Well, better late than never. I did get my Saturn running again. Due to weather, parts delays and misdiagnosis I spent a lot more time and money than I planned or had to, but she does seem to be in good shape now. Although the timing chain was still in place and looked OK, I replaced it. I actually did the whole timing set replacement, which includes chain, crank sprocket, two cam sprockets, fixed guide, top guide, adjustable guide and chain tensioner.