Hey, I'm replacing the headgasket on my DOHC ZC and I need to take off the cams to get to the bolts holding the head to the block. Thing is, the arches that are labled E1-E6 and I1-I6 (exhaust and intake, respectively) which cover the cams (some people call them 'cam covers') just do not want to come out. I've taken both 10mm bolts out of each, and no matter how much I wiggle them around to work them out, they just don't want to come off. I've gotten 2 off so far, but that took me over an hour . Does anybody have an tips to get these things off?

Appreciated.