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Old December 26, 1998, 09:22 PM   #24
Art Eatman
Staff Lead
 
Join Date: November 13, 1998
Location: Terlingua, TX, USA
Posts: 22,052
Some discussions are hard to stay out of. In 1961 or so, I got into a discussions of springs and durability with my metallurgy prof at UFla. His comment was, "If it takes a set, it's not a spring." Meaning, of course, it was less than high-grade quality.

Maybe I've just been lucky, whether it's my 220,000-mile Toyota 4WD having no loss in ride-height, or (in younger daze) my race-motors' valve trains with no failures.

In fact, one of my most reliable-feed .45ACP magazines has a spring which is noticably soft--it's a home-made 8-rounder. Go figure.

Anyhow, from a metallurgical standpoint, any spring from a reputable source should never take a set nor weaken. (Caveat: Beware the lowest-bidder problem!) Noticeable degradation should take hundreds of thousands of cycles of use.
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