Hi,
The video gives you a step by step tutorial for removing and reinstalling the steering gear at your Porsche 944 with power steering including the necessary bleeding of the system.
http://www.youtube.com/watch?v=DJe9Idglnu4
The video has a German soundtrack, but English subtitles are available at YouTube. If you don't see them by default, watch the video directly at YouTube and press the subtitle button below the frame.
Enjoy it,
Jürgen