What did you do to your Vectra/Signum today?

[horaa]

pics:

[horaa]

Had to take the valve cover off because one corner was leaky. While i was there i rethreaded 3 holes just to be sure. So far so good, nothing is leaking.

[horaa]

And that's still leaking, replaced the gasket, same story. Now i am thinking of using rtv on top of the gasket but i am not sure that will fix it... the surface is not dinged or anything, maybe the valve cover is out of shape but i doubt.
Also found a "small" brake booster vacuum leak.
PS: a valve cover bolt has fallen into the engine bay, it's a gonner and of course it's out of production and i can't buy a new one nor junkyard

[JagRigger]

Finally sorted my ravaged and tatty knob out - too much handling over the years had taken its toll