F12378 Force SPRING

(1) Nut for impeller (See TURBOCHARGER IMPELLER INSTALLATION). Do not bend or add stress to the shaft when nut is tightened.(2) Torque for the bolts that hold the backplate ... 90 10 lb. in.(10.2 1.1 N m)(3) Torque for the clamp bolts ... 10 1 lb. ft.(14 1 N m)(4) Bore in the bearings ... .6268 to .6272 in.(15.921 to 15.931 mm) Diameter for the surfaces (journals) on the shaft for the bearings ... .6250 to .6254 in.(15.875 to 15.885 mm)(5) Bore in the housing ... .9827 to .9832 in.(24.961 to 24.973 mm) Outside diameter of the bearings ... .9782 to .9787 in.(24.846 to 24.859 mm)(6) Clearance between the ends of the oil seal ring ... .008 to .015 in.(0.20 to 0.38 mm)(7) End play for the shaft ... .003 to .010 in.(0.08 to 0.25 mm)(8) Torque for support nuts (put 5P3931 Anti-Seize Compound on the stud threads) ... 40 4 lb. ft.(55 5 N m)(AiResearch T18)
Make reference to ANALYZING TURBOCHARGER FAILURE, Form No. FEG45138.(1) End play for shaft ... .0065 .0025 in.(0.165 0.063 mm) Radial clearance for the shaft ... .004 to .009 in.(0.10 to 0.23 mm)(2) Bore in the bearing ... .6268 to .6272 in.(15.921 to 15.931 mm) Diameter of surface on shaft (journal) for the bearing ... .6250 to .6254 in.(15.875 to 15.885 mm)(3) Put 8S6747 Gasket Sealer on bolts holding compressor housing and tighten to ... 105 5 lb. in.(11.9 0.6 N m)(4) Put 5P3931 Anti-Seize Compound on bolts holding turbine housing and tighten to ... 175 15 lb. in.(19.8 1.7 N m)(5) Put 5P3931 Anti-Seize Compound on threads of bolts that hold turbocharger to manifold and tighten to ... 40 4 lb. ft.(55 5 N m)(6) To install impeller, see TURBOCHARGER IMPELLER INSTALLATION. Do not bend or add stress to the shaft when nut is tightened.(7) Clearance between ends of oil seal ring (earlier) ... .001 to .006 in.(0.03 to 0.15 mm) Clearance between ends of oil seal ring (later) ... .008 to .015 in.(0.20 to 0.38 mm)(8) Torque for bolts holding thrust plate ... 35 5 lb. in.(4.0 0.6 N m)(9) Bore in housing ... .9827 to .9832 in.(24.961 to 24.973 mm) Outside diameter of the bearing ... .9780 to .9785 in.(24.841 to 24.854 mm)(Schwitzer F552)
(1) End play for shaft (new) ... .0045 .0015 in.(0.114 0.038 mm) Maximum permissible end play (worn) ... .008 in.(0.20 mm)(2) Thickness of thrust bearing ... .211 .001 in.(5.36 0.02 mm)(3) Diameter of shaft (new) ... .5612 to .5615 in.(14.254 to 14.262 mm) Bore in the bearing (new) ... .5627 to .5630 in.(14.293 to 14.300 mm)Maximum permissible clearance between bearing and shaft (worn) ... .003 in.(0.08 mm)(4) Tighten band clamp with procedure that follows: a. Tighten to ... 120 10 lb. in.(13.6 1.1 N m)b. Tap (hit) clamp lightly all around.c. Tighten again to ... 120 10 lb. in.(13.6 1.1 N m)(5) Maximum permissible gap of oil seal ring, measured in bore of housing ... .009 in.(0.23 mm)(6) Torque for nut ... 22 2 lb. ft.(28 3 N m) Do not bend or add stress to the shaft when nut is tightened.(7) Bore in housing (new) ... .8762 to .8767 in.(22.255 to 22.268 mm) Outside diameter of the bearing (new) ... .8718 to .8722 in.(22.144 to 22.154 mm)Maximum permissible clearance between bearing and bore in housing (worn) ... .006 in.(0.15 mm)(8) Thickness of each thrust ring ... .1005 .0005 in.(2.553 0.013 mm)(9) Torque for four nuts (put 5P3931 Anti-Seize Compound on threads) ... 40 4 lb. ft.(55 5 N m)