[Sunroof]

I went through the same thing, but my tank leak was where the brackets that hold the bolts that go onto the body had a crack. Your better off taking the tank off, cleaning it, going over the entire thing with patch welding if necessary and re-coating. I took mine to a radiator shop for a hot solution cleaning, had the leak welded and added a couple of coats of POR15. Added anew cork gaslet for the new sending unit and no problem since then.

If however, your intend is to do a fast and dirty patch job, MarineTex is much better. Its a two part epoxy that will seal cracked engine blocks!! I am sure though the area has to be clean and free of oil, this is why your better off just removing it and doing it right. One word of caution..........................on my 1973.5T I had to remove the lower valance on the fender below the bumper to take the tank down.

Good luck

Bob
73.5T