Prior to attempting to fire up and drive the Jaguar I wanted to make sure we had good clean fuel and that the filter in the fuel tank sump and the seal around the sump were in good shape. When I got the car I noted that there was a little gas that leaked around the sump. A slight tightening of the threaded sump fixed this – but I was leery and wanted to see what I had. In any case, I wanted to drain the tank of any small remnants of fuel – so taking off the sump was the thing to do.
Again – please do not do this if you are not 100% sure of what you are doing. Gasoline is highly flammable and your are basically unplugging your fuel tank. If you have any appreciable quantity of fuel – or are not sure STOP! If there is any chance of a flame or spark anywhere near STOP! Get a pro to handle this for you.
Now removing the sump is easy – the bottom of the sump is accessible even when the car is on its road wheels. There is a bolt and soft metal washer that unscrews from the bottom and allows gas to drain. The cylinder assembly of the sump has a hex nuthead on the bottom and using a spanner you can simply unscrew the whole cylinder and drop it from the tank. There will be a large rubber seal at the top of the cylinder and once the cylinder is dropped you will see the fuel feed tube that goes to the electronic fuel pump and the small fabric or metal filter attached to it.
Now, I found that the fabric filter (likely original with the car) simply fell off the fuel feed tube and the rubber seal on the sump was almost completely perished. The good news is that these are cheap to replace and I got to them before there was any harm done. I replaced to original filter with a stainless steel one. I also got a new rubber sump seal. The other good news was that the small amount of fuel that came from the sump looked very clean and there was not rust or other worrying residue in the sump bottom, filter or the remaining fuel. I repainted the sump, put things together and moved to the next task.