BEARING 7T9147 - Caterpillar

This unit is for engines with 8° before TC (top center) static timing. This unit moves forward (advances) the timing 11° from low idle to full load rpm.(1) Diameter of shaft ... 4.0000 .0005 in.(101.600 0.013 mm) Diameter of bore in pump housing ... 4.0040 .0005 in.(101.702 0.013 mm)Bearing clearance (new) ... .003 to .005 in.(0.08 to 0.13 mm)(2) Torque for plug ... 75 10 lb. ft.(100 14 N m)(3) 7S8790 Spring (large): Length under test force ... 2.15 in.(54.6 mm)Test force ... 5.40 .27 lb.(23.8 1.2 N)Free length after test ... 2.80 in.(71.1 mm)Outside diameter ... .940 in.(23.88 mm)(4) 6N3578 Spring (small): Length under test force ... 1.451 in.(36.86 mm)Test force ... .55 .04 lb.(2.5 0.2 N)Free length after test ... 1.59 in.(40.4 mm)Outside diameter ... .528 in.(13.41 mm)(4) 2P9585 Spring (small): Length under test force ... 1.422 in.(36.12 mm)Test force ... .895 .072 lb.(3.97 0.32 N)Free length after test ... 1.653 in.(41.99 mm)Outside diameter ... .528 in.(13.41 mm)(5) Distance between bottom face of nut and piston when 6N3578 Spring is installed ... 1.914 .015 in.(48.62 0.38 mm)(5) Distance between bottom face of nut and piston when 2P9585 Spring is installed ... 1.903 .010 in.(48.34 0.25 mm)(6) Distance between top face of nut and center of pin hole ... .156 .010 in.(3.96 0.25 mm)(7) End clearance of the shaft (new) ... .003 to .007 in.(0.08 to 0.18 mm) Torque for gear retainer bolts ... 75 10 lb.ft.(100 14 N m)