470 3 Wire BreezeWorks Alternator Conversion - No Charge

[grsanchez86]

As the title says. I purchased the Breeze Works 3 wire alternator conversion. I completely disconnected the regulator, taped up the wires, removed the stator and magnets. I have the Red 8 gauge wire running to my starter as well as the red exciter wire, the black wire is going to the positive side of the coil. I am getting no power off the black wire and it appears that I'm only getting battery voltage to the charge terminal on the alternator (12.6 volts). Here's the kicker, I brought it to a local auto parts shop and they bench tested the alternator and stated it was good (now mind you I wasn't completely convinced this guy knew what he was doing). Im pretty stumped here. Any help would be appreciated. I've put a lot of work into the boat and would love to get it out on the water. If there any additional information or pictures, etc that you need to help me troubleshoot ill gladly get them.

 

[Eric 3.7LX Alpha 1]

Welcome Aboard..
That black wire is suppose to go to switched ignition, should be the purple wire off the electric choke. The (+) side of the coil will only be getting full voltage when the key is in the start position and the starter is cranking the engine from the purple/yellow wire. Then lower voltage when running as it will be fed thru the resistance wire. The purple wire between the choke and the (+) side of the coil is a special resistance wire that lowers the voltage to the coil to extend the life of the points. See the attached diagram:

 

[grsanchez86]

I forgot to note that I have the Pertronix Ignitor setup. Because of this I have 2 cables running to the + side of the coil, one off the choke that I spliced in (to supply constant keyed 12 volt power) and one off of the solenoid. So technically the black wire is getting keyed power. I also thought the black wire off the alternator was supposed to supply 12+ volts to the coil while running?

 

[Eric 3.7LX Alpha 1]

Maybe the alternator body isn't grounded through the brackets. In the diagram it also shows a ground terminal on the alt.

 

[grsanchez86]

Maybe the alternator body isn't grounded through the brackets. In the diagram it also shows a ground terminal on the alt.

I ran a ground wire from the ground post on the alternator to the motor ground. Still no go. At this point im going crazy, only option I can think of is trying a new alternator? Unless there's any other suggestions.

 

[nola mike]

. I am getting no power off the black wire and it appears that I'm only getting battery voltage to the charge terminal on the alternator (12.6 volts).

The black wire is powered by the ignition, it doesn't provide power.... Are you not getting 12v to the black wire with the ignition on? And are you getting 12v to the red wire all the time? And by charge terminal you mean the orange wire, right?

 

[grsanchez86]

The black wire is hooked to the + terminal on the coil which, with the key on, is getting ~11.2-5V of power (its getting power from the choke). I am getting 12v to the red wire all the time. By charge terminal, yes the orange wire. Im going to try running 12v directly to the black wire off the battery to see if I can get it to start to charge.

 

[grsanchez86]

So I solved the issue. I got a larger gauge wire to run off the ground terminal and ensured it was run to a confirmed good ground. Boom, charging. I talked to Breeze Works and he said out of thousands he's sold he's only had 1 or 2 that didn't actually ground through the bracket and block. Go figure!