Alright! Another update before I shamelessly beg for help.
I also changed the name of the thread since my questions will now focus on this tractor.
After cleaning some of the gunk and old oil out of the cylinders, I could see that there was a film of rust on the second cylinder. There was my culprit. After a week of soaking, it was still holding ATF while other 3 had drained.
Meanwhile, My wife's battery died. Took it to my mechanic to test it, and while I was there, I told him what I was up to. He ended up lending me a few tools to bolt over the frozen cylinder and crank on until it shoved it down. Sure enough, it worked like a charm, and with ease at that. I also borrowed a honing bit, and now I have every cylinder shining like they were in the factory. Progress!
So now, I think I'm at the point where I want to go ahead and give things a good cleaning, and slap them back together to start the next round of diagnostics. So, here come my questions...
Are there torque specs/a Service Manual available for the Super C online? I've searched this forum, but only found Cub specs. And are there specs for every nut and bolt on the tractor? With and without washers? I've got the head, exhaust, valve cover, oil pan, gas tank/strainer/fuel line, air cleaner, and carb to slap back on there. Also, what should I apply, if anything, on the threads of the fuel line?
Thanks for the help!