
Libre Wheel Designs Compared
By Eric Neyerlin November 6, 2016
Libre Wheel Design History American Racing vs n
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“Bitching Betty” ……….. ever heard of her? Many Z’ers may have not, but if you are into 280ZX or Maxima models from the 80s, it’s more likely you have?
She’s often referred to as a piece of “Automotive History”, so I finally got to thinking, “Is there a Bitching Betty right under my nose, but I’ve never noticed her?”
With that pressing question wandering about in my mind, a couple of weeks ago I was inventorying a bunch of mysterious (to me) electronic gizmos and gadgets pulled from 280ZX cars back in 2004 and what should I find……..? Yup, there she was, “Bitching Betty” in the plastic. In fact, several days later I ran across her sister, “Bitching Bertha” in another box.!
True to my nature, it wasn’t long before I was taking a peek inside and then photo documenting what I saw. Most in interesting! Most unusual!
Essentially, Nissan created an old fashion record player with a special pickup arm/sensor “needle” suspended over a rotating plastic grooved disk driven by a micro motor via a composite plastic/rubber band. Double clicking on photos on this page will display enlarge them so you can look close up at what I am describing.
View of pickup arm over top of “record” platter which is belt driven underneath by motor in upper right of assembly.
Another view of pickup arm with micro servo motor in lower left. Photo at top page shows close-up detail of platter.
Bitching Betty, who Nissan belittles as a mere “audible warning” device appears to cross reference to 2 part numbers, 25926-89910 and 25925-32E60
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By Eric Neyerlin November 6, 2016
Libre Wheel Design History American Racing vs n
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Thought I'd take a moment to share with others a s
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