So, now that I have my car "driving" properly (tranny seems near perfect), I have discovered an unusual noise.

When the car is cold, there is chain noise from the front. It goes away after a few minutes.

One mechanic thought it might be guides, but thought it could also be the chain showing wear.

I did a search, and didn't find anything about the chains on these motors, so the question is:

What is life expectancy of cam chain on 92 w140 500sel? (It currently has 161k miles...)

Thanks

-David