Model 2120 Tractor TM-4252 (Dec-70) Engine 20 Cylinder Head, Camshaft and Balancer Shafts 10-11 Diameter of balancer shaft bearing journals ...... 1.4995 to 1.5005 in. 38.087 to 38.113 mm Diameter of bushing bores ............... 1.5020 to 1.5040 in. 38.150 to 38.201 mm Dimensions of new paxts BALANCER SHAFTS Weax Tolerance Clearance ...... .... ............. 0.0015 to 0.0045 in. 0.04 to 0.12 mm Diameter of cylinder block bores for bushings ..... 1.6245 to 1.6255 in. 41.262 to 41.288 mm Thickness of pressure plate ................ 0.117 to 0.119 in. 2.97 to 3.02 mm 0.006 in. 0.15 mm Press on gear flush with face of balancer shaft, within a tolerance of - 0.0005 in.
- 0.013 mm End play 0.002 to 0.008 in. 0.05 to 0.2 mm 0.015 in. 0.38 mm Rocker arm shaft to cylinder head, cap screws .............. 35 ft.lbs. 4.8 mkg Cylinder head to cylinder block, cap screws .............. 110 ft.lbs. 15 mkg Injection nozzles to cylinder head, cap screws .............. 20 ft.lbs. 2.8 mkg Fan to V-belt pulley of water pump ................... 20 ft.lbs. 2.8 mkg TORQUES FOR HARDWARE Camshaft thrust plate to cylinder block, cap screws .......... 35 ft.lbs. 4.8 mkg Upper idler gear to cylinder block, cap screws .............. 65 ft.lbs. 9 mkg Intake manifold, cap screws 35 ft.lbs. 4.8 mkg Timing gear cover to cylinder block, cap screws ............. 35 ft.lbs.
4.8 mkg Exhaust manifold, cap screws 35 ft.lbs. 4.8 mkg Rocker arm cover to cylinder head, cap screws ............. 2 ft.lbs. 0 28 mkg Balancer shaft pressure plate to cylinder block, cap screws ....... 35 ft.lbs. 4.8 mkg Printed in Germany