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hello from a state of disassembly.
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<blockquote data-quote="b'knighted" data-source="post: 7499" data-attributes="member: 59"><p><strong>Alternative headlug nut.</strong></p><p></p><p>I have recently removed the forging from a C oiltank to replace it with a numbered headstock. Although the studs with countersunk nuts each end appeared original the point at which shear would occur is close to the end of the thread. That strikes me as the weakest part of the stud. The modification I should like to make is to replace the nuts with spigotted nuts with countersunk heads so that the spigot is in shear, similar in principle to the spigotted nuts holding the UFM to the head brackets. A thin, fully threaded stud would be used to hold these nuts in place. Three sixeenths BSF or even a heathen 6mm should be enough as there should be no side force on this stud in normal use. The head size should of course be standard, although that risks overtightening on a small thread. </p><p></p><p>If you decide to make some of these, do me a set.</p><p></p><p>Cheers, Ian</p></blockquote><p></p>
[QUOTE="b'knighted, post: 7499, member: 59"] [b]Alternative headlug nut.[/b] I have recently removed the forging from a C oiltank to replace it with a numbered headstock. Although the studs with countersunk nuts each end appeared original the point at which shear would occur is close to the end of the thread. That strikes me as the weakest part of the stud. The modification I should like to make is to replace the nuts with spigotted nuts with countersunk heads so that the spigot is in shear, similar in principle to the spigotted nuts holding the UFM to the head brackets. A thin, fully threaded stud would be used to hold these nuts in place. Three sixeenths BSF or even a heathen 6mm should be enough as there should be no side force on this stud in normal use. The head size should of course be standard, although that risks overtightening on a small thread. If you decide to make some of these, do me a set. Cheers, Ian [/QUOTE]
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hello from a state of disassembly.
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