z32 gas tank leak :(

[deiivo]

hi everyone here i have another problem on my Z the gas tank is leaking becouse one of the thread on the tube that goes and adjust on the tank is fuc@$#% lol so i try exposy didnt work i try that car glass glue didnt work looks like the leak is in the same screw thread so i dont know what else to do i dont know how tu make a helicoil i mean how to install it so any sugestion?? thanks in advance