Fuel Tank Level

I’m going to replace the fuel filler pipe in the boot to see if that cures my stinky boot.

Where does the fuel level in the tank sit in relation to the bottom of the pipe? Do I need to get the fuel down to a particular level to avoid petrol pouring into the boot?

From the parts list, it appears that the filler pipe attaches about 3/4 the way up the tank.

NB pre facelift