my bravo drive is developing some play. you can't tell when you are driving but when parked, you can move the outdrive side to side about an inch or maybe 1 1/2". it didn't have any play when I bought it. looking inside, the play is coming from movement of the tube that the cable goes thru. where the cable nut goes onto the tube. the tube itself is movong in and out a little. there doesn't seem to ne any play in the tiller arm. this is the power steering valve assembly. do I need to replace it or what? is there a way to tighten the tube in the assembly?