E-Bike Kit To Boat Motor Conversion!
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- Опубликовано: 30 сен 2024
- This odd little project has really grabbed my attention. After tracking down several old boat motors that turned out to be too far gone to use, I found a pretty clean Sears 5.0 horsepower outboard that had motor head problems.
The seller couldn't get it to run and I just wanted it for the shell. A deal was struck and I removed the powerhead with a grinder. That was fun.
This video shows the mounting of a 2,000 watt 48v e-bike kit from Amazon.
amzn.to/464gduH
Stay tuned for coming videos where we actually put this build on the water!
Thanks for taking a look.
I built a very similar electric outboard using that same brushless motor and controller kit. I mounted my motor separate from the drive and used a pair of cog belts running in parallel between the motor shaft and the lower unit coupling. That way I can change out cog gears to get different gear ratios. I tried that same motor coupling that you are using and it didn't last very long at all. I ended up using a solid coupling. I power it with four 12 volt 75 amp hour AGM batteries made for powering a Ryobi electric riding mower. I added a 48 volt to 12 volt buck converter to run a thermostatically controlled cooling fan. I have 3 seasons of use on mine.
Awesome! I thought about using a belt a lot. Even sketched out how to build it that way but then opted to try the couplers. Great to hear it has worked out well for you. On the next motor build I did I used a larger LoveJoy coupler that seems to be holding okay but belts are probably a better solution. Thanks for your comments!
This might be a dumb question but does that watercooling on the original motor in some way lubricate or cool the driveshaft or gears? Or to ask it in a different way: when you run the motor on land, is there a danger of wear or overheating of the driveshaft etc?
Not a dumb question. Heat is an issue with boat motors. The motor I used for this build is an e-bike motor that was designed to be air cooled. This outboard motor really didn't have much of a water cooling system. It kind of pulled up some water to gently cool the lower shaft a little bit; not like typical outboards that have true impellers that pull water up, circulate, and then expel it. I wouldn't run it for a long time in open air but it isn't much of an issue with this build.
Have you tested on the water yet? I'm looking into doing this myself. I'm mainly curious how long will the battery last?
I did some initial testing and it was promising. The weak point was the LoveJoy coupler was too small and broke apart. I moved onto a bigger motor build with a heavier coupler.
How do you do reverse with a e-bike motor???
@@hughvanduyn6482 The manual comes with the wiring diagram/instructions to install a switch or set it to whichever direction is desired.
@@drez20001
Do you have any video of the water test?
How do you cool the motor?
This build was air cooled. It was a beta test project to see how best to build larger motors. Thanks for the question.