0.4985 0.0005 Fit of shaft to gear 0.0005 0.002 0.0015 inter- inter ference ference End  play  installed 0.000 0.035 ----- Electric  starter  commutator  diameter 1.6480 1.6800 0.002 Commutator minimum turned diameter 1.6470 1.6700 Brush  length 0.3750 0.7500 0.3750 Armature shaft diameter 0.8700 0.8720 0.0140 Armature  maximum  end  play 0.0300 0.0500 Fit of armature shaft in bearing 0.0020 0.0060 0.0020 Armature shaft drive end diameter 0.7450 0.7460 0.0030 Distance from end of armature shaft to face 4.8100 4.8400 0.0300 of  spline Clearance between thrust washer and pinion 0.020 0.050 Turbocharged Impeller shaft bearing bore 0.4000 0.4019 Impeller shaft bearing outer diameter 0.6182 0.6170 Metallic seal ring bore 0.5015 Impeller wheel bore to shaft fit 0.0002 0.0004 Shaft  radial  movement 0.003 0.007 Shaft end play 0.001 0.0042 Bore,  impeller  shaft  bearings 0.4019 Outer  diameter  impeller  shaft  bearings 0.6182 Thrust  bearing  collar  bore 0.l7ll 0.1720 Metallic seal ring bore 0.5015 1-45