Electrical Problem

[dragonflyerthom]

Well

Yesterday I went out to start my RAF when it just partially turned over and blew a 25 amp fuse. I changed it out and as soon as I turned on the master switch and then the key it blew the second one. I had checked all of my wires during my walk around and thought that could be the problem. I checked them again. Replaced the third and my last fuse. This one blew also.

This morning I removed my instrument panel and disconnected the black and blue wire on my starter. I looked the back of the panel really good but didn't see anything that just jumped out at me. I had purchased another box of fuses so I replace it again. I activated the master again turned the key and nothing happened. I remembered the black and blue power wires. As I touched them to the starter pole I heard the fuel pumps activate. I reattached the black and blue wire. The fuse held this time.

Any one have any idea as to what happened to keep blowing fuses. I have the 2.2 Sub engine that is carbed. I believe it is a 95 year engine.:help:

[rgraffeo]

Thom,
Wish I could help but maybe you have a wire that has the insulation cut & is going to ground. Its something simple, my wifes car kept blowing fuses found a penny in the cigar lighter plug.

I re-wired my RAF a few years ago. Instead of using 2 small wires for the starter, I ran a seperate 10 gauge wire. Dolfin told me 2-14 gauge wires were not enough to run the starter & fuel pump together. I used the 2 wires that went to the starter to run each of my fuel pumps. I had ran the wires through the keel as RAF suggested but ran them along the cabin floor under the keel to protect them.

I should have a copy of my wire setup that I could send you.

[enewbold]

Any one have any idea as to what happened to keep blowing fuses. I have the 2.2 Sub engine that is carbed.Good morning, Thom. The only thing I can add to the discussion would be the possibility of a stray washer or nut that might have been floating around and managed to short something out. This happened on my friend's gyro, giving us intermittent electrical problems that drove us nuts 'til we found a danged washer that was bouncing around his instrument pod.