this reminds me something of the tale with the nintendo games and the butter burnt cooter.... If it IS true, then stop arguing, accept the facts that there is NO cheap, easy fix to this. The tank will need to be professionally drained, the fuel lines dropped, and then a compression test done on the engine to ensure it hasn't been completely gutted. It WILL require a professional mechanic to inspect it as you obviously don't have anywhere near the amount of skill to deal with this, and I'm not going to argue that point. Her parents WILL find out so you've had it there too, man up and accept it and stop acting like a little whiny b1tch.