Completely stuck propeller on 55lb trolling motor (Wedged shear pin?) - Need advice!
The Problem:
I have a standard 12V 55lb electric trolling motor, and the propeller is completely seized on the shaft. I have removed the prop nut, but the propeller refuses to come off.
How it happened (Context):
I want to clarify that this is NOT an issue of saltwater corrosion, calcification, or melted plastic from wrapped fishing line. About 3 months ago, the prop slipped off very easily by accident. I immediately pushed it back on, and the motor hasn't been in the water since. It basically got stuck during that quick reinstallation.
The Symptoms (Very specific):
Zero play: The propeller is completely rigid on the shaft. There is absolutely no wiggle room or end-play between the plastic hub and the metal shaft.
Pulling the whole armature: When I pull the prop outward by hand, it doesn't slide on the shaft. Instead, I am actually pulling the entire motor shaft/armature out, fighting the internal magnetic pull of the motor.
No gap (Rubbing the housing): When I let go, the magnets suck the shaft back in, and the back of the propeller rests entirely against the metal lower unit (torpedo). The normal 1-2mm clearance gap is gone.
The "Click": When I pull it outward (overcoming the magnets until the internal rotor hits the bearing stop) and try to twist and pull, it makes a clicking sound and catches, but still won't slide off.
Any ideas on how to deal with the problem without risking the motor? Could a completely functional trolling motor be ruined so easily?!