I pulled my pushrods out tonight, and on a couple of them it felt like the tappet stuck to it as I was pulling and it made a rattling sound. On one of them it didn't feel like the pushrod wanted to fall back into place. Is it possible / likely that the tappet came out of its hole and dislocated? I see from the TM there is an inspection cover, but it looks like a lot more work to get to it.