Here's a pic of the broken piece.

I was getting a rattling noise at idle for years that I *thought* sounded like it could be from the tc. This must have been it.

It broke off above the upper guide bracket bolt. The wear marks near the top are a result of being wedged between the chain and the cover, otherwise no chain wear marks.

The chain is still very tight. I'm leaning towards leaving it as-is.

[Linked Image]