I've been overhauling our DC system and one issue has been nagging me for a while now. Our DC system is grounded on the engine
(as usual), but we have a plastic shaft saver between the gearbox
and the flange on the shaft. This means that the engine
is isolated from the shaft and propeller
and the path to ground doesn't go out into the water
. We had a mechanic
looking at the engine in the fall and when I asked him about it he said it wasn't a big deal. Our electrical
loads are pretty modest, but I keep wondering if this could be causing any problems.