Thanks for posting, I just double checked my parts. After 18 years mine started howling. I removed the clamp she'll cover and reached through the squirrel cage with a zip tie that I dipped in motor oil. I was able to get a couple drops on shaft/motor area and the noise stopped. I ordered the parts and will install when I'm at my daughter's house. The whole furnace was almost $600. I bought the motor, over temp switch, sail switch and circuit board for $200 delivered. As he said, the worse that happens is the hot side fan is stuck because it's metal on metal vs plastic on metal on the other side.
A good air powered pencil type engraver is very hand for vibrating things loose. Sometimes you can soak a broken bolt and use a center punch to put a spot on it near the edge. You then use the engraver to work it back and forth. If the blower wheel could be reached it might help loosen it. It's like micro beating it and breaks the bond.
Yes, I have an 120 v air compressor powered by a Honda and a 120 v flux core mig welder. Hey, ya gotta be prepared. I learned that in the Boy Scouts before they were destroyed by...well... never mind.
