Ok, I am trying out the Sullivan Composite pushrods for the first time. They are flexible but filled with carbon fibers for weight and strength, etc.
I have read that with the solid CF rods, it is good to tap and epoxy or CA the threaded rod into them. But with these, they are soft like nyrods, enough to self tap the threaded rods into them with a drill. I threaded then rod ends into the pushrods a good 1". My question is simple. Do I need to add epoxy or CA to the threads before installing them into the pushrods? Or is the self tapping enough for this design?

I have to say, they are in there really good, I can't see how they would come out without stripping the servo gears first.

Patriot

Darrol's site has some info which might be useful to you :

http:\\www.darrolcady.com\

hmmmm...... doesn't really seem to addres the Sullivan brand of N-rod cf filled type. They are differant than the solid stiff CF pushrods, which is what I am wondering about. From what I can tell, they can be self tapped with the rod ends and installed that way without the use of epoxy or CA, just like the Gold-N-Rod design.

Patriot

Patriot:
If they're that tight they would not likely need to be CA.d but why not for the time it takes to make sure they don't split. The reason for the carbon fibre is so they don't expand and contract like the plastic ones do, and change the pushrod length.

This is true, they are basically Gol-N-Rods filled with CF, ,So they are Nylon with a twist. Apparently the level of CF in them is low enough that they don't give any RF interference, so I can run my antenna inside the fuse. They are soft like nylon, so I know they won't split like a stiff cf rod. They are already installed, and I didn't think of this until after the fact. I am afraid i am going to damaged them if I try to take them apart. This is one of those, "Well, you could glue them, but I don't think they need it" things.
These are supposed to be an in between compromise to cf and nylon, flexible yet strong. I'll have to email Sullivan and ask them to make sure.

Patriot

Ok, I got an answer from Sullivan. Apparently these composite pushrods do not require any adhesive, as I suspected. They are basically a nylon rod with a little added cf to strengthen them and prevent expansion/contraction. However, they said if I really want to, I can add a little CA as it will bond to it and help a little, but is not required. Thanks.

Patriot