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Registered
Join Date: Oct 2002
Location: Newnan, GA
Posts: 14
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911SC will not start!
 Please someone help me. I was sitting in my 1982 911SC the other day reading the paper with the key in the "on" position instead of "accessory" (wasn't paying attention). The car refused to start after that and hasn't started since, although it will crank. The Haynes manual said the problem was the CDI if I didn't hear any whistling from the CDI (no whistling). So I took Mr Dempsy's advise and upgraded to an MSD 6AL and Bosch blue coil. I verified the MSD wiring and that the MSD was receiving 12 volts from the key switch. I also snipped the red wire to make the rev limiter work on 6 cylinders. The engine still will not fire (verified by looking at the plug while cranking). Could there be something else that I should be looking at? I'm pretty much at the end of my ideas. Could the distributor be bad? Someone please help this desperate enthusiast! Thanks! |
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10-14-2002, 07:04 PM
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Registered
Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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Is the fuel pump running? Does your car have a factory alarm system?
'82 SC Won't run Fuel pump electrical problem
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' |
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10-14-2002, 07:16 PM
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Join Date: Dec 1999
Location: TX USA
Posts: 9,804
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Does the resistance of the magnetic pickup coil in the distributor measure the nominal 600 Ohms at the input wiring to the MSD unit? The 'green' coax cable at the right side of the following diagram ... terminals '7' and '31d'.
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Warren Hall, Jr. 1973 911S Targa ... 'Annie' 1968 340S Barracuda ... 'Rolling Thunder' Last edited by Early_S_Man; 10-14-2002 at 09:13 PM.. |
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10-14-2002, 07:37 PM
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Registered
Join Date: Oct 2002
Location: Newnan, GA
Posts: 14
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I checked the distributor resistance and measured about 590 ohms. I'm guessing this should be okay.
But I connected the core of the green wire to the white wire of the MSD. I grounded the "shield" wire. Judging from the diagram above, maybe I should reverse these wires. Does anyone have any insight? Any help is greatly appreciated! Thanks! |
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10-15-2002, 05:38 PM
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Senior Member
Join Date: May 2000
Location: Richmond, VA
Posts: 919
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Not sure if you got an answer, but the green wire is actually a coax wire with both wires (core and shield) providing a signal to the ignition system.
I do not remember the details of my install with an Accel system, but I remember having to connect two wires from the aftermarket ignition unit to the two wires from the green coaxial wire starting at the distributor. Olivier
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Olivier Hecht 1982 911SC |
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12-09-2002, 02:22 PM
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Registered
Join Date: Oct 2002
Location: Newnan, GA
Posts: 14
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Thanks for the reply. I actually figured it out with some help from MSD. It turns out the book "101 Projects for Your 911" is about 100% wrong about how to install an MSD. But instead of complaining, I am preparing a Tech Article about the proper way to install an MSD on a CSI 911. I'll be posting it soon. Stay tuned...
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12-09-2002, 06:06 PM
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