I have to agree with Otto. Just replace the plug with a proper one. Easy enough to get out by screwing a lag screw in and prying it out with a prybar. The replacement just taps in (after cleaning the hole.)
The JB Weld approach is a bad band-aid fix. Who's to say there isn't another hole ready to rust thru right next to the one that's leaking? Why do the job twice?


Kevin
1951 Chevy 3100 work truck
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1929 Ford pickup restored from the ground up. | 1929 Ford Special Coupe (First car)
Busting rust since the mid-60's
If you're smart enough to take it apart, you darn well better be smart enough to put it back together.