3 400 Series Rocker assembly To remove and to fit Operation 3-2 Engine Torque Nm (lbf ft) kgf m 403C-11 Rocker assembly nuts 23 (17.0) 2,3 403C-15 404C-22 404C-22T Rocker assembly nuts 33 (24.3) 3,3 Caution: Ensure that the valve stem caps are on the valve stems and the pushrods are located in the rockers after assembly. Note: An ‘O’ ring (1) is fitted in the groove in the rocker assembly. 1 H1035 14 Workshop Manual, TPD 1458E, issue 3 - Perkins Confidential: Green