broken pushrod question... newbie

On the rocker shaft that you show, the curved washers under the front rocker shaft bolt is in the wrong place. The longest curved washers should be under the 2nd and 4th rocker shaft bolts. And the 2 front rockers look to be swapped around. No spacers.
FSM time for sure. And yes, AJ, 18 ft-lbs torque max on the rocker shaft bolts.