156637-1920 ZEXEL 9 423 618 316 BOSCH COUPLING PLATE 9423618316 1566371920

Make reference to Analyzing Turbocharger Failure, Form No. FEG45138.(1) See Turbocharger Impeller Installation.(2) Torque for the bolts that hold back plate ... 10.2 1.1 N m (90 10 lb in)(3) Torque for the clamp bolts ... 13.6 1.1 N m (120 10 lb in)(4) Bore in the bearings ... 15.921 to 15.931 mm (.6268 to .6272 in) Diameter of the surface on the shaft for the bearings ... 15.875 to 15.885 mm (.6250 to .6254 in)(5) Bore in the housing ... 24.961 to 24.973 mm (.9827 to .9832 in) Outside diameter of the bearing ... 24.846 to 24.859 mm (.9782 to .9787 in)(6) Clearance between the ends of the oil seal ring ... 0.20 to 0.38 mm (.008 to .015 in)(7) End play for the shaft ... 0.08 to 0.25 mm (.003 to .010 in)(8) Put 5P3931 Anti-Seize Compound on the threads and tighten the bolts that hold the turbocharger to the manifold to a torque of ... 55 5 N m (40 4 lb ft)Schwitzer (S4A)
(1) End play for shaft (new) ... 0.114 0.038 mm(.0045 .0015 in) Maximum permissible end play (worn) ... 0.20 mm (.008 in)(2) Thickness of thrust bearing (where thrust rings contact bearing) ... 5.36 0.03 mm (.211 .001 in)(3) Tighten both band clamps with procedure that follows: a. Tighten to ... 14 1.1 N m (125 10 lb in)b. Tap (hit) clamp lightly all around.c. Tighten again to ... 14 1.1 N m (125 10 lb in)
Do not overtighten the clamps.
(4) Diameter of shaft (new) ... 15.997 to 16.005 mm (.6298 to .6301 in) Bore in the bearing (new) ... 16.035 to 16.043 mm (.6313 to .6316 in)Maximum permissible clearance between bearing and shaft (worn) ... 0.05 mm (.002 in)(5) Maximum permissible gap of oil seal ring, measured in bore of housing ... 0.25 mm (.010 in)(6) Install the compressor wheel (at room temperature) as follows: a. See Compressor Wheel Clearance for the correct shim thickness to use.b. Put compressor wheel on the shaft.c. Put a small amount of clean engine oil on the threads.d. Tighten the nut to 14 to 17 N m (125 to 150 lb in).
Do not bend or add stress to the shaft when nut is loosened or tightened.
e. Remove nut from shaft and apply 6V1541 Quick Cure Primer on the threads of the shaft and nut followed by application of 9S3265 Retaining Compound.f. Tighten nut to 4 N m (30 lb in).g. Tighten nut more as follows: For 99.0 mm (3.90 in) diameter compressor wheels, tighten the nut an additional 90°.For 86.4 mm (3.40 in) diameter compressor wheels, tighten the nut an additional 60°.(7) Shims. See Compressor Wheel Clearance for the correct shim thickness to use.(8) Thickness of each thrust ring ... 2.553 0.013 mm (.1005 .0005 in)(9) Bore in housing (new) ... 24.994 to 25.006 mm (.9840 to .9845 in) Outside diameter of the bearing (new) ... 24.882 to 24.892 mm