Thanks,
I got it apart with various folks advice, gently tapping right where cast iron end meets the round sheet metal center. Surprisingly clean inside, I cleaned all the contacts at the throw out switch, filed them a small amount, reassembled but still no luck. As I think about it, I don't think I tightened one spring/screw as tight as original when i re-assembled, tonight or tomorrow I'll try that.
Earlier, I strongly believe I proved it's the throw-out switch. First I bypassed the thermostat dial HiMedLo, still no heat. then I bypassed the timer so the power always went to the heater and motor, no heat at all but the motor turned regardless of whether the timer was on or not.. Then I jumpered the thermal fuselink, still no heat. When everything was fully reassembled and no heat, I then took the power going into the throwout switch and instead hooked it directly to the heater and it got hot right away, and the thermo cycled on and off and all was well BUT.... It also did not turn off when I opened the door and thereby shut off the motor! Dangerous excess heat for sure. So in my book, I proved it was the centrifugal throw out motor switch. But cleaning hasn't fixed it yet, so it needs another better attempt.
The schematic shows thermal link, timer, thermo dial, and motor throwout switch, nothing else, and I followed all wires and checked continuity. It has to be the throw-out centrifugal assembly for sure, I just gotta do a slower better job of inspection, cleaning, maybe new contacts? All pieces/parts/springs look intact, but 2 contacts are relatively worn down to 1/2 height, hmmmm. All lights work, door switch is proper, etc, simply no heat And prior to no heat at all, for a week or two it was iffy. I'd open and close the door 3x, turn the timer 4x, finally it worked for an entire load, then next load no heat. Intermittent behavior also tells me it's potentially the throwout more than a thermostat or timer issue or thermal fuse. The thermal fuse and motor throwout are really the only 2 safety features on this old machine, so I will fix it properly and not even think out ways to monkey rig it, no way.
I'll take any advice, and thanks in advance. I also might not get back to it till Tuesday! And when the Delco motor is soon apart again, I'll do my best for up-close good photography. I never kenw when I started this hobby that I'd need to be a great photographer too, but it surely helps me to get the correct advice.
Thanks again, I'll take another crack at the throwout switch.