GEAR 1280420 - Caterpillar

(1) 4B4910 Spring (new): Length under test force ... 69.85 mm (2.750 in)Test force ... 62.3 to 71.2 N (14 to 16 lb)Free length after test ... 101.6 mm (4.00 in)Outside diameter ... 24.6 mm (.97 in)(2) 9H1112 Spring.(3) 9M4886 Washer. Use as required to obtain a 1.50 0.25 mm (.059 .010 in) assembled length of the 9H1112 Spring (2).(4) Clearance for valves: Intake valves ... 0.38 mm (.015 in)Exhaust valves ... 0.64 mm (.025 in)(5) Torque for locknut on valve adjustment screw ... 29 7 N m (22 5 lb ft)(6) Bore in bearing for shaft (new) ... 18.448 0.013 mm (.7263 .0005 in) Diameter of shaft (new) ... 18.402 0.013 mm (.7245 .0005 in)Maximum permissible clearance between bearing and shaft (worn) ... 0.20 mm (.008 in)(7) Diameter of valve lifter (new) ... 33.287 0.013 mm (1.3105 .0005 in) Bore in block for valve lifter (new) ... 33.388 0.050 mm (1.3145 .0020 in)Maximum permissible clearance between lifter and bore for valve lifter (worn) ... 0.30 mm (.012 in)