Toilet bowl effect

[DougK9]

Hi everybody! Newbie here. I've been enjoying my 120sr for two summers now with few problems. Tonight I crashed into a telephone pole, hard enough that it knocked off two rotor head links. After putting it back together, it now does that toilet bowl circling thing I've read about. It gets a little better as long as I'm giving it control input, but immediately returns to circling in a hover. This during absolute calm, but extreme heat and humidity. Any thoughts? Could it be the mugginess? Or do you suppose I damaged it?

[Pfloyd]

Rebuild the rotor head, You may have bent the feathering pin.

[DougK9]

Took it apart, here I shattered the main rotor shaft!

[Imzzaudae]

I have hit wires, Goal posts, a bird in flight, Cars, trees.
It happens lol.

[yakky]

Easy fix actually, just order one of these:

TBE Fixer Kit

[DougK9]

All good advice, thank you. I broke it AGAIN, and rebuilt the main shaft AGAIN! However, now it drifts to the left in a hover! Any ideas on where to start?

[DougK9]

Hi guys, I needed a little help. You all have been a huge help in the past. Recently I wrecked my 120sr, a pretty good damage-causing crash. I immediately started experiencing TBE and other flight issues. On your recommendations, I stripped it down, and lo and behold the main shaft was shattered and the anti vibration collar was bent. After a rebuild it flew spectacularly, until another crash! Another rebuild helped, but now it drifts left, even after maxing out the right trim and despite full right stick input! Any ideas? I readjusted everything, but it still persists. Please help!

[N3M0]

Try adjusting the links from the servos to the swash. Make sure the servos are centered and adjust the links until you get the swash as close to level as possible. Then trim it out a little to adjust if necessary.

[Pfloyd]

Level the swashplate.

[TowPilot]

Merged threads, please do not cross post.
Thanks in advance.

[mtwarych3@msn.com]

If you haven't replaced the frame on the 120, it may be time to do that.

The plastic frame can get weak and start causing all kinds of weird things to happen.

Good luck.

JW

[DougK9]

Turns out a minor adjustment of the servo pushrod was all it needed! Thanks everyone for your help. Much appreciated.