Mark,
thanks for the valuable information. One little hitch: my mechanic don't speak too many words of English, but he is a very good mechanic.

The engine has never overheated.

What is a STRAIGHT EDGE AND FEELER GAUGES. I don't know how to explain it to this mechanic because of English language barrier.

Finally, so, what is the labor cost to replace the the tensioner and head gasket? Is there a site where I can get this information? I live in New York.

Thanks a mil.
tgif.