This comes from the C320 group but I thought it valuable to bring it to ours as well since I haven’t seen it discussed by our group. The discussion started with using wrenches and a propane torch to heat the hub:
“More heat should work. My experience is that it generally will take a MAP torch to get enough heat on the prop to break it loose. The MAP applies about 3 times the heat of a propane torch.”
“Any need to worry about heat deforming the cutlass bearing?”
“Start with a cold prop and shaft, a MAPP gas torch will heat the hub fairly quickly and the hub will expand enough to get the prop loose well before enough heat can get to the shaft and travel to the cutlass.
So no problem. Propane will work too but isn’t nearly as hot so you’ll heat the shaft more in
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