DBleil89

I am rewiring alot of my boat, and adding a factory tester switch to my throttle. I went with the factory one so its a nice clean look. I have the mercruiser 4000 controller. I bought the switch part number 87-19674A 07. It fits and installed very easily. I went to wire it up and it's not how I would expect it to be. The switch is a normally open switch. It closes it's contacts in the off position. From what I have found, this way is for an outboard. It shorts the ignition signal to ground shutting the boat down. What I was expecting was a normally closed switch and just switching the purple wire to my coil. I don't want to short my 12v igniting wire through the switch. Unless this is normal then I will. My question is does anyone know the correct part number to get that same switch in a normally closed position? Or is shorting the 12v the common practice?

I realize I can make this switch work with adding a relay and rewiring. I will do that if need be, but I would have less parts to fail. Also be more like the way it was from the factory for later troubleshooting. Thanks in advance.

Bondo

Ayuh,.... Can't ya just roll the switch over 180° in it's mount, so's it's normally closed,..??

Unlimited jd

iTrader: (5)

Wire it to the ground side of the coil.