PVC valve is bad
Remove the oil breather cap on one of the valve covers and pour the oil through the hole in the valve cover.
It's on the front valve cover. The trick is you have to first remove the "breather chamber" by removing the 2 bolts on top. With the breather chamber cover off, you'll see the PCV valve screwed into the valve cover.
5.0L-The valve is located on top of the block by the firewall 2.3L-The valve is mounted inline with the breather hose
on top of the valve cover
You are probaby referring to the grommet, a rubber ring, that fits in a hole in the valve cover, sealing off the PCV valve or the breather hose.
Remove the sparkplug cables, breather hose, and remove the valve cover. The gasket is a permanent type and comes as a 5 piece kit that simply pushes into groves in the valve cover. Once installed, replace the valve cover and connect the breather hoses and sparkplug cables.
There will be a removable cap, or breather on the valve cover.
breather pipes.
Should be a cap or breather on the valve cover. In through there.
The engine should have a crankcase breather tube connected between the valve cover and the air cleaner. With the crankcase breather removed and a non-vented cap installed on the valve cover in its place, the PCV would create the vacuum you have.
To remove the oil breather cap on a 1965 Mustang, first ensure the engine is cool. Gently twist the cap counterclockwise to unscrew it from the valve cover. If it's stuck, you may need to wiggle it slightly while turning to help loosen it. Once removed, clean the area before replacing or inspecting the cap.
There should be a cap on the drivers side valve cover. If not, remove the breather tube and use a funnel at the passenger side valve cover.