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Join Date: Jan 2003
Location: MESA AZ
Posts: 505
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Desperate for Pertronix help
Have a 67 912 with a 75 2.7s engine. I am installing a pertronix ignitior system. The engine is all the way intalled, but I am having problems with the ignition. I know the red wire goes to 12v switched, but where specifically does the black wire go? The info I have found says to go to the same place the point's negative wire went, but since I didn't start out with an enigne in the car, I am not sure where that is on the CDI box (A, B, C or D).
Thanks - Kris
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1967 912 2.7 1977 MGB (bright yellow) 1985 Honda Spree Moped (great for towing rollerbladers) A flute without holes, is not a flute. A donut without a hole, is a Danish. |
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04-30-2004, 08:32 PM
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Join Date: Dec 1999
Location: TX USA
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Kris,
'D' is the double ground tab on the case of the CDI unit ... right next to the 3-pin connector ... though the engine wiring harness should have a braided ground shield that runs from coil to distributor to the CDI case ground.
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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04-30-2004, 08:41 PM
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I don't want to sound stupid, but just to make sure you are saying that the negative from the pertronix goes to the D on the cdi box? My engine didnt come with a wiring harness, so I have pretty much done this all through wiring diagrams... it's been a real PITA.
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1967 912 2.7 1977 MGB (bright yellow) 1985 Honda Spree Moped (great for towing rollerbladers) A flute without holes, is not a flute. A donut without a hole, is a Danish. |
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05-01-2004, 11:21 AM
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Yes, that is correct, though not all factory schematics show a 'D' terminal on the CDI box. Here is a Bosch publication page that doesn't show the ground tab on the case as 'D' though the ground connection is there without a label:
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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05-01-2004, 02:36 PM
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Join Date: Feb 2003
Location: Black Rock, CT
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Is Warren just the walking (and scanning) encyclopedia or what!?
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Jake Gulick, Black Rock, CT. '73 yellow 911E , & 2003 BMW M3 Cab. Ex: 84 Mazda RX-7 SCCA racer. did ok with it, set some records, won some races, but it wore out, LOL[/B] |
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05-01-2004, 05:28 PM
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perfect thats just what I was looking for. thanks a lot
__________________
1967 912 2.7 1977 MGB (bright yellow) 1985 Honda Spree Moped (great for towing rollerbladers) A flute without holes, is not a flute. A donut without a hole, is a Danish. |
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05-03-2004, 04:08 PM
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