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dpd
MMT Addict
Joined: Thu May 07, 2009 10:25 am Posts: 714 Location: Thibodaux, LA
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Electrolysis Question
My neigbor has a nice little go devil boat and Gator Tail motor on it. Both are about a year old purchased brand new. I am either seeing signs of corrosion or electrolysis on both.
That rig has not seen any salt or brackish water, and he does wash it down every so often. I am suspecting electrolysis.
What is the proper way to test for electrolysis, and how do you stop it? It seems like if the boat had a postive current on it wouldn't that cause a major short? Where/how does electrolysis occur?
_________________ 16 x 48 Blanchard Bateau / 40 PD FPR Eat,Sleep, Fish, Hunt. Repeat.
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Thu Sep 03, 2009 9:01 am |
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coondik
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Re: Electrolysis Question
check to see if has a direct Ground going to the boat instead of the battery. may have a chafed "hot" wire somewhere in the circuit that is making contact with the hull.
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Thu Sep 03, 2009 9:05 am |
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dpd
MMT Addict
Joined: Thu May 07, 2009 10:25 am Posts: 714 Location: Thibodaux, LA
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Re: Electrolysis Question
_________________ 16 x 48 Blanchard Bateau / 40 PD FPR Eat,Sleep, Fish, Hunt. Repeat.
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Thu Sep 03, 2009 9:13 am |
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coondik
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Re: Electrolysis Question
a quick fix may be to just install a battery disconnect switch of some sort. that way all current will be stopped when the boat is not in use!
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Thu Sep 03, 2009 9:14 am |
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schrieverboy
MMT F.E.
Joined: Tue Jul 21, 2009 7:06 am Posts: 916 Location: South,La
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Re: Electrolysis Question
_________________ 1648 w/ a 36 pd fpr on dat biatch G-14 CLASSIFIED SKIFF ON DA WAY!! Never try to educate someone who resists knowledge at all costs.
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Thu Sep 03, 2009 9:24 am |
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dpd
MMT Addict
Joined: Thu May 07, 2009 10:25 am Posts: 714 Location: Thibodaux, LA
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Re: Electrolysis Question
He just called me from the marine supply store and is going the anode route.
_________________ 16 x 48 Blanchard Bateau / 40 PD FPR Eat,Sleep, Fish, Hunt. Repeat.
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Thu Sep 03, 2009 10:17 am |
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TXSHOCKWAVE
MMT Pro Member
Joined: Tue Jan 13, 2009 5:51 pm Posts: 295 Location: Karankawa Lake TX
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Re: Electrolysis Question
get a volt meter and place one terminal on the neg batt side. Then take the pos to the hull if you are picking up any current something is hooked up wrong.
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Thu Sep 03, 2009 6:00 pm |
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dead duk
MMT Pro Member
Joined: Thu Jun 25, 2009 10:45 am Posts: 147 Location: Longview,Texas
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Re: Electrolysis Question
Electrolysis will cause aluminum to become brittle over time as well as the corrosion issue. Will take a little while for that to happen, might want to check for chafing on your lighting wires as well.
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Thu Sep 03, 2009 8:11 pm |
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LaBirdman
MMT Pro Member
Joined: Tue Jan 13, 2009 7:02 pm Posts: 274 Location: Galliano, LA
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Re: Electrolysis Question
Carpet on the trailer bunks will also cause this
_________________ Freedom It Wasn't Free!!! It Was Won!!! Enjoy It!!! The more you try to teach a stupid person something the dumber you get!!!
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Thu Sep 03, 2009 9:22 pm |
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50fps
MMT 1000 Club
Joined: Tue Jan 13, 2009 6:42 pm Posts: 2377 Location: West Coast Wisconsin
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Re: Electrolysis Question
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Sat Sep 05, 2009 8:48 pm |
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DeathMetalDukk
MMT 1000 Club
Joined: Sat Jun 27, 2009 11:50 pm Posts: 3777 Location: Knotts Island, North Carolina.
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Re: Electrolysis Question
I've seen a lot of people around here that leave their boat over all the time run a direct ground through a round zinc bolted to the hull. They say it keeps it from corroding, but I dunno, I keep my sht in the yard.
_________________ Put yer face in the myrtles.
35 GTR chasing a 1650 Polarkrap.
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Mon Sep 07, 2009 8:17 pm |
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keys1222
MMT Pro Member
Joined: Fri Aug 21, 2009 12:42 pm Posts: 321 Location: Salina, KS
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Re: Electrolysis Question
so if im understanding right its better to run the ground to the battery?
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Thu Sep 10, 2009 9:52 pm |
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DeathMetalDukk
MMT 1000 Club
Joined: Sat Jun 27, 2009 11:50 pm Posts: 3777 Location: Knotts Island, North Carolina.
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Re: Electrolysis Question
I would, it's a lot less problems in my experience. Mine used to have everything grounded to the hull, and sht was always loose, I chased bad connections all the time.
_________________ Put yer face in the myrtles.
35 GTR chasing a 1650 Polarkrap.
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Sat Sep 12, 2009 6:15 am |
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dpd
MMT Addict
Joined: Thu May 07, 2009 10:25 am Posts: 714 Location: Thibodaux, LA
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Re: Electrolysis Question
I ground mine to the battery. Put a voltage meter on a bare spot on the hull and nothing.
My buddy that had the elec. problem just bought a Perko switch and when its not in use just turns it off. Checked the hull again with the meter and no more electrolysis. he was lucky to figure this out. In 6 months time this problem was starting to effect the hull.
_________________ 16 x 48 Blanchard Bateau / 40 PD FPR Eat,Sleep, Fish, Hunt. Repeat.
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Mon Sep 14, 2009 12:33 pm |
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Matt
MMT Pro Member
Joined: Tue Jan 13, 2009 5:39 pm Posts: 190 Location: Chauvin,La.
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Re: Electrolysis Question
Im no elecrical engineer but, your solenoid on your starter, voltage regulator and coil on your engine are all grounded to the block. The block is bolted to the frame which isn't isolated from one another. The whole engine is then bolted to the hull. Therefore the Negative battery terminal is grounded to the hull? I believe a circuit breaker would help. I have also read that the treated lumber will cause this.
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Mon Sep 14, 2009 7:40 pm |
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DeathMetalDukk
MMT 1000 Club
Joined: Sat Jun 27, 2009 11:50 pm Posts: 3777 Location: Knotts Island, North Carolina.
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Re: Electrolysis Question
_________________ Put yer face in the myrtles.
35 GTR chasing a 1650 Polarkrap.
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Mon Sep 14, 2009 9:24 pm |
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