So I was trying to drill a hole in the bottom of the trunk to get some water out of there and I drilled through the gas tank at the same time.

Now my question is.. Is my gas tank a write off or can I patch it up and drain the old gas out as well. Or do I have to go buy a new one ?

 

If you have an older FD, I would use this as an opportunity to upgrade to a newer tank with the updated baffles.

 

What would you consider older? I have a 93 rx-7.

 

The baffles in your current tank are probably scattered all over the bottom of the tank.

I just bought a very clean but used 93 FD tank - all the baffle welds have broken off.

In my case I don't care, as I'm adding a Hyperion cover to the internal tank the fuel pump sits in.

As those covers are no longer available, a new fuel tank is the best option for you.

 

You can just weld it shut.

 

I'd be worried about metal shavings that could have gone into the tank. I would either find someone to clean and repair the tank or find someone parting out there car and get another tank
yeah let us know how that goes for you.

 

The mid-year 94's and up got a slightly modified version of the gas tank.