Anyone with Pertronix ignition? Can I get a pic of your wiring?

[boro92]

Thank you!

This is perfect. I'll get going on this and make it happen.

Thanks to all who contributed.

All wires that were originally connected to the coil need be connected to the coil, in their original locations. All wires that were on the ballast need to be connected to each other.

You should have +12V at the positive coil terminal when the key is on.

The negative terminal should fluctuate between +12V and 0V while cranking the engine. If you are using a digital voltmeter you might not be able to see this due to the sampling rate of the meter. If you have a dwell meter you should read this as a dwell angle of about 35 degrees.

[madkaw]

You know you can buy a cheap voltmeter for less then 10 bucks and you wouldn't have to guess what wire is 12 volts

[soundmasterg]

I run the Pertronix on my '72 240Z without issues now. However I have had issues in the past and have discovered that you need to make sure if you are going to leave the ignition on for even a short period while you work on the car, or if listening to a radio etc., without the engine running, then you need to disconnect the wires going to the Pertronix unit in the distributor, or the Pertronix unit inside there will overhead and fry itself. I went through a couple Pertronix units due to this reason, and now I always unplug the connections before I work on the car, and plug them back in afterwards. Also, I would suggest to find a better way to connect wires up than black electrical tape. That will give you intermittant problems overtime due to the poor connection. You should strip the wires that have to join and put proper connectors on them, or solder the wires together with heat shrink tubing over them.

Greg

[Richard Oben]

A couple of questions:

I have a dual point automatic car and of course nothing lines up. I have another dizzy (single point) so I am going to hunt it down and see if the petronix fits it better. The other question is coil resistance, is there a max or only a mininum mine measures 7 ohms? The reason I ask is can I use stock coil with the single point dizzy? Or is it better to get the Petronix coil. They are cheap and I would rather not have the module blow up as we all know they are expensive.

Thanks in Adavnce, Richard.

[beermanpete]

7 ohms is rather high so it might be bad. Make sure the connections to the ohmmeter are good and solid to avoid an erroneous reading. The original coil is 1.5 ohms on the primary winding. The secondary is about 10k ohms.

The service manual does not specify a different coil for the automatic model so the coils should be the same.

[Richard Oben]

I took all the connections off and it was 1.5 ohms. Pulled the dual point and put the petronix in an extra single point I had from a parts car and it all works now. Starts faster, I have not set the timing fully yet, just by ear but it sounds stronger.

This site had all the diagrams I needed and was, as usual, a huge help. Cheers Richard.

[Travel'n Man]

Once you get your connections finalized be sure not to "burn it out" by leaving your ignition on without your engine started. If you have to work on your car pull the power from the coil and you'll be safe..............just a reminder.