A friend I am helping build his PT-40 emailed me this message. And I need some input from RCU professionals:
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(Quote from him)
When mounting the torque Rods I was very careful not to get any epoxy on them so they moved very freely. When gluing the fiberglass cloth on the wing center some ca got into the torque rods now they are stiff I have been working them trying to free them but still a little stiff and squeak when turned how important is this?

I was thinking of putting some oil down the hole but don’t know if this will affect the bond or damage the wood, my other idea was I saw this stuff called ca debonder maybe that will help if I pour some in the slot but don’t know if it will weaken the epoxy bond.
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Let's hear advice from you professionals

Thank you

I've sat there moving them while watching TV to try to get them freed up

Same here. I even used acetone then moved them. Sometimes it worked and sometimes I had to open things up and replace my hinges or rods. I have never tried the debonder though. Acetone will effect the CA sometimes but those rods should be moving free or you are putting a strain on the servos and rods.

I have had good luck with adding a drop of acetone and working it in. Once the torque rod frees up, add a drop of oil and work that in

Acetone is the active ingredient in the debonders and a lot cheaper at the hardware store. It is also nasty stuff use gloves and in the open. Definately give it a try. I like to slop grease on the torque rod before construction, just about any kind of grease vaselene etc. for this reason then there will be no problem. If the rods are prebent then you can still work some in on both ends by sliding as far as it will allow.

I had that happen of a Sig 4* 40 that I built, and I took that as an opportunity to put two servos out on the wing.

Having a cigarette and watching TV I was working the torque rods and getting nowhere then I had an idea! Used my cigarette lighter to heat up the torque rods not red hot but to hot to touch and it worked!!! they move like new again.
Bill