How to free-up rusty chain?

[indiansprings]

I usually use Kroil, I've also thrown them in a bucket of about a gallon of diesel and a couple cups of ATF. When it's just one or two links still stuck I've use an old bar in a vise and place the chain on and give it a good wack with a old broke maul handle to take the kink out, put it on a saw and run it, like 056 Kid, I've had to use a rusty chain or two to get finished up, if you can get them on the bar, running them in wood will usually cure the problem.