View Full Version : Poorly re-wired et39?

rick carpenter
05-03-2020, 04:12 PM
I have a motorguide et39 that the lower housing shaft boss got shattered. I got the new one in and studied the wiring to get familiar, but then labeled each connected pair with different color electrical tape. I know I got the right wires re-connected but I don't know if I did a good job. We have an older 2019 12v d/c marine battery. I had it charged on our new Noco Genius5 charger til the green light was flashing (so just under 100%). This combo took two people in a 12' suntracker about 100yds before it started to slow down. The fishing hole was further on, and we barely made it 150yds back with a tailwind.

I'm trying to narrow down whether it's the battery or my repair. Would poorly connected crimp connections not work at all or simply degrade the performance? I know very little about dc so how do I test the wires and at what setting on my dvm?


05-04-2020, 07:30 AM
I don't like crimp connections especially for something under water! solder and shrink tube is always better! look for shrink tube with sealant inside, that will make the repair waterproof!

rick carpenter
05-04-2020, 12:11 PM
Thanks raddksn,

I didn't make it clear that all of my crimp connections were in the upper control unit. They replaced a combination of crimps and wire nuts from the factory. Those wires all had to be cut to replace the bottom housing. Rather than replace the wire nuts, I made them all crimps. I'm interested in what resistance those wires should have to see if that may indicate poor connections and if the wires are still good.