There are probably over 1 million of these motors on US roads. Has anybody seen a documented case of piston/valve damage on a 2uz-fe from a broken timing belt?
Depends on what you consider "documented", I suppose. I was told it is, and my source (a veteran, master certified Lexus tech that I trust) is good enough for me, but I know that's far from proof. I'm a stranger to you, and he's a stranger once removed. I don't know how I can prove it to anyone. I'm sort of sorry I mentioned it. It's not my goal to convince anyone I'm right, or get in an argument over this. In the interest of public knowledge, I'll snoop around for some sort of definitive answer rather than "some guy told me" to hopefully put the issue to rest.