Fuel Tank

I'm starting restoration on my CA. The fuel tank is solid but has rust inside, what is the best procedure to clean out a tank?  

Ditto the nuts-and-bolts, I also throw in pieces of dog chain, nails, ball bearings, and gravel.  Instead of strapping it to a wheel, I've got a 'tumbler' I made out of scrap metal and an old gearmotor... it sits at about a 45-degree angle, and turns about 25rpm.  I push the gas-tank in there against some foam rubber, and put clamps across the opening, and let it spin.  I rinse 'em out with water, dry them fast, and fill 'em with gasoline.

Typically, if the tank is pretty clean, I won't coat the inside, as I've had more 'lined' tanks turn out to be nightmares when the lining comes loose... but a steel tank that's got good gasoline in it will not corrode.  Sediment bowl takes care of anything that shakes loose.

I second the chain... it's easiest to get back out, since you don't have to pick/shake out all the pieces.

I found an cleaner at Canadian tire call vap o rust and it worked on mine fuel tank. it can be dump down the drain as well. thxchuck

I've used battery acid from old batteries. Only takes a few minutes to remove the rust and fuel deposits.

I cleaned mine out with kerosene and a handful of quarter inch nuts. I jacked up the 4-wheeler and strapped it to the the tire and let it idol for about an hour. I did that a couple of times on and off, it cleaned it right up. I waited until the gas tank was completely dry and then coated the inside with Red-Kote. You can get Red-Kote at O'Reillys Auto Parts.