no power to coil

[Brat78]

So, I'll try to keep this short. I just put a new ea71 in my 78 brat. I have the fuji manual from 78 and the chiltons, with wiring diagrams, but I am no electrical engineer.

I have no power to the coil. The large starter wire has power, but not the little wire off the soloniod with the ignition on. The coil has nothing on the + or - side of the coil. I tried a jumper to the + side of the coil, and still no spark.....any suggestions?????

This car was running before the motor pull.

[john in KY]

Start by checking for 12v at the distributor and coil with the ign sw in the RUN position. If neither has voltage, then either the ign sw is funky or it is not receiving 12v (blown fuse). If the distributor is getting 12 volts, then problem is either bad points or condenser. From your posts, sounds like the coil is not receiving any voltage. This means either a blown fuse or a bad ign sw.

 

Voltage flows from the battery to the IGN SW where it branches off and flows to the coil, distributor and the starter solenoid (when the key is in the Start position). You just need to find where in the circuit the flow stops.

 

And for everything to work, there has to be a good ground somewhere to complete the circuits.

[Brat78]

Thanks for the reply. That helps a lot. I'll look into it.

[Dirk]

Does the new engine have the same dizzy as the last?

 

points dizzy is wired differently to electronic dizzy.