My Posts: All Forum Topic
Mine was a bit roughed up on the outer edges - all six bearings had broken up . That wasn't a big issue , it cleaned up no problem , I just spun it up in a lathe and polished it with a piece of emery cloth . What bothered me more was that after bolting it back together , I spun the mainshaft/headblock/flybar carrier in the lathe , and the runout was bad .
Specifically i'm interested to know how the flybar cage holds up in a crash. Does that item need to be replaced after each crash?
So I then just spun the flybar cage in the lathe and it's fine , it's all down to the fit of the cage to the headblock . Just by undoing the bolts and rotating the cage through 180 degrees relative to the headblock and tightening it up again produced visible changes in the runout.
There is a lot of movement between the fit of the parts , if you tighten it up and it's out of true , you are in for some vibration . So I've now used a lathe centre to correctly position the assembly before tightening it all up , I've used some three hour epoxy to fill the 'free play' .
At the end of the day , it gets dark .