Yes, be careful. Dissimilar metals in a water environment especially salt water can be asking for trouble. This problem was minimized on diesel engines like my old Westerbeke by having a sacrificial zinc inserted in the heat exchanger where a copper was used. Which was another item to maintain. Though heat transfer grease mentioned should solve that problem by isolating the metals from each other. I would just make sure they stay isolated. If they start to touch a leak could develop and that could ruin your day.
Capt. Mike
From: Tom <boat_works@yahoo.com>
To: electricboats@yahoogroups.com
Sent: Friday, December 2, 2011 5:15 PM
Subject: Re: [Electric Boats] Cooling motors
To: electricboats@yahoogroups.com
Sent: Friday, December 2, 2011 5:15 PM
Subject: Re: [Electric Boats] Cooling motors
Any concerns about bolting copper directly to aluminum?
Many years ago I had a bronze (copper alloy) clevis pin in an aluminum boom. The boom eroded around the pin in a few years.
Perhaps the alloys involved in this application are more compatible.
-Tom
--- In electricboats@yahoogroups.com, "Eric" <ewdysar@...> wrote:
>
> Hi Bill,
>
> You should contact James at Propusion Marine in Santa Barbara. He has designed, built and improved a "bolt on" water cooling adapter for the ME09xx motors. He has produced a unit that has shown consistant documentable results.
>
> Of course, you can take the time and money to fabricate your own version of his system, but then I would expect that your results may vary....
>
> Fair winds,
> Eric
> Marina del Rey, CA
>
> --- In electricboats@yahoogroups.com, Bill Heintz <bheintz@> wrote:
> >
> > I have a Motenergy ME0907 (x Mars Electric ME0201013001) PMAC motor 48v that I would like to Water Cool.
> >
> > Does anyone cave any experience with that? Photos?
> >
> > Initially I thought a coil of thermally conductive plastic tubing wrapped around the stator might work. But then I worried about the lines sweating condensate on to the stator . . .
> >
> > Since I'm not great at re-inventing the wheel, I thought I should ask the experts here first. :)
> >
> > Thanks
> >
> > Bill
> >
>
Many years ago I had a bronze (copper alloy) clevis pin in an aluminum boom. The boom eroded around the pin in a few years.
Perhaps the alloys involved in this application are more compatible.
-Tom
--- In electricboats@yahoogroups.com, "Eric" <ewdysar@...> wrote:
>
> Hi Bill,
>
> You should contact James at Propusion Marine in Santa Barbara. He has designed, built and improved a "bolt on" water cooling adapter for the ME09xx motors. He has produced a unit that has shown consistant documentable results.
>
> Of course, you can take the time and money to fabricate your own version of his system, but then I would expect that your results may vary....
>
> Fair winds,
> Eric
> Marina del Rey, CA
>
> --- In electricboats@yahoogroups.com, Bill Heintz <bheintz@> wrote:
> >
> > I have a Motenergy ME0907 (x Mars Electric ME0201013001) PMAC motor 48v that I would like to Water Cool.
> >
> > Does anyone cave any experience with that? Photos?
> >
> > Initially I thought a coil of thermally conductive plastic tubing wrapped around the stator might work. But then I worried about the lines sweating condensate on to the stator . . .
> >
> > Since I'm not great at re-inventing the wheel, I thought I should ask the experts here first. :)
> >
> > Thanks
> >
> > Bill
> >
>
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