Ok this is probably an easy question for you guys, I just got a boat with power trim and tilt a mercruiser and I need to know what the difference between trim and tilt are they look like they do the same thing when pushed??? Alothough It seems that the tilt buttons only work now and then??? Also I have a gauge for the tilt and trim, and I need to know how to read it, and use it?? the gauge goes from tilt to trim with lines in between the tilt and trim. Does this just show where my tilt/trim is?? so like if it is in the middle does that mean my outdrive (prop) is basicly at no tilt/trim, just level with the bottom of the boat (straight)?? Also why does the gauge say tilt and trim on it and not up and down like the buttons do?? So is the tilt side on the gauge up or down etc... and I dont think the gauge works without the engine started so I can really get a good look at the outdrive?? Thank you guys, I am just trying to understand everything!