How not to remove a pulley? – Update


So I tried to remove the pulley again. I tried Bill’s suggestion on heating the pulley. It worked heating the shaft but now the puller and this little metal piece (in the second picture) is not allowing the puller to pull. I gave up for now.

Original Post link Bill’s quote: “I have done the same, breaking a stuck pulley. 2 ways you could have removed the pulley. 1. heat the shaft with a cutting torch. The heat would have expanded the pulley and the puller would have removed it. by putting some tension on the puller first, and then adding heat, the pulley would have popped free. 2. Since the motor was junk anyways, you could have cut the motor shaft off with the pulley attached, and either had it pressed out at a auto parts store, or put the pulley loosely on top of a vise and hammered the shaft through to remove it. Always and I do mean always use antisieze on everything you assemble to help you at a future time in case it ever needs disassembly.”

2 Replies to “How not to remove a pulley? – Update”

  1. give me an approximate diameter of the pulley, and the shaft diameter and i could send you a used replacement. I believe there are many at the car wash i work at. bill

  2. You’re supposed to heat the pulley, not the shaft. Heating the metal expands it, and you’ve expanded the shaft and made it even tighter. Spray the shaft on both sides with WD-40 or whatever penetrating oil you prefer, then gently tap the pulley farther onto the motor to break it free and get lube in it. Use a screwdriver with a plastic handle like a chisel to move the pulley, which will prevent damage to the motor bearings. Once you get it broken loose, use the puller again, tighten it snug and tap lightly on the end of the puller screw, tighten it snug again, repeat. Lift up on the puller while you tap on the screw, which will prevent damage to the motor bearings. The key is not holding the pulley on, so don’t worry about it. It will slide out with the pulley if it’s stuck in it.

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