Pertronix on AQ125 help

[Aloysius]

Re: Pertronix on AQ125 help

You have to test it at the positive side of the coil, that connects to the power wire for the pertronix. This powers the amplifier in the Pertronix unit. The starter motor MUST be engaged and cranking the engine, as this will cause a voltage drop. ALL! systems drop voltage with load..that's why your lights dim when you crank the car/truck/boat.

The negative side of the coil grounds at the distributor. This is what causes the pulse to the coil. It's also the side the tach picks up its pulse. Disconnect this wire, and try cranking it also...a shorted tach will give problems also.

Points and coils don't care what the cranking voltage is. Spark is caused by the collapse of the field in the coil. That's why ballast resistors work with points and coils.

 

[JohnVH]

Re: Pertronix on AQ125 help

I tried with the tach disconnected, didnt help.

Ill check the voltage shortly.

 

[JohnVH]

Re: Pertronix on AQ125 help

I tried with the tach disconnected, didnt help.

Ill check the voltage shortly.

Ok 8.5-9.5 without a jumper. 9.5 with the jumper cranking voltage at the coil

Jumping the dist. A tooth now..

 

[Aloysius]

Re: Pertronix on AQ125 help

You don't have enough voltage to trigger the electronic unit. Period. It's gotta see 10 volts. find out WHY you have so much voltage drop.

don't believe me? Use your second battery, or a remote 12 volt battery, to trigger the unit.

forget trying to change the distributor. It's low voltage.

 

[JohnVH]

Re: Pertronix on AQ125 help

Ok. Success! The distributor did need to be jumped one tooth also (advanced). And, I put a much larger battery in, it came with a small car battery when I bought it. I ran the little one down cranking. Now with a big deep cycle, and the timing right, it pops off quick. Excited to hit the bay now. Too bad I put the crab pots away for the season

So in a nutshell, I ran the small battery dead cranking because the timing was off, so with the timing right, and a big deep cycle, it sounds really good!


Thank you to every one of you that helped. Greatly appreciated and ill buy ya all beer someday

 

[chaparall villain 2]

Re: Pertronix on AQ125 help

i put a hotspark conversion in one and had to mave the distributor in little increments in both directions until it finally fired enough to time but sometimes when you make the change it is the magnetic pickup over the center that causes the change in timing since thats what the module reads from .... good luck