Wire drive help please

[SJFE]

Wire drive guys I need some help here. I run a .78 wire in the Jolly cat. The other night on the first test run the set screws on the wire where not set tight enough. They spun loose heating up wire and coupler. I snuged them up and the boat ran fine all night. When I got home I began the break down and service process as I always do. I turnd out the wire set screws and attempted to pull it. It would not budge. I completely removed the set screws and spun the wire around inside the coupler. It was snug @ first the spun a little more free. I worked it a bit but can only get it to move about an 8th inch in or out of the coupler. I'm completely stumped on this one. I don't want to ruin the wire due to the fact I can't even order one untill next week. ANY suggestions on how to save this drive would be great.
Thank you,
Tom G

[Mich. Maniac]

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[Doozie870]

SJ I have had solid shafts stick in flex couplers before, what I would do after all else failed,was clamp the prop shaft in a cordless drill chuck and twist the crap out of it on the highest rpm, it would always come out, but somtimes not reusable

[Fluid]

This means that the wire has galled the aluminum so the coupler is probably not reusable. This is why I prefer the Octura flexhex couplers. From an engineering standpoint a collet is superior to a set screw coupler, and in fact many set screw couplers are very poorly designed anyway.

This does little to help you now though. Doozie's suggestion will work to remove the wire, but who knows if the coupler will be usable. Too, the wire may have overheated and lost strength - if so it will probably break in the near future.



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[SJFE]

Thank you gentelmen . Fluid I do agree with regards to set screw couplers not being perfect. I have had problems trying to replace the factory coupler with a couple I have ordered from the store. What's dissapointing is the one I received with the boat from Toysport was nearly perfect. One of the main reasons I had the rotor shaft turned down was to use that coupler. I will scrap the wire & coupler. My problem now is I don't think octura makes a .78 flex hex. I only see a .62 in the store. Now I need to figure out if I can swap out the wire.
Thank you both again.
Tom

[Fluid]

Octura only makes the .062" flexhex. I bore mine out to 0.078" (as you know) but it requires care and the right tools. I am not comfortable with the 1/16" wire on hot 4S oval setups. Heck, it used to be good for 18-cell SAW boats!


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[SJFE]

I will look into having it done for me. Thanks again