Hows oil pushing out a gasket if it can just vent pressure through the oil breather, sealed? We use some 2 part set up stuff that sounds just like: your break seal and stroke 50 times (sounds like male chastity belt!) and then you take the plunger out and thread it into the end and use it as the ram. It is for potting buried telephone splices and it dries to an almost plastic consistancy. I put some on the scuffed toes of my boots and its still there.
