Hi, this is my first post on this site! Looks like a great place and a wealth of knowledge. I've got a Cosworth YB N/A in my Westfield.

Got a slight leak on my Cosworth YB. Definitely from high up at the front so replaced the rocker cover gasket (Cometic) and new half moon seals off ebay like this http://www.ebay.co.uk/itm/COMETIC-CO...item4604945754

Also put some Loctite 5910 on the corners where the half moons touch the cam cover gasket.

Anyway, to cut a long story short it's still leaking and I can see a small stream of oil running down the front of engine. Anyone got any experience with the half moon seals from above link? Can leaking half moons still mean a dry looking rocker cover? as I can't see any obvious signs of the cover weeping now. Or is it more likely to be cam seals - it's got to be somewhere in the general area though. Any thoughts?

Cheers