Removing stuck fasteners
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==General Advice== | ==General Advice== | ||
| − | There is no general consensus as to whether steady or intermittent pressure is best for removing stuck fasteners. No matter what technique is used, you need to pay attention to what is turning and what is not. | + | *There is no general consensus as to whether steady or intermittent pressure is best for removing stuck fasteners. No matter what technique is used, you need to pay attention to what is turning and what is not. |
| − | + | *Keep in mind that fastening hardware stuck together by corrosion is stuck because the corrosion has expanded and tightly bound the fastener. This means a really stuck bolt will not allow penetrating oils in to do any good. | |
| − | Keep in mind that fastening hardware stuck together by corrosion is stuck because the corrosion has expanded and tightly bound the fastener. This means a really stuck bolt will not allow penetrating oils in to do any good. | + | *There are two effective means to break the friction that corrosion has caused. One is through mechanical movement, a proper good whack with a hammer. The other is through differential heating. Making one part expand more than the other. |
| − | + | *With heating, bear in mind axels and other important structures may lose their strength if they are heated much above 300 degrees. If you have the oil and grease starting to smoke, then you are in the 300-degree range. | |
| − | There are two effective means to break the friction that corrosion has caused. One is through mechanical movement, a proper good whack with a hammer. The other is through differential heating. Making one part expand more than the other. | + | *When taking off head studs, look at the base. If you see erosion into the stud at the block surface, odds are pretty good you will break the stud. |
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| − | With heating, bear in mind axels and other important structures may lose their strength if they are heated much above 300 degrees. If you have the oil and grease starting to smoke, then you are in the 300-degree range. | + | |
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| − | When taking off head studs, look at the base. If you see erosion into the stud at the block surface, odds are pretty good you will break the stud. | + | |
==Smack it with a hammer== | ==Smack it with a hammer== | ||
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