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Jack, You just answered you own question. If you have installed a electronic ignition the you do not need the white/blk wire that went to the points contact on the side of the Distb.
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<div class="">Paul O</div>
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<div class="">On Dec 5, 2018, at 2:20 PM, Jack Wheeler via Mgs <<a href="mailto:mgs@autox.team.net" class="">mgs@autox.team.net</a>> wrote:</div>
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<div class="">Thanks, Paul. You are correct. My only question now is, why do I have this white/black wire going to nowhere? Both the oil pressure gauge and tach are working. The white/brown wire was taken out of service (before I moved it to the oil pressure
sending unit) either by a previous owner, or the mechanic who installed my electronic distributor. I don't know much about electronic distributors, so I just had my mechanic order and install it. Is it possible one of the two wires (white/black or white/brown)
was made obsolete by installation of the electronic distributor? Thanks.</div>
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<div class="">Jack<br class="">
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<div class="">On Wednesday, December 5, 2018, 3:42:04 AM EST, PaulHunt73 <<a href="mailto:paulhunt73@virginmedia.com" class="">paulhunt73@virginmedia.com</a>> wrote:
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<div dir="ltr" class="">The electric oil gauge _would_ respond to tach pulses, but in a
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<div dir="ltr" class="">significantly different way to how it should respond. But then the tach
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<div dir="ltr" class="">wouldn't work - and that wouldn't respond to an oil pressure sender. It
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<div dir="ltr" class="">doesn't even begin to explain how - apparently - both oil gauge and tach
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<div dir="ltr" class="">were working normally before the alt change, and both apparently are now,
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<div dir="ltr" class="">having swapped over an apparently previously used white/back with an
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<div dir="ltr" class="">apparently previously unused white/brown.<br class="">
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<div dir="ltr" class="">PaulH.<br class="">
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<div dir="ltr" class="">----- Original Message ----- <br class="">
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<div dir="ltr" class="">> It shows the white with brown tracer as oil pressure gauge and white with
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<div dir="ltr" class="">> black tracer as ignition coil contact breaker to distributor contact
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<div dir="ltr" class="">> breaker, or distributor side of coil to voltage impulse tachometer..
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Paul Osborne<br class="">
Department of Electrical and Computer Engineering<br class="">
University of Rochester<br class="">
201 Hopeman Building RC<br class="">
Rochester, NY 14627<br class="">
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