Frontera 2.4i - Fuel pump HACK 

I'd say its about 20kg. Before removing it make shure to soak the bolts in oil at least a few hours, they will be rusted and they can break if they are stuck. Also, when removing the tank make shure to let it down at an angle, first the left side, so you have access to remove the cables and the hoses from the pump (on the top) and the filler neck on the right side, or else those can break too. There wont be a lot of space to fit your hand into, but the method works