Hacker Turnado slop

[B.Ewing]

Hey guys, i have a question for anyone running a hacker 470kv.  Can you tell me if there is more than 1 shim between your c-clip and front of motor housing?  i noticed a strange sound during my maiden flight.  i found that my motor has some vertical slop in it, the two halves of the motor will move a few mm up and down.  i included some pics to highlight was i see.  my plan is to find another shim for under the c-clip to tighten it up.  What do you guys think?

[Jean-Luc Bolduc]

It's possible the can setscrew is not tight enough, allowing it to move out a bit, creating the slop. Check it and make sure it's Loctited and well torqued. You can press the shaft back in a tiny amount to remove the slop, then tighten setscrew-s.

[B.Ewing]

Ah.  you were right, i am shocked at how loose the set screws were!  the shaft had in fact moved a small amount away from the can.  I should have picked up on that from the beginning.  Thanks for your reply!