I've had my rocker cover gasket and half moon seal done twice in the last 8months. The last time being 2 weeks ago and it's still ****** leaking at the bottom of the half moon seal, the guys at the garage I use have done quite a bit of work for me and I trust them to do a good job! Is there anything that solves this problem easily? I have read a couple of threads ragarding the same thing but can't find the solution. He told me that he used sealant last time as well. Cars in for tomorrow morning but not quite sure what else they can do, other than reseal it and see if it leaks again PITA. Any ideas guys? Thanks.