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Newbie Motor Questions

1051 Views 4 Replies 2 Participants Last post by  theonetruerat
Ok, I've been lurking for a bit and I've been doing a ton of reading but I'm now stuck.

I have the bug to build an electric outboard for a project solar pontoon. The donor outboard is a 55 hp mercury with a thrown rod.

I'm Eyeballing two motors on ebay pretty hard. But, No amount of googling has provided me with any specs for one of them.

http://www.ebay.com/itm/GE-24-Volt-...ash=item21034b6580:g:-vkAAOSw4HVWDGVl&vxp=mtr


http://www.ebay.com/itm/D-and-D-DC-...286631?hash=item2105ec33e7:g:SsEAAOSw4HVWDF~h

I'm hoping that someone here is a little more familiar and can tell me if I should pull the trigger or keep looking.

Thanks
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Ok, I've been lurking for a bit and I've been doing a ton of reading but I'm now stuck.

I have the bug to build an electric outboard for a project solar pontoon. The donor outboard is a 55 hp mercury with a thrown rod.

I'm Eyeballing two motors on ebay pretty hard. But, No amount of googling has provided me with any specs for one of them.

http://www.ebay.com/itm/GE-24-Volt-...ash=item21034b6580:g:-vkAAOSw4HVWDGVl&vxp=mtr


http://www.ebay.com/itm/D-and-D-DC-...286631?hash=item2105ec33e7:g:SsEAAOSw4HVWDF~h

I'm hoping that someone here is a little more familiar and can tell me if I should pull the trigger or keep looking.

Thanks
Hi the,

I'd pick the second one, D&D, if I were you. You'll have a couple performance points from the description. Looks new. Good price.

You'll not get 55hp, at least not for long. But from the little I know about hull speed, the 5 or 6 hp will push it around.

Regards,

major
 

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Discussion Starter · #3 ·
Hi the,

I'd pick the second one, D&D, if I were you. You'll have a couple performance points from the description. Looks new. Good price.

You'll not get 55hp, at least not for long. But from the little I know about hull speed, the 5 or 6 hp will push it around.

Regards,

major
I've been leaning that way. Mostly because the specs are right there.

I was intrigued by the first motor having 8 brushes though.
 

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Bigger (more) brushes wouldn't yield advantage on marine propulsion unless you're drag racing. GE makes a darn good motor and for the same money you'd get more bang for the buck with the GE but I doubt it's needed for the boat.

Maybe the red paint is new but the GE is used. Also appears to be a 2 terminal pump motor.... non-reversible. And I bet you'll want reverse on the boat.
 

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Discussion Starter · #5 ·
Bigger (more) brushes wouldn't yield advantage on marine propulsion unless you're drag racing. GE makes a darn good motor and for the same money you'd get more bang for the buck with the GE but I doubt it's needed for the boat.

Maybe the red paint is new but the GE is used. Also appears to be a 2 terminal pump motor.... non-reversible. And I bet you'll want reverse on the boat.
Thanks, I'm sure I'll have more questions as this project progresses.

Gotta sell a couple of body parts on ebay before I can afford the motor. Hopefully it wont sell before this project is funded.
 
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