Just something else to look for, make sure the pushrod is down in the center of the lifter. It can sit on an edge of the plunger cup. You lash it and sometime later pop! It slips into the correct spot, but now your lash is HUGE with solid and big with hyd. Could be my tired old eyes, but cylinder 2 exhaust seems like the pushrod is not in the lifter center and the rocker adjuster is sticking out on top more than the others. Again old and blind!