Wildguzzi.com
General Category => General Discussion => Topic started by: Stevex on November 20, 2020, 03:38:38 PM
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When did Guzzi stop using chrome bores?
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See https://wildguzzi.com/forum/index.php?topic=106818.0 (https://wildguzzi.com/forum/index.php?topic=106818.0)
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When did Guzzi stop using chrome bores?
The latest Guzzi I've seen with chrome bores was a '79 850-T3.
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850cc T3 was a transition model, some did some didn’t. Probably used up all the chrome bore T3 cylinders they had on hand to clear inventory then switched I imagine
Convert, the first 949cc motor, was not, as was the G5 that followed was not. Nickasil, Nigasil, whatever it’s called was/is incredibly durable
So it’s not so much when but what model of a lineage
Magnets help sort the chrome vs iron...I forget which
Correct me if I’m wrong
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850cc T3 was a transition model, some did some didn’t. Probably used up all the chrome bore T3 cylinders they had on hand to clear inventory then switched I imagine
Convert, the first 949cc motor, was not, as was the G5 that followed was not. Nickasil, Nigasil, whatever it’s called was/is incredibly durable
So it’s not so much when but what model of a lineage
Magnets help sort the chrome vs iron...I forget which
Correct me if I’m wrong
In my experience, all US market T3s had chrome bores, they were replaced by the T4 (in markets other than North America) which had Nigusil.
The 949 round-fins all were iron liner until '80-ish when they switched to Nigusil.
Chrome is non-ferrous, so a magnet will not stick.
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I can't remember it that way because Nigusil - Nickel and Silicon - aren't ferrous either, but they're slightly magnetic. Makes no sense to me so I haven't figured out a way yet to remember how that goes.
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Nickel has ferromagnetic properties. https://fractory.com/magnetic-metals-non-magnetic-metals-with-examples/
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Well, that explains it! Thanks Charlie! :thumb:
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My 1980 T3 California has factory Nigusil barrels. I believe it is one of the earliest MGs to have it.