This will probably open a can of worms.
We had a very experienced (older) maintenance bloke come over to the Island to fix our generator and he commented on how much rust was evident on the outside. It sits out in the weather and considering lack of proper maintenance it receives, the 23,000 + hours running time is amazing.
He also commented that the old American cars that were positively earthed did not rust as much as negatively earthed vehicles from the rest of the world. How is this so? There must be a scientific answer for steel and electricity to make rust. I wish I studied chemistry at high school instead of just attending class.
If this is true, I can understand why they changed to negative earth because if a car did not rust away, they would not sell more new cars
Reply With Quote