RING GROUP 8H6966 - Caterpillar

(1) Diameter of rear bearing surface (journal) of drive shaft ... 31.722 0.008 mm (1.2489 .0003 in.) Bore in rear bearing for shaft ... 31.803 0.013 mm (1.2521 .0005 in.)Maximum permissible clearance between bearing and rear bearing surface (journal) ... 0.20 mm (.008 in.)(2) Diameter of front bearing surface (journal) for drive shaft ... 41.021 0.008 mm (1.6150 .0003 in.) Bore in front bearing for shaft ... 41.102 0.013 mm (1.6182 .0005 in.)Maximum permissible clearance between bearing and bearing surface (journal) ... 0.20 mm (.008 in.)(3) Bore in bearing for retainer ... 53.962 0.051 mm (2.1245 .0020 in.) Diameter of bearing surface (journal) ... 53.861 0.013 mm (2.1205 .0005 in.)Maximum permissible clearance between bearing and bearing surface (journal) ... 0.20 mm (.008 in.)(4) Diameter of bearing surface (journal) of idler shaft ... 34.907 0.008 mm (1.3745 .0003 in.) Bore in bearing in idler gear ... 34.953 0.013 mm (1.3761 .0005 in.)Maximum permissible clearance between bearing and bearing surface (journal) ... 0.15 mm (.006 in.)(5) Thickness of oil pump housing: G379 ... 53.353 0.020 mm (2.1005 .0008 in.)G398 ... 69.863 0.020 mm (2.7505 .0008 in.)G399 ... 89.057 0.020 mm (3.5062 .0008 in.)Thickness of oil pump gear:G379 ... 53.200 0.013 mm (2.0943 .0005 in.)G398 ... 69.705 0.013 mm (2.7443 .0005 in.)G399 ... 88.900 0.013 mm (3.5000 .0005 in.)Clearance between gears and covers for all engines ... 0.124 to 0.191 mm (.0049 to .0075 in.)