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Post Info TOPIC: I need help/advice with Pertronix Ignitor 1181LS install in 71 Pontiac Lemans 400


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I need help/advice with Pertronix Ignitor 1181LS install in 71 Pontiac Lemans 400


Hi, I installed ignitor kit last nite in my 71 Lemans Sport with a Pontiac 400. I attached black wire to neg on coil and the red wire to + on the coil. Engine did not try to fire at all. frustrated.gifI have not checked timing after install. Before install, it was 12 BTDC.  Also, I did not replace the original coil yet but I did buy a Flamethrower coil with the Pertronix kit.

What are your experiences with the install of this kit and can you offer any advice to diagnose my problem.

Thanks, Pete

 



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Canadian Poncho Superstar!

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I've never installed a Pertronix, but I know they require 12 volts to run.  Your 71 likely has a resistive wire that feeds power to the + side of the coil, but it's not 12 volts.  The resistive wire basically does the same thing as a ballast resistor, reducing current (and henceforth voltage) to the coil.   Check to see what the instructions say on how it is to be wired.



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70 2+2 convertible
70 2+2 hardtop
70 Parisienne hardtop
72 GMC Sierra

 

 



Poncho Master!

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Yes, you are correct. It requires 12 volts when ignition is on. Find a power source that switches on/off with the key at the fuse block and run a 12gauge stranded wire to the red lead of the pertronix and cap off the old positive wire." you need switched power or your engine won't turn off"

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pontiax- (canadian pontiac X frame)1964 Parisienne 2dr. Hardtop ,lagoon aqua metallic (Q) ,421 cid Dart Industries block and heads. 550 hp. 575 ft lb  of torque.

 



Veteran Member

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I rechecked everything including the coil and jumpered the + wire to the battery and it started. Now I just have to find the switched power source on the fuse box and I will be good to go!
Thanks for your help! happy.gif
Regards, Pete



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