Distributor Wiring Question

Blue Mist 97

Seaman Apprentice
Joined
Jan 20, 2013
Messages
32
Have installed a new DUI distributor in my 97 BBC (originally had Thunderbolt V ignition installed). Looking for alternative locations to run 12 ga. power wire.

My options:

1. I can run new wire from ignition side of switch to the battery side of the distributor, but would prefer to find a closer location if possible

2. Can I run a short wire from the slave solenoid to the distributor? I believe the red/purple wire is connected to the small terminal and is on the run side. Yellow/red wire is on the start only side. Red/purple wire is fused and runs from the ignition switch to the alternator, circuit breaker and slave solenoid. If this terminal is hot on the run side, would this be an adequate location to obtain power for the distributor?

3. It has been suggested that I use the existing 12v (+) coil purple wire for power. This wire is not a 12 ga wire (but none of the purple wires in this harness are), and is probably a 14 or 16ga wire. With a run so short, will a 14 or 16 ga wire provide enough voltage to power the distributor?

Any other options are welcome and thanks in advance for any help.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,282
yes, your 16 gauge original wire will provide enough voltage. its the same wire that goes to the choke
 

Blue Mist 97

Seaman Apprentice
Joined
Jan 20, 2013
Messages
32
Thanks. Went up today and checked it with a voltmeter. The existing purple (+) coil wire was putting out 12+ volts with the key in the run position. Spliced into it and hooked it up. When I cranked it on muffs, it lit off almost immediately. Set the timing and she ran good. Will put it in the water next week, and I will double check the timing again.

Thanks again.
 

Scott Danforth

Grumpy Vintage Moderator still playing with boats
Staff member
Joined
Jul 23, 2011
Messages
50,282
yes, the purple wire is ignition. standard wiring colors. Red is hot all the time, orange is accessory, purple is ignition, grey is tach, etc.
 
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