Thanks to everyone for your help! I can officially announce that Chugger can be renamed Zippy. Not a squeak is left, and it starts right up and runs very speedily and evenly - sews beautifully, too. I gave it another coat of glaze and it's nice and shiny. I am so proud of myself and grateful to you, because four days ago, this was a machine that was filthy inside and out and couldn't run at all. Now it's so beautiful and runs great! I honestly think fixing machines is more fun than finding them in great shape, although that perfect Kenmore is still making me awfully happy. So, I guess it's good either way.