PLATE AS 4187289 - Caterpillar

(1) Bore in bearing for piston pin ... 1.5010 .0003 in.(38.125 0.007 mm)(2) Bore in connecting rod for bearing [when tightened according to procedure shown in (6)] ... 2.9418 .0005 in.(74.721 0.013 mm)(3) Distance between center of bearing for piston pin and center of bearing for crankshaft journal ... 7.900 .001 in.(200.66 0.03 mm)(4) Diameter of piston pin ... 1.4999 .0002 in.(38.097 0.005 mm) Maximum permissible clearance between bearing and piston pin ... .003 in.(0.08 mm)(5) Bore in bearing for crankshaft bearing surfaces (journal) ... 2.753 .001 in.(69.93 0.03 mm) Clearance between bearing and crankshaft bearing surface (journal) ... .0030 .0015 in.(0.076 0.038 mm)Maximum permissible clearance between bearing and crankshaft bearing surface (journal) ... .007 in.(0.18 mm)(6) Torque for nuts: A. Put crankcase oil on bolt threads and seating faces of cap and nut.B. Tighten both nuts to ... 30 3 lb. ft.(40 4 N m)C. Put a mark on each nut and cap.D. Tighten each nut from mark ... 60° 5° Piston pin bearing junction and locating notch must be assembled in the top half of rod eye. Bearing junction can be located at either position "A" above centerline.