Hi Charlie,
I finally got the answer back on my car. The timing chain tensioner was missing, because it apparently broke and the pieces went all through the engine.
Chain, not belt. I've replaced the belt twice. My mechanic told me that the chain is not supposed to be replaced, which I've ever heard before. But he's also seen this before, as well.
It requires a new engine, and I don't think it's worth it. I don't do my own repairs, so it would be $5400 to put in a used one.
I think this is the end of me being a tiburon owner. It was a fun almost 15 years. Except that everything kept breaking.
Good luck with yours.
--Cheryl