Rocker arm retainer came loose!


Turbo Regal Obsessed
Has anyone ever had a rocker arm retainer pop off and cause the rocker arm to come loose in the valve cover? I started my 86 and heard an awful clatter from the passenger valve cover. I pulled the cover and found the retainer (nylon) had come off and the rocker arm was loose on the shaft. I went to remove the push rod and it looked like King Kong had used it for a toothpick. So I make a run to the parts store and purchased all new push rods and retainers. I replace them and fire it back up. The clatter is gone but it still has a dead miss on the cylinder that the rocker came loose on. Hoping for the best but expecting the worst.:confused: