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'73 911 T Targa
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Tach doesn't work after Pertronix points install
I installed Pertronix points in my '73T and now my tach doesn't work. I finally found and used used the wiring diagram below, but only after several unsuccessful experiments. Is it possible I baked the tach, or is there possibly some other known idiosyncrasy with Pertronix and the CDI tach?
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05-03-2014, 06:14 PM
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ROW '78 911 Targa
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Are the Black wire from the CDI and the Purple/Black wire from 14 pin connector both connected to the Pertronix Black lead?
They should be.
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Dennis Euro 1978 SC Targa, SSI's, Dansk 2/1, PMO ITBs, Electric A/C Need a New Wiring Harness? PM or e-mail me. Search for "harnesses" in the classifieds. Last edited by timmy2; 05-03-2014 at 09:40 PM.. |
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05-03-2014, 08:13 PM
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Registered
Join Date: Nov 2007
Location: Orange, California
Posts: 474
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The Pertronix, when connected as shown should not blow your Tach. If you go back to your original points setup does the tach start to work properly again?
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05-03-2014, 09:33 PM
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Moderator
Join Date: Dec 2001
Posts: 9,569
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What is the date on the back of your tach? Is the speed switch installed?
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'66 911 #304065 Irischgruen ‘96 993 Carrera 2 Polarsilber '81 R65 Ex-'71 911 PCA C-Stock Club Racer #806 (Sold 5/15/13) Ex-'88 Carrera (Sold 3/29/02) Ex-'91 Carrera 2 Cabriolet (Sold 8/20/04) Ex-'89 944 Turbo S (Sold 8/21/20) |
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05-04-2014, 05:01 AM
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Heinz
