Completed the LS/VTEC swap, now just one issue. The cam seals are leaking right behind the cam gears. Is is possible to take off the cam gears and change the seals WITHOUT pulling anything more than the valve cover and cam retainers? Can I do it without having it perfectly lined up in TDC? How do I hold the cams in place so they don't spin while I loosen the gear bolts? Should I use RTV sealant anywhere in the area? Thanks to any helpful tips.