I have a 1976 Mercury 1150 engine with power trim. The engine comes down with no problem, but when I want to bring the engine up, it doesn't at first. When I hit the up button, it just makes a click sound, as if something is stuck and needs to be unstuck. So I keep hitting the button over and over about 10 times, until the engine finally comes up. What could the problem be? Where would the "click" sound be coming from?? Sounds like it's coming from the little "box" where I have to add the hydrolic oil for the power trim. I dont know exactly what thats called. I dont know much about boats. PLEASE HELP!!