Got the Lockring Off the old fuel pump,but the pump ,even though it will move,it will Not come out!! Ive looked it over & wiggled it around & worked at it for li8ke an hour and it will not slip out past the big metal outter ring with a few tabs on it. Theres about a 16th of an inch movement,but the steel tabs prevent it from coming out. I have to get this thing going,I have no other means of transportation. ANYONE? what all instructions say remove lockring & 2 fuel lines & remove pump ......HOW? it wont pull out.!