[rsavage]

Joe,
Getting back to your original question, I don't think there is any real good way to see what the inside of the tank is like without dropping it and taking out the sending unit. Old tanks usually have junk and or rust in them and they often are "thin" under the straps due to rust and develop leaks once disturbed. I assume that you are talking about the rear mounted original tank. They do make a coating that can be used inside a tank if the tank has some interior rust but is solid. I've used it on an old Chris Craft galvanized tank and it worked well. Obviously, the tank has to be out, cleaned inside, and dry as you pour a couple of quarts of the tank liner into it and turn it many many times. If I remember correctly, it cost about $50 or $60 bucks for the coating. That tank was thick and solid but had to be saved as no one makes a replacement 52 Chris Craft tank. Don't know if I would waste the time and money on an old stock Burb tank. Good luck. Keep us posted.