The cam lobes get all chewed up when the roller gets bad enough. Ironically I can't find that video from a few months back. Oh well, who cares anyway. If and when it happens to you or me, you'll know it. I've been pretty lucky, I haven't had to do any internal motor work on my vehicles in a long time. Nissan's, and 5.0 Ford/Lincoln's is why. Good thing too, I rotated my tires on Sunday, and was huffing and puffing. Heavy 50 pound wheels, and me out of shape, a bad combo. I'm like Stamp, when I do an oil change, I lay on my creeper, and catch a nap!
Sent from my N9131 using Tapatalk