Thanks for all the reply's.

I will take off the valve cover on Sunday and see if the chain is loose and how tensioners look.

Someone said this can happen at start up and that is what happened.

I have all records on the car and miles are true from the owner, so this is odd but the car did sit for 4+ years?

I have no experience on the whole chain and tensioner replacement but what the hell I will try it since car really is nice overall.

I think I need to source out a valve cover if anyone has one around would be a good start.

Again, thanks for all the advice and opinions. I know nothing about these damn Smokey smelly diesels, haha!