PISTON 4750625 - Caterpillar

Marks For Tightening Connecting Rod Bolts for 7E5996 Connecting Rod Assembly(1) Bore in connecting rod for piston pin bearing ... 55.436 0.013 mm (2.1825 .0005 in) The connecting rod must be heated for installation of piston pin bearing. Do not use a torch.(2) Distance rod may be heated to 175 to 260°C (347 to 500°F) to install the piston pin bearing ... 85.0 mm (3.35 in)(3) Bore in bearing for piston pin (new) ... 50.830 0.008 mm (2.0012 .0003 in) Diameter of piston pin (new) ... 50.795 0.005 mm (1.9998 .0002 in)Thoroughly lubricate piston pin with clean engine oil prior to inserting into piston group and rod assembly.Maximum permissible clearance between bearing and piston