I emailed you a few months ago about a late 80's 743 that I was having steering problems with. The right side motor sometimes won't engage until I return to neutral and try again, and when it does engage it slams into gear. Once it is in gear I can feather the steering but when I go through neutral it may or may not go into gear again and when it does it bangs in, I can't feather it. You had thought it was adjustment so we tried that but it didn't help so we checked all the pressure relief valves. They all checked out fine but again no help. We had seen a thread on the forum about a screen in the middle hose going into the motor so we pulled all three lines but couldn't find a screen. Any suggestions on where to go from here?