Steering Problems on 87 300td

[Seadawg33]

I have recently rebuilt the suspension of my 1987 300td. I am not a mechanic but through reading this board was able to accomplish the job including resealing the tandem pump, resealing the steering pump, and getting the self leveling system to work. When I finished I had a problem where the car felt bouncy. Not like the pods were bad but it bounced around more then it should. I finally diagnosed it as air in the hydraulic system. I was able to fix that by having my son and three of his friends bounce on the rear bumper of the car while I held the throttle to 2200 rpm. That bounce is now gone.

I have another problem that I can not diagnose. When I turn the car hard to the right the the steering kind of locks in place as if it has come hard against a stop and doesn't "bounce" back to the center. It doesn't take any force on the wheel to get the steering off of the "stop" but I know it is not right. I was careful to measure the pitman arm and have it back in the right place to on the steering pump. I am wondering if 1) the pitman arm may need to be adjusted in or out on the shaft of the steering pump or 2) when replacing the seals in the power steering pump could I have incorrectly aligned the gears inside the pump. The mark on the pitman arm does align with the mark on the power steering pump. Any help with this would be appreciated.

I took the car into the best independent mechanic that I know of (he goes to Germany on vacation and does research for Mercedes in their vaults) and he could not diagnose the hard "stop" on the steering.

Now that the air in the hydraulics is cleared up the car drives much better but I can now feel a different problem. When making a turn on a windy road and the road is flat the car feels fine. When there is a bump on the road during the turn the front end bounces a little and the car doesn't track correctly. I am not sure if this happens on both right and left turns or just on right turns. It is very subtle but unnerving.

Is there anyone who can help me with these problems?