GENERATOR GP 4180344 - Caterpillar

Heat gear to install. Do not heat to a temperature of more than 260°C (500°F).(1) Endplay for the crankshaft ... 0.08 to 0.30 mm (.003 to .012 in) Maximum permissible endplay for the crankshaft (worn) ... 0.36 mm (.014 in)(2) Diameter of bearing surface (journals) for the connecting rods [standard, original size] ... 69.840 0.015 mm (2.7496 .0006 in) Minimum permissible diameter (worn) ... 69.814 mm (2.7486 in)Diameter of bearing surfaces (journals) for the connecting rods [0.25 mm (.010 in) smaller than the original size] ... 69.586 0.015 mm (2.7396 .0006 in)Minimum permissible diameter (worn) ... 69.560 mm (2.7386 in)Diameter of bearing surfaces (journals) for the connecting rods [0.51 mm (.020 in) smaller than the original size] ... 69.332 0.015 mm (2.7296 .0006 in)Minimum permissible diameter (worn) ... 69.306 mm (2.7286 in)Diameter of bearing surfaces (journals) for the connecting rods [1.27 mm (.050 in) smaller than the original size] ... 68.570 0.015 mm (2.6996 .0006 in)Minimum permissible diameter (worn) ... 68.544 mm (2.6986 in)(3) Diameter of bearing surfaces (journals) for the main bearings [standard, original size] ... 88.887 0.015 mm (3.4995 .0006 in) Minimum permissible diameter (worn) ... 88.749 mm (3.4980 in)Diameter of bearing surfaces (journals) for the main bearings [0.25 mm (.010 in) smaller than the original size] ... 88.633 0.015 mm (3.4895 .0006 in)Minimum permissible diameter (worn) ... 88.595 mm (3.4880 in)Diameter of bearing surfaces (journals) for the main bearings [0.51 mm (.020 in) smaller than the original size] ... 88.379 0.015 mm (3.4795 .0006 in)Minimum permissible diameter (worn) ... 88.341 mm (3.4780 in)Diameter of bearing surfaces (journals) for the main bearings [1.27 mm (.050 in) smaller than the original size] ... 87.617 0.015 mm (3.4495 .0006 in)Minimum permissible diameter (worn) ... 87.579 mm (3.4480 in)Maximum permissible run out of the crankshaft main bearing surfaces (journals) ... 0.13 mm (.005 in) See Reconditioning Procedures for the correct method to check for bent crankshafts.