Great idea, but this is unsuitable for that method.
I looked into doing that but all the hole kits are for diesel only.
Here's a pic of what I'm dealing with (cutting a hole in the top):
Thanks for your quick reply!
Now I've got confidence to do the repair.
It's an old '98 C230 Benz.
The plastic elbow inside going to the 'splash well' disintegrated, so the 'saddlebag' type gas tank fills on the other side and the pump runs dry.
So I gotta cut it open and make my own metal elbow...
I have a plastic gas tank (Ethanol) to fix.
It needs to be cut open and the internals fixed.
Then the opening needs to be re-welded.
Would you attempt to do that?
If so, what would you rate your probability of success?