Today while cleaning my work bench that pesky wire was staring me in the face. Bored of cleaning, and with a little ADHD going on, I decided to see why it would not pass current. During the external examination I noticed where it had been chafing on something and was down to bare copper. D'oh...!


This looks bad, and if it was a positive wire could have meant a dead short. Unfortunately this was not the cause. It was just the result of a vibrating engine and improper wire support. But, but, but boats don't vibrate...... Right.......? Wrong!!