COVER 8J6229 - 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) Valve lash: Intake valves ... 0.38 mm (.015 in)Exhaust valves ... 0.64 mm (.025 in)(3) Tighten locknut on intake and exhaust valve adjustment screw to a torque of ... 29 7 N m (22 5 lb ft)(4) 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)(5) 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)