Hi,
When standing still (and probably when driving as well), the servo steering make screeming noise when turning. The oil from the reservoar is full of air-bubble after driving, but "normal" when standing still for a while. Is there air trapped in the system? Any suggestion about what the problem is?

 

...Find out with the help from a friend, that the noise came from the pump itself. Is it OK, to just replace the gaskets (can get a gasket kit from "www.swedishcars.net") - or do I have to rebuild the complete pump? I need some answer please! -I can also replace the complete pump, but I need the money to other items on this beautiful car!