Removing stuck fasteners
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(→Miscellaneous tips) |
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*Drill and tap the bolt to run another, smaller bolt down the center. A bit about half the diameter of the headless, stuck bolt is usually sufficient. Use a jam nut on the small bolt and lots of penetrating oil. | *Drill and tap the bolt to run another, smaller bolt down the center. A bit about half the diameter of the headless, stuck bolt is usually sufficient. Use a jam nut on the small bolt and lots of penetrating oil. | ||
*If it is a stripped screw, either slotted or Phillips, try using a dab of valve grinding compound on the tip of the screwdriver. The valve grinding compound will help with friction to hold the tip onto the fastener when turning. | *If it is a stripped screw, either slotted or Phillips, try using a dab of valve grinding compound on the tip of the screwdriver. The valve grinding compound will help with friction to hold the tip onto the fastener when turning. | ||
| − | Use a piece of tubing that fits in the bolt hole (OD) with the center (ID) the size of the drill bit. This will keep the drill bit centered in the bolt, when you use the EZ out. | + | *Use a piece of tubing that fits in the bolt hole (OD) with the center (ID) the size of the drill bit. This will keep the drill bit centered in the bolt, when you use the EZ out. |
*Where access allows, put a box end wrench over a stripped nut or hex bolt head, then use a centrepunch on the corners of the hex to spread the metal and wedge it in the wrench. | *Where access allows, put a box end wrench over a stripped nut or hex bolt head, then use a centrepunch on the corners of the hex to spread the metal and wedge it in the wrench. | ||
| − | *If the bolt or stud breaks off below the surface, try this. | + | *If the bolt or stud breaks off below the surface, try this method. Using a high grade bolt of same size, grind off the threaded end until the bolt will fit into the hole and touch the broken bolt. Using an electric welder, clamp the "electrode" bolt in the stinger. This works best if someone is there to help you by turning the welder on and off. With the stinger bolt inserted into the broken bolt hole and firmly against the broken bolt, have the power turned on just long enough to fuse the stinger bolt to the broken one. You might want to practice this technique on the bench to get the power and timing right. Once they have cooled for a few minutes, but are still hot enough to burn skin, place a wrench on the slave bolt and turn them out. |
| − | + | *For removing stubborn Philips-head screws, wet the tip of the screwdriver or screwdriver bit, a little bit of spit will do, and dip the bit into a bit of abrasive cleanser - like Comet or Ajax. Use enough to cover the tip of the screwdriver. The abrasive in the cleanser gives the tip of the screwdriver a little added "bite" and it's less likely to slip out of the screw. | |
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==References== | ==References== | ||
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