IDENTIFICATION 8T0450 - Caterpillar

(1) Diameter of bearing surface (journal) of the camshaft ... 2.6195 .0005 in.(66.535 0.13 mm)(2) Get temperature of the gear to a maximum of 750°F (398°C) before installation on the camshaft.(3) Torque for nuts ... 75 10 lb.ft.(10.4 1.4 mkg)(4) Diameter of seat for gear ... 4.748 .001 in.(120.60 0.03 mm) Bore in gear ... 4.750 to 4.751 in.(120.65 to 120.68 mm)(5) End play for the camshaft ... .010 to .020 in.(0.25 to 0.51 mm) Maximum permissible end play for the camshaft ... .035 in.(0.89 mm) (6) Bore in bearings for camshaft ... 2.6243 .0013 in.(66.657 0.033 mm)(7) Bore in housing for bearings ... 2.8745 .0005 in.(73.012 0.013 mm)(8) Distance from bearing to face of housing ... .030 in.(0.76 mm)(9) Distance from end of dowel to face of housing ... .18 in.(4.6 mm)