Spark plug removal

[spetz]

Where do you mean bottom Bennoz? From where the o-ring seals on the tube?
I meant though at the lower end of the tube, is there any chance they leak where the spark plug is?

[payaya]

He is stating the oil seeps into the wells from the bottom of the plug seal. No they cannot leak from the base of the well. I thought sockets with rubber attachments to hold the plug was common?