milodon gear drive issue

I was wondering if someone can post a picture of the cam gear. Especially the center which rides on the plastic button.Also the plastic button. Trying to figure out if my gear is snafued or need a new button. Appears someone ground on mine. May need to buy a used one if you got one laying around. Thanks. Birdtracker

They probably ground the button a) to clear the 3 bolts and b)for proper end play.