Hello all, Last week there was a good exchange on ground wires, and it came at a good time as I was having issues with the ground wire leading from my 12 volt panel, and I ended up grounding all the batteries, and the panel to a single spot in the engine compartment and running 1 ground to the engine. Overall, it is much cleaner than the multiple wires that had been attached to the engine before. Now to the issue... I found 2 additional ground wires, one green and one black, both about 8 gauge wire that were attached to the engine. The wires then run into an electrical tape wrapped wiring harness.We have a Yanmar 3JH2E, and the manual is not very helpful identifying the wires. They wires are corroded on the inside and should be replaced. Before I go trying to tear off the tape and track where the wires are going, does anyone have a good idea what they might be for?
I am thinking that one might be for the alternator, though the wires leading to it have been painted all the same color by someone who apparently overhauled the engine so there's some temporary issue identifying it. I have no idea what the other one might be, other than I keep thinking about the fuel tank ground (but the wire seems way oversized for such a purpose). Any ideas before I tear the rest of the way into this? Thank you! Bruce Whitmore 1994 C&C 37/40+ "Astralis"
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