Advice please: I have a 270 with a single 350 mag. I have tilt trim fluid in my bilge. The trim reservoir is empty. The cap is cracked but no signs of fluid near the reservoir or pump. The hydraulic lines appear to be good but the disappear under the engine. Is it possible to blow a hydraulic line running in low water? I always had outboards this in my first I/O. I did run in low water.