mines doing exactly the same thing on HW97 could it also down to cold with those tiny grub screws, never had an issue with it on pcps or TX200
A good friend has made me a type on boss with 6 offset grub screws that will fitt ove the outer and inner part and bite down on both parts hopfully locking them together, then the end is turned down for the side wheel to fit on.
I will let you know how it works.
Edit - also the only grub on my outer part the thread is stripped.
Last edited by Akita; 15th February 2014 at 07:37 AM.