I cleaned and reassembled enough to test the furnace out and make sure it works before I sink any money into it. I hooked up Propane and 12v to it and lit the pilot light inside. The Pilot lit and stayed lit after releasing the “reset” button, aka the pilot light button. Then I shorted out the thermostat wires to turn it on. The blower fan started spinning, although very squeaky, and looking though the front pilot light hole the burner kicked on and looked great. So it works! I was able to leave it running for about 30 mins and it actually got the garage nice and warm. Since the exhaust was venting into the garage I had a window open and Monoxide detector present. Well now I know it works so next step is to tear it down and rebuild it correctly.
Started tearing down the furnace even more to repair, replace, repaint and rebuild parts. I’m waiting on a burner gasket and rubber hose to arrive yet. So I tore down the squeaky motor and found that one of the bearing race holders had popped off.
And now we wait for the parts to arrive.