Points to Ready to Run Distributor

[Shruted It]

Hey All,

I've swapped my old points for a new ready to run electronic ignition. My question that I'm hoping can be answered is if I can tie in my new 12v supply wire into the resistor wire, by splicing into it, thats already in place? Will I get the 12v I need do you think?

I Just didn't want to run new a new wire through wall to IGN if it can be avoided.

Thanks all

Andrew

 

[Shruted It]

Here's the wiring diagram supplied with the distributor.

 

[Gary S]

Your electronic ignition requires 12v to operate correctly. The resistor wire drops the voltage to some lower voltage depending on the load on the wire. So, no, the electronic ignition won't work properly getting power from the resistor wire. Run a wire directly to the IGN source and use that. Also, fuse the wire near the source in case of a short in the future.

 

[Shruted It]

Gary,

I appreciate your advice. So basically i need to run a new wire, with a fusable link, from IGN on fuse box to coil?

My experience with this is limited so forgive me.

Thanks a lot
Andrew

 

[Lars_2Gen]

I replaced the wire from the bulkhead to the distributor. No need to run a new one from the fuse box.

 

[COPO]

Gary,

I appreciate your advice. So basically i need to run a new wire, with a fusable link, from IGN on fuse box to coil? My experience with this is limited so forgive me.

Thanks a lot
Andrew

Yes, IGN at the fuse box and + side of the coil and fuse it with this type of inline fuse holder at the fuse box with a 10A fuse.

https://images.app.goo.gl/MbBDb5AvEA36pMeq8

 

[Green hornet]

This is what I did instead of drilling a new hole in the firewall for a wire. I drilled a hole in the grommet that holds the insulation to the inside of the firewall and ran the wire through that. There is a grommet just below the brake booster by the fuse box. Nice and clean. Hoe this helps.

 

[BigBlock73]

Remove the black tape wrap, trace the resister wire back to the bulk head.
IIRC the resister wire is spliced into a regular wire, if not remove it from the bulk head carefully remove the connector from the wire and reinstall with regular wire.

 

[Shruted It]

Hey all. Just thought I'd share my results. After disconnecting the direct 12v lead from starter to coil, I thought for the heck of it I'd check the volts from the resistor wire that came from the ignition. Turns out there was 12v there already so I didnt need to add any new wiring. Strange huh? The wire also seems to be a basic wire...no insulation or anything that would suggest it was a resistor wire. My understanding was that resistor wires had a different look to them?

At any rate, the car runs but after some motor upgrades i think the carb isnt supplying enough fuel to keep up. Sluggish off the line then kicks in eventually. Ordered some bigger carb nozzles which should do the trick.

Thanks again for the advice and sharing your experiences. It means a lot.

Andrew

 

[Gary S]

The resistor wire will measure 12v with no load. Once you add the load of the distributor, the voltage will drop. If the load resistance of the distributor is 100 ohms and the resistance of the wire is 100 ohms you will get only 6v at the distributor with the engine running and the distributor working. If the wire resistance is 100 ohms and the distributor load is 200 ohms, you will get 8v at the distributor.
The distributor will try to work at the lower voltages, but it won't deliver the higher voltage you need for good performance. At lower voltages, you can expect to see misfiring of the plugs, and a sluggish performing engine.