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#31
29-11-04, 06:29
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Another technique
On extracting stubborn threaded fasteners: A very effective method I have used in the past is once you have a method of exerting torque (be it a welded-on nut, an eze-out or whatever) is to set up a steady, regular vibration while applying the torque. My favorite is a pneumatic hammer set to its lowest force-level but a small (6-8oz ball peen hammer) works also. The theory is that the vibrations cause the threads to loosen for a split second, allowing the fastener to move just a little for each vibration cycle. You do not beat on the fastener itself but right next to it. Of course, penetrating oil helps and the vibrations help the oil penetrate. (O.K. I'm one of the worlds worst spellers but I did graduate #2 in my class at aircraft mechanics school; Spartan in Tulsa).
Hope this helps. Roger in Vegas
__________________
Worlds Greatest Impulse Buyer 
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Threaded Mode