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Reply to "Fuel Tank Sealer or Liner"

Mark, all this happened quite a while ago so I'm not positive, but aluminum tanks tend to crack in accidents so the Gov't made them illegal to use in passenger cars after a certain date.... for the early Panteras, the gov't made Ford wrap them in 2 plies of fiberglas to forestall the supposed cracking! Needless to say, few if any cracked.

As for gas tank sealants, it depends on what kind of problem you have as to the "best" fix. For pinholes, BONDO works better than anything else! For larger holes or an opening seam, I braze them up. I know- its dangerous, big explosions, etc.... I've brazed several gas tanks without being killed, or even woken up my picky neighbors. Just be very careful, fill the tank with water nearly to the area to be brazed, and go slow with lots of flux. Or, talk to a local radiator shop; those guys will often fix a gas tank if its brought to them.
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