DC Grounding to Engine Block

[JohnV8r]

Guys,

I have built a custom battery box and am in the process of installing it between the engines to dampen roll per Capt Patrick's building tips. The battery box contains four Group 31 batteries that comprise two battery banks. I have discovered that the original DC wiring includes one grounding wire from the batteries on the outside/gunnel side of each engine and a single grounding wire on the inside/companionway of each engine that connects the engine blocks together. Since I am moving the batteries between the engines, I would prefer to connect the grounding wire from the two batteries to each engine block on the inside/companionway side of the engine blocks near where the grounding wire that connects the two engine blocks together connects to each engine block.

My question: Is there any reason why I should not have the ground connections near each other on the inside/companionway side of the engine block or do I need to keep the ground from the batteries connected to the original outside position on the engine blocks.

Thanks in advance.

JohnV8r

[Stephan]

John-
I made the same battery move 2 seasons ago.
My grounds ran to the Port sides of the engines (inboard side of the Starboard engine and outboard side of the Port Engine - Crusader 454s). I stayed with those grounding points. I do not believe there would have been any difference if I had moved the Port engine's grounding point to the inside.
Good luck-
Stephan

[mike ohlstein]

A big hunk 'o iron is a big hunk 'o iron. Ground it anywhere that isn't isolated from the rest of the engine by a piece 'o rubber. Make sure that your new location is clean and free of paint. Wire brush, sandpaper, brake cleaner. Use a good marine electrical grease on your newly exposed hunk 'o iron, so it doesn't corrode. NO-OX-ID A-SPECIAL Electrical Grade is a good one.

https://www.amazon.com/NO-OX-ID-Special ... s=NO-OX-ID

[JohnV8r]

Thanks Mike! I just ordered the grease.