Yeah big opening, but I just went out and pulled it to find PO didn't wire wrap the packing so one whole section was gone top to bottom, I rewrapped it with new packing and wired it tight, a little softer note now, it seems I spend most of my time fixing PO mods,,,, one more question, I'm a new Max owner and have a lot to learn, is it common for the clutch side to have a rattle sound at idle? motor pulls strong with no slipping, I just hear that internal rattle going on, Thanks.