OK, operation Kerosene Blowback has ceased. After a spirited bout of Plinko-Roman wrestling, it's now firing without spraying my glasses and functioning perfectly.
I took Jim's advice and decided to blow out the bolt with some air. Didn't want to fire up the air compressor and scare the packrats in the garage, so found a bottle of canned air. These have to be disassembled from a fired bolt, not cocked. Being the industrious sort, I wanted to protect the firing pin. So I grabbed an empty .22 case from my cleaning box, and after some fiddling, got it started into the chamber. There is no bolt hold open either, except your thumb. Let it fly forward, locked and loaded (the empty), clicked the trigger, and ready to disassemble! Hmmm....that trigger click sounded a little weak.
Pushed the rear bolt release button. Pulled the op rod. No joy. pulled harder, stuck solid. Now I panic. I'd read about these 74s, and you do NOT want to cock one with the safety on, it will jam the action and you can't ever open it again without blow torches. Safety is off, it's not that. Sheeze....what did I do? Pulled harder, that action is not budging, and I cannot cock it. Oh man, I must have broken the firing pin inside there! 75 years of who knows how many people jimmying with this gun, and I break it the 3rd disassembly.
Then I thought; could the .22 case be stuck? Nah...it's just a damn .22, once fired. That action should eject it with my firm pulling. But to be sure I got a cleaning rod and ran it down the barrel and tapped it. Nothing...the bold is locked up, springs and splintered firing pins making the action into a workshop can of screws. Maybe I should tap the cleaning rod a tad harder....Bonka....while pulling the op rod. Presto! The bolt retracts, the .22 extracts, and I grab it with my little fingers and throw it on the table! Push the button, remove the bolt assembly, blow out the action with canned air. Gingerly reassemble.
Took it out to the desert and works fine, lasts a long time. Thanks JIM, you forgot to mention don't try to outsmart the gun....