|07-12-2019 05:23 PM|
|07-12-2019 08:29 AM|
|Captain Donn||I have never heard of electrolysis caused by 12 volts. If you have a onboard battery charger for trolling motor batteries, there could bestray 110v (in the water) at the place you moor your boat. Also check for correct polarity (hot/neutral) on your 110v wiring. Hope this helps.|
|07-10-2019 01:53 AM|
Glad it's just crevice corrosion, btw I think you took your voltage measurement on the painted hull, if you find a bare aluminum spot you will indeed see a full 12v- that's normal though due to motor grounding.
Its when the hull is used as a return due to faulty wiring , thats when you run into problems, the difference of potential sacrifices the aluminum. Since all your wiring checks out, you don't have to worry about that. As long as it's just paint bubbles and there's no powder under the paint, just solid aluminum, you'll be fine from a structural standpoint.
|07-09-2019 02:42 PM|
|DW||If you can, replace the rivets. I am not a riveter so maybe someone will chime in on the topic. I donít think it is hard but you need access to both sides so you will need to remove a floor board.|
|07-09-2019 01:13 PM|
Just had to be sure though, as i have never seen the white corrosion along the splashrail before (gap between the hull) up until this season.
The paint bubbling ill learn to live with as its already 8 years old, and its difficult to say whether its from corrosion or crappy prep.
What would you do about the two leaky rivets? Replace? Seal with a compound like Gluvit?
Still had continuity with the hull, but if i measured voltage, it was 0.02-0.05. So i dont think its an issue. A another member mentioned the motor wiring harness still being connected, maybe thats why i had a positive reading.
|07-09-2019 01:04 PM|
|07-08-2019 05:16 PM|
|Shellback||So we know outboards are grounded to the hull, and I believe you disconnected the heavy gauge wires from the outboard to the battery to eliminate that ground. Did you also disconnect the wire harness from the engine? I'm sure there would be a ground wire in there also.|
|07-08-2019 01:32 PM|
|07-08-2019 11:03 AM|
Thatís pretty harsh. Careful inspection of all makes of boats that are 8 years old would reveal a lot of aluminum boats with some crevice corrosion. It goes along with dock rash that accumulates over the years no matter how careful the owner. Leaking rivets is a risk that goes with riveted boats. Everyone that buys one should do so with open eyes.
The OP can replace the fuse panel cable and everything will be ok.
|07-07-2019 10:04 PM|
If this was me, 100% honest now, this boat would get traded off. I have enough real problems in my life that require my full attention. This is an unnecessary thorn in my side that can be remedied by a trip to the boat dealer.
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