Oil in the spark plug hole..??!!

[Basri...]

I have never seen something like this, what can couse this ?

Middle one also started to wear out...

I did a "Magnilla Gorilla" job.. :)

Put heat resistance black silicone on the worn out spots of the valve cover and a thin layer silicone all arond the rubber gasket, closed the lid carefully.

800 miles since than, my spark plug hole still dry...

[rybes]

well done mate