Removing stuck fasteners
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==Special tools== | ==Special tools== | ||
| − | :A | + | :A pneumatic or electric impact wrench can loosen most any fastener, given enough tool capacity and psi. But that is not always going to be on hand. The following are some ideas that may work: |
*Flameless heat tool useful for removing rusted or broken fasteners: [http://www.theinductor.com/ The Inductor]. | *Flameless heat tool useful for removing rusted or broken fasteners: [http://www.theinductor.com/ The Inductor]. | ||
*Left-handed drill bits, or screw extractors, can be used to remove many fasteners. | *Left-handed drill bits, or screw extractors, can be used to remove many fasteners. | ||
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*Another good brand of bolt extractor is named '''Extractor''', it has a little bit more "bite" than the Craftsman and Irwin extractor tools. | *Another good brand of bolt extractor is named '''Extractor''', it has a little bit more "bite" than the Craftsman and Irwin extractor tools. | ||
*Hotrodders forum thread on the [http://www.hotrodders.com/forum/does-work-grabit-seen-tv-155731.html "GrabIt"] extractor tool, as seen on a late-night infomercial. | *Hotrodders forum thread on the [http://www.hotrodders.com/forum/does-work-grabit-seen-tv-155731.html "GrabIt"] extractor tool, as seen on a late-night infomercial. | ||
| − | [[File: | + | [[File:Sockets 003.jpg|thumb|left|300px|Damaged or frozen fastener removal sockets]]<br style="clear:both"/> |
| − | === | + | |
| + | ===Instructions for making an impact-type screw removal tool=== | ||
| + | This is designed to remove a fastener that has a stripped head. | ||
*Get an aircraft rivet gun (note: not a tubing cutter, they're too fast) that has less than 2000 b.p.m. (blows per minute). | *Get an aircraft rivet gun (note: not a tubing cutter, they're too fast) that has less than 2000 b.p.m. (blows per minute). | ||
*Get one of the rivet gun sets, and weld a piece of 3/4" hex stock to the working end of the set then weld an apex tip holder to the hex stock (of course you need an air compressor, 100 psi is just fine). | *Get one of the rivet gun sets, and weld a piece of 3/4" hex stock to the working end of the set then weld an apex tip holder to the hex stock (of course you need an air compressor, 100 psi is just fine). | ||
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*Try to saw a groove in it, so that a flat-head screwdriver can be used to turn it. Use an impact screwdriver if you have one, it will work a lot easier. | *Try to saw a groove in it, so that a flat-head screwdriver can be used to turn it. Use an impact screwdriver if you have one, it will work a lot easier. | ||
*Take a 12-point socket that is just larger than the shaft of the bolt, and beat it down onto the bolt with a hammer. Turn it out with a ratchet. When finished, put the socket in a vice, and tap out the broken bolt. | *Take a 12-point socket that is just larger than the shaft of the bolt, and beat it down onto the bolt with a hammer. Turn it out with a ratchet. When finished, put the socket in a vice, and tap out the broken bolt. | ||
| − | *If a bolt is broken off below the surface, build it up with a welder until there is enough to which to weld a nut. If this breaks off try it again, this method is the best, the heat and cool cycle of the | + | *If a bolt is broken off below the surface, build it up with a welder until there is enough to which to weld a nut. If this breaks off try it again, this method is the best, the heat and cool cycle of the TIG weld will loosen the fastener in the stuck piece. |
*Center punch the broken bolt and drill the bolt head using a left hand drill bit about half the diameter of the bolt. As the bolt head is drilled, most of the time the bit will bite into the bolt head and spin the broken bolt out. | *Center punch the broken bolt and drill the bolt head using a left hand drill bit about half the diameter of the bolt. As the bolt head is drilled, most of the time the bit will bite into the bolt head and spin the broken bolt out. | ||
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