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Old Jan 14, 2013, 06:37 AM
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Cocoa, Florida
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Hobby King tunnel hull boat

I finally have both a motor and speed controller in the boat that are holding up.
Now, the flex shaft in the dummy outboard has broken near the center.
I have pulled and greased the shaft with Prather marine grease after each outing, so a lack of lube wasn't the issue.
Can anyone tell me where I can obtain some of that (slightly smaller than) 1/8" diameter flex cable?
Lacking that, can you point me to a link for those aftermarket aluminum outboard lower units that the racers use?
I'm pretty sure those items will cost more than I want to put into this "money pit" boat, but it will be worth a look.
NOTE: I did find the outboard "leg" on the Pro Boats site, but it is for a larger boat than I have.
My motor has a 3mm shaft.
Thanks!
Bob
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Last edited by bmwbob; Jan 14, 2013 at 06:59 AM. Reason: Added note about boat and motor size
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Old Jan 14, 2013, 08:32 AM
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Canada, ON, Whitby
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Something like this is worth looking at too:

http://www.offshoreelectrics.com/pro...prod=OSE-80980

I believe there's a guy on here running one of these with good success on the HK Hornet tunnel.
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Old Jan 14, 2013, 09:32 AM
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Cocoa, Florida
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Flex cable size needed

That mini-outboard looks great!
Too bad I already have a motor!
I just measured the diameter of my broken flex cable .
It is 0.12", or 3 mm.
The length is approximately 4.75".
Bob
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Old Jan 14, 2013, 10:49 AM
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I'm not sure where you might find replacement flexes for that lower unit. I think that's the reason people have gone to other lower units instead.
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Old Jan 14, 2013, 10:58 AM
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Cocoa, Florida
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No surprise!

That would be about par for my experience with products from this company.
I haven't had any trouble with the LiPo batteries, balance charge or R/C equipment I got from Hobby King, but the boat electronics, speed control, motors, etc. have been pure JUNK!!!
Bob
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Old Jan 14, 2013, 01:01 PM
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Quote:
Originally Posted by bmwbob View Post
That would be about par for my experience with products from this company.
I haven't had any trouble with the LiPo batteries, balance charge or R/C equipment I got from Hobby King, but the boat electronics, speed control, motors, etc. have been pure JUNK!!!
Bob
The cheap stock ESC's you get with most chinese boats tend to be pretty useless, but some of HK's stuff can be pretty darn good. I have 2 Seaking 35A's and they have both been fantastic for my small boats. The motor I purchased from them has been great as well. Hobbyking tends to re-brand some things, and I suspect they have no control over what the original company supplies with the kit. The parts they sell separately tend to be generally good in my experience anyway. I think the key is to pay attention to the reviews.
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Old Jan 14, 2013, 01:19 PM
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Cocoa, Florida
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Sea King parts

Yes, I have a Sea King 90 controller now, as well as a Sea King motor (don't recall the numbers).
They are both fine, but I got them from Hobby Wing, not Hobby King.
Bob
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Last edited by bmwbob; Jan 14, 2013 at 01:20 PM. Reason: Typo
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Old Jan 14, 2013, 03:10 PM
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Also, for your flex problem, you should be able to find a 3mm flex cable somewhere. (Hobbyking, EBay, what have you.) It will probably be longer than you need, but you might be able to get 2 out of it if you cut it in half and solder your own stubs on. Just a thought.
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Old Jan 14, 2013, 03:28 PM
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Cocoa, Florida
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3mm flex cable

Quote:
Originally Posted by Firehawk989 View Post
Also, for your flex problem, you should be able to find a 3mm flex cable somewhere. (Hobbyking, EBay, what have you.) It will probably be longer than you need, but you might be able to get 2 out of it if you cut it in half and solder your own stubs on. Just a thought.
That was my intention.
I have found .098" and .15"and larger flex, but no .12" (3mm) as yet.
Bob
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Old Jan 14, 2013, 03:48 PM
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Outboards tend to use flex cables with square ends on both ends that fit into the stub shaft and motor coupler so it's harder to fit a generic cable into them.
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Old Jan 14, 2013, 04:30 PM
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United Kingdom, England, Southsea
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just a thought , weve a company in the uk called speedy cables , they make speedometer cables for classic / vintage vehicles to order or from pattern , i would imagine there will be similar companies on your side of the pond too ?
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Old Jan 14, 2013, 05:34 PM
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Vancouver, BC
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Here's a 3mm flex from Hobbyking:

http://www.hobbyking.com/hobbyking/s...Magic_Cat.html

Edit: Ah, didn't notice the backorder. But at least they do exist.

Double Edit: Even better: http://www.ebay.com/itm/3mm-Dia-Spri...item1e75194ebd
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Last edited by Firehawk989; Jan 14, 2013 at 05:40 PM. Reason: Added more info.
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Old Jan 14, 2013, 07:21 PM
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Cocoa, Florida
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Cable is round

Quote:
Originally Posted by wparsons View Post
Outboards tend to use flex cables with square ends on both ends that fit into the stub shaft and motor coupler so it's harder to fit a generic cable into them.
The cable is just round. They soldered the motor coupler end solid, then filed a flat on it for the setscrew.
The other end is soldered into the hollow end of the prop driver.
Bob
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Old Jan 14, 2013, 07:28 PM
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Cocoa, Florida
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Goal!!!!

Quote:
Originally Posted by Firehawk989 View Post
Here's a 3mm flex from Hobbyking:

http://www.hobbyking.com/hobbyking/s...Magic_Cat.html

Edit: Ah, didn't notice the backorder. But at least they do exist.

Double Edit: Even better: http://www.ebay.com/itm/3mm-Dia-Spri...item1e75194ebd
Thanks!
I just ordered it.
Bob
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Old Jan 14, 2013, 07:54 PM
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Originally Posted by bmwbob View Post
Thanks!
I just ordered it.
Bob
No prob! At 39" long, you should be able to make a few spares.
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