i have a 72 aristocraft 9-teen 120. the trim cylinders come out one at a time. the boat has been sittin for 18teen years under a tree. the cylinder laggin behind was missing one of the lines who knows how long it was off. pump seems to work fine,but i dont know this is my first real boat.trim rams have the four lines close to transom. i bleed them but must be missing somthing??? thanks for reading any ideas would be great