Re: [PSUBS-MAILIST] re-wiring trolling motors?

["Herve Jaubert" <caribsub@coqui.net>]

Alec,
Where did you put the sacrificial anode?
When you purchase a Salt water motor, the anode is usually on the shaft, I
mean on the column that goes through  the motor body.
But you have to control with an ohm meter that you read "0" between the
sacrificial anode and the propeller AXLE ( I said shaft in my previous
message, sorry).
All motors should have continuity between the anode and the Stainless steel
axle prop.
I noticed that only 30 % of the motors have continuity, that means that most
of the owner of salt water motors think their motor is protected against
galvanic corrosion when they are not.
It is because the body of the motor is in 3 parts and when they are
assembled, probably some coatings make a break in the continuity between the
body parts.
That is why i put an additional anode, a small one , on the little fin of
the motor, that way all the motor is protected, axle, bearings, body, and
shaft.
It is actually simpler than to rewire the motor. (disassembling required)
This procedure is important, otherwise under frequent use your motor will be
galvanic corroded.
----- Original Message -----
From: Alec Smyth <Asmyth@changepoint.com>
To: <personal_submersibles@psubs.org>
Sent: Saturday, November 25, 2000 10:55 AM
Subject: [PSUBS-MAILIST] re-wiring trolling motors?


> Herve,
>
> May I ask you to elaborate on that tip about galvanic protection of the
> shaft? I just put a sacrificial anode near it, but didn't rewire anything.
>
> thanks,
>
> -Alec Smyth
>
>
>
> -----Original Message-----
> From: Herve Jaubert
> To: personal_submersibles@psubs.org
> Sent: 11/24/00 10:44 PM
> Subject: Re: [PSUBS-MAILIST] Fuel cells
>
> Hi Pat,
> Thanks for the link.
> I first used Minn Kota Trolling motors for my subs, I am using now Motor
> Guide, more powerfull and more reliable, pressure compensated installed,
> ...........and low cost, though all trolling motors even the sea water
> models must be "rewired" since the shaft is rarely galvanic corrosion
> protected due to poor continuity between the cathode and the body.
> regards
> Herve Jaubert
> ----- Original Message -----
> From: Captain Nemo <vulcania@interpac.net>
> To: <personal_submersibles@psubs.org>
> Sent: Friday, November 24, 2000 10:55 AM
> Subject: Re: [PSUBS-MAILIST] Fuel cells
>
>
> >
> > ----- Original Message -----
> > From: "Herve Jaubert" <caribsub@coqui.net>
> > To: <personal_submersibles@psubs.org>
> > Sent: Friday, November 24, 2000 11:25 PM
> > Subject: Re: [PSUBS-MAILIST] Fuel cells
> >
> >
> > > here is an interesting link on a update fuel cells technology
> > > http://216.51.18.233/fcnews.html
> > >
> > > Herve Jaubert
> > > ----- Original Message -----
> > > From: Captain Nemo <vulcania@interpac.net>
> > > To: <personal_submersibles@psubs.org>
> > > Sent: Saturday, November 11, 2000 4:39 AM
> > > Subject: Re: [PSUBS-MAILIST] Fuel cells
> > >
> >
> >
> > Thanks a lot, Herve!    I'll put it in my "favorites" file and check
> it
> out
> > tonight.
> >
> > BTW: while we're talking about electric propulsion, I was going to
> post
> > this: a while ago Alec Smythe mentioned a source for Minn Kota and
> > Motorguide trolling motors and parts that has proven to be all he said
> it
> > was.  Jack C. Henson  in Alba, Texas is very knowledgeable and goes
> out of
> > his way to help.  His URL is:
> >
> > http://www.trollingmotorparts.com
> >
> > Everything from components to complete motors, and then some.
> >
> > VBR,
> >
> > Pat
> >
> >
> >
> >
>
>