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post #7 of Old 08-29-2009
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I'd suggest drawing a schematic for the boat's current wiring, and then start updating. Start drawing the charging system/engine/house main supplies, and then track down the smaller circuit connections. Check wire condition as well as routing. Consider revising the wiring to properly sized and serviced ground and positive busses rather than opportunistic attachments to whatever. Only one sufficiently large ground cable to the engine is a good idea in my amateur opinion, not ground wires attached to the nearest nuts and bolts on the engine. It's a bigger job than it seems, but pays big dividends in reliability and peace of mind.
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