timing chain cover gasket
I have my car apart as we speak doing the same fix.
I was able to remove all necessary parts with the belt still in place. Did remove the fan shrowd, distributor and valve cover.
I had to remove a coolant return pipe, which had a small bolt holding it down under the distributor, took me a few minutes to figure that one out.
I will do tune up when reasembling, wires, rotor, cap, plugs, etc. I will also need to get a new o-ring seal for water return pipe.
Not a tough job though, and a for the chain, looks new, real thick and does not apear to need servicing.
From past experience I have found timing chains to be super durable, as long as you regularly change oil and filter.