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Old 07-04-2013, 07:18 AM   #7
Terry, NJ
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Join Date: May 2010
Location: Bucks Co, Pa
Posts: 3,740
Default Re: Rebuilding an 80 yr old engine is always a gamble....

This illustrates what I've been contending for years, namely that metals age. These blocks survived 80 years and now they're cracking. Anyone who plays around with antique guns know it's true with old brass cartridge cases and mainsprings. We also see it in old airplanes. I've brought this this up with engineers and they insist that metals don't age, but for some reason, the older a part is, generally the more susceptible it is.
Terry
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