Hey guys got the canon motor off and have replaced it with a new I had. But before putting this back I rotated the canon assembly and it feels quite a bit of resistance to rotate and gummy. There appears to be this black gunk between the shaft and pivot point. Just wondering is there a way to seperate the two and clean it. Or should there resistance at this rotation point with the motor gearbox disconnected. I will wait for responses before reassembly see photos