After going through the archives I am wondering if it is just the next weakest point in what seems to be a high crackcase pressure issue I have on this new engine.
Even with a PCV valve connected to the carb base (E-brock 1901 carb) I had seapage from underneath the 2 bolt heads for the vally pan and from valve cover breather caps before I installed baffled grommets. Then I blew out an oil pan gasket.
So I put a valve cover breather with a hose nipple on the passenger side and connected a hose to the air cleaner and put RTV around the valve cover grommets. Since then I have had no leaks up on top of the motor.
On the left valve cover I have a closed rubber "oil" plug. I may just put another baffled grommet in there with a breather.
2012 Mustang Boss 302 #1918, Competition Orange. FGF replacement 2006 Mustang V6 Pony, Vista Blue. Factory ordered. 2019 BMW X3 (Titled to the wife, but I'm always driving it for her. So I'm claiming it) Old projects, gone but not forgotten: 1967 FB 400, original CA car. After 22 years of work, trashed by the guy who was supposed to paint it. I had to sell it. 1980 Turbo Trans Am 1970 Mustang fastback, 351C 4Bbl, auto 1988 Mustang GT, 5 speed 1983 F-150 4x4, built 302 1994 Chevy K2500 HD 4x4, 454 TBI
