[purplewg]

I did search here but haven't found my issue so I am looking for help. Again I am working on my buddies 30 Model A. He said the horn wasn't working. I did some checking and got down to the horn itself. When I took it apart I found someone had been there before me and one wire was broken at the terminal on the inside coming from the motor. I soldered new wires on, cleaned and oiled. Thought that would do it. When I went to mount the horn back on the car the mounting bolt sparked. I took it back apart and made sure neither wire was grounded to the frame of the horn. I then just took motor and hooked it to the hot wire coming from the generator and grounded the other side with an jumper. It ran just fine. I put it back together and tested like this one more time and it worked. When mounting it, it sparked again. I built some insulators to isolate the mounting screws and it works just fine with the button. What am I doing wrong? When I took the horn off the mounts were all rusty and just fell apart. Are there supposed to be insulators between the horn and the mount? Thanks in advance.