Removing stuck fasteners
(→Metric Method) |
(→Hot and Cold) |
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There is a product that works basically the same way, but the inside of the sockets are lined with sharpened flutes that are also angled to dig further into the rusted nut or bolt as you turn the wrench. These are called BOLT EXTRACTOR sockets, and bite extremely well into round and rusty bolts and nuts, as the flutes are sharp and point counter clockwise. Think of what you would get if you made a mold of an extractor drill bit. | There is a product that works basically the same way, but the inside of the sockets are lined with sharpened flutes that are also angled to dig further into the rusted nut or bolt as you turn the wrench. These are called BOLT EXTRACTOR sockets, and bite extremely well into round and rusty bolts and nuts, as the flutes are sharp and point counter clockwise. Think of what you would get if you made a mold of an extractor drill bit. | ||
| − | ==Hot and | + | ==Hot and cold== |
This method uses alternating heating and cooling. The resulting expansion and contraction is thought to break a fastener loose from the grip of rust. | This method uses alternating heating and cooling. The resulting expansion and contraction is thought to break a fastener loose from the grip of rust. | ||
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#Repeat the heating and cooling process again with the torch and water. | #Repeat the heating and cooling process again with the torch and water. | ||
| + | When using the "Hot and cold" method be sure to follow proper safety procedures. Specifically: | ||
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*Wear proper safety attire including welder's gloves and safety goggles. | *Wear proper safety attire including welder's gloves and safety goggles. | ||
*As with any time you use any flammable ignition sources, have a fire extinguisher within arm's reach. | *As with any time you use any flammable ignition sources, have a fire extinguisher within arm's reach. | ||
| − | When using the | + | When using the "Hot and cold" method, care should be taken to ensure that only the bolt is heated. If the nut is heated and cooled, the nut will likely become seized tighter. |
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When using this method use this Hot and Cold method FIRST... If you use any type of penetrating oils, they tend not to let the water do it's thing when the hot and cold method is used. Please remember heat, & then use the water... several times. I think the water becomes steam which has plenty of penetrating power to get in tight places. You never heard of penetrating oil engines, but everyone has heard of steam engines. | When using this method use this Hot and Cold method FIRST... If you use any type of penetrating oils, they tend not to let the water do it's thing when the hot and cold method is used. Please remember heat, & then use the water... several times. I think the water becomes steam which has plenty of penetrating power to get in tight places. You never heard of penetrating oil engines, but everyone has heard of steam engines. | ||
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| − | Too much heat will destroy the temper of the bolt. Important bolts (brakes) should then be replaced with new as the untempered one if reused could fail. | + | *Too much heat will destroy the temper of the bolt. Important bolts (brakes) should then be replaced with new as the untempered one if reused could fail. |
==The heat and paraffin wax method== | ==The heat and paraffin wax method== | ||
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