High spot on the clutch liner

[marked23]

It feels like there is a high spot on my clutch liner. When I installed it, it appeared to have a rough spot, and that might be it. I didn't attempt to fix it because I figured it would break-in anyway. Even so, it spun freely by hand before I installed everything.

It's certainly not grabbing hard, but when I rotate the main gear by hand, I can feel the resistance as the clutch bell spins around to the high spot.

Will this break-in with use? Or do I need drop the engine and rework the liner? Note that I haven't tried starting it yet... still building it.

-Mark

[Racer38]

I just replaced a clutch pack on mine and the pack had a new liner in the bell. It didnt spin very freely and I was concerned. I asked around and was told that it would break in, it could take as many as 20 flights for it to be as free as the old one. I've done a couple of mild hover tanks in the yard and its already freed up alot.

Craig

[ChrisS]

Hi Mark

This should wear in in short order. But if you want to check it look for two things. First: there should be .012" difference between the I.D of the bell and the O.D. of the clutch. Second: make sure that the gap between your fan hub and clutch driver is even all the way around. Any uneven-ness between the fan hub and driver will result in quick damper wear and extra force on the clutch assembly which can cause binding.

Chris