The first thing I decided to tackle was to remove the fuel tank and clean it out. The front of the car must come off to get the tank out and to remove the stainless steal coolant lines. It was super easy. I just marked were the bolts were in the slots to make sure it went back together the same way. It is just a few bolts and the whole thing comes right off.
Then you can take the cover plate off of the front of the tub to get to the tunnel.
With the cover off, you can pull the tank right out. The tank is a really nice piece. It is fully baffled and the bungs are welded in for the sending unit and the return lines. The pick up tube is welded in as well. Again, a really top quality piece.
I blew air through the tank but it was spotless. I found no material in the tank at all. The tank sides extend down about 2 inches to create a channel to run the coolant pipes. Anyway, I want to bolt the tank in the tunnel so I slid it back in and drilled 4 holes through the tunnel and through those "legs". You can see a 1/4 in bolt in the hole in the picture.
I removed the tank again and put some edge molding on the bottom edges to avoid any rattles in the future. Next I installed some nut zerts in the tank flange.
If you don't have this tool in your shop, you need it. It is a good quality nut rivet tool. It allows you to put threaded inserts into these aluminum panels.
Here is a picture of the inserts in the tank.
I was going to insulate the coolant tubes but i had extra tape so I decided to insulate the bottom of the tank too.
Next we needed to tape the holes for the sending unit. The holes are drilled to 5/32 which is the size needed for a 10-24 tap. We used grease to catch the cuttings and kept the tank clean.
I am using these 3/8 in thick slats to act as spacers between the tank and the tunnel. This will allow me to tighten the 4 bolts that hold the tank down without distorting the aluminum.
We wrapped the pipes and finished insulating the bottom of the tank. It took 3 bags of tape 15 ft long by 3 inches wide.
Next I am going to get into the gauge box and get the fuel sender so I can get the tank buttoned up.