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Bonding Wire
- tonyiiiafl
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Bonding Wire
Postby tonyiiiafl » June 13th, 2020, 8:08 am
- bud37
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Re: Bonding Wire
Postby bud37 » June 13th, 2020, 9:46 am
You are correct in thinking the bonding system needs to connect all the underwater metals on your boat together as one, any break in that system will make it ineffective.
Is the broken wiring in an area where people would step while working down there ?

- tonyiiiafl
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Re: Bonding Wire
Postby tonyiiiafl » June 13th, 2020, 10:38 am
- bud37
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Re: Bonding Wire
Postby bud37 » June 13th, 2020, 11:49 am
There definitely needs to be some clean up , that is a fair bit of corrosion on the packing nut/shaft and all those connectors on that small buss bar. The plate in the hull appears to be a white glass backing plate, almost looks like starboard ?
Tony , Do you have a diver, is there a hull anode mounted there ?
I can only suggest what I would do if it were mine.......clean all the corrosion, stuffing box etc , find where those loose wires connect and reconnect them with new ends, check the other side and clean if necessary, then work back thru the boat to see if there are any other red flags/ broken wires or corrosion at the bonding connections.
After all that, check the bonding system as a whole to make sure it is working properly,.....there is a lot of expensive metal underwater on your boat.

- tonyiiiafl
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Re: Bonding Wire
Postby tonyiiiafl » June 13th, 2020, 4:05 pm
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Re: Bonding Wire
Postby Viper » June 13th, 2020, 9:47 pm
Salt water sure does present a challenge with hardware. It would be a lot of work but cleaning the "green death" would go a long way to extending longevity. A cordless drill with a wire brush bit really helps, then just spray the fittings with a clear lacquer or a spray lubricant to keep them from corroding again. Do the same for the wiring bus bars and terminal connectors. After you clean them, you can also spray or paint with liquid electrical tape. Do a few areas evey year and eventually you'll have everything cleaned up and protected.
- tonyiiiafl
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Re: Bonding Wire
Postby tonyiiiafl » June 14th, 2020, 8:49 am
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Re: Bonding Wire
Postby Viper » June 14th, 2020, 10:10 am
If you treat the new connectors after you install them, you won't have to do it again for a long time or ever depending on what you use. Heck even spraying the clean connections with a battery terminal protectant spray will help immensely, which you should have around to use on your battery terminals anyway. When you fasten the wire back to its connecting point, screw the terminal connector in so that the end of the wire going through the connector is facing up. This is the normal way of doing it because it works better mechanically but there are occasions when it works best mounted upside down. Facing the wire end up though allows you easier access to treat/protect the end of the wire at the connector also and prevent corrosion from wicking up the wire internally. Internal corrosion can cause all kinds of hard to trace gremlins because you can't see the condition of the wire under the insulation, and the assumption is that it must be okay because it's covered.....not.
- tonyiiiafl
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Re: Bonding Wire
Postby tonyiiiafl » June 18th, 2020, 8:36 pm
- bud37
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Re: Bonding Wire
Postby bud37 » June 18th, 2020, 9:05 pm

I would recommend against soldering connections on a boat.....not because of the torch but the joint itself can be brittle.

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