BEARING 1078126 - Caterpillar

During installation of the pushrods, care must be exercised to ensure that the end of the pushrod seats correctly into the lifter cup. Use a flashlight to inspect the installation of the pushrod end in the lifter cup prior to starting the engine. Damage to the valve train components will occur if the components are not assembled correctly.
Illustration 1 g02884476
Table 1
Specification for 325-2666 Valve Mechanism Gp
Item Qty Part Specification Description
1 2 247-3422 Nut Torque to 120 15 N m (89 11 lb ft).
2 3 325-2670 Bolt Torque to 200 30 N m (148 22 lb ft).
3 1 325-2663 Rocker Shaft Assembly Diameter is 50.000 0.013 mm (1.9685 0.0005 inch).
4 2 448-3228 Bridge During assembly, ensure that the slot in the bridge is positioned inboard toward the rocker arm shaft assembly.
5 2 254-5922 Bushing After installation, bore in the bushing for rocker shaft assembly is 50.086 0.015 mm (1.9719 0.0006 inch).
- - - Valve lash adjustment for inlet valve is 0.80 0.08 mm (0.031 0.003 inch).
- - - Valve lash adjustment for exhaust valve is 1.3 0.08 mm (0.051 0.003 inch).