So looking for instruction do I just loosen the two screws on the sender and twist? Is there a video somewhere?
You should post exactly what you have for more exact instructions. Is it a Mercruiser? Alpha1? Gen1,2? Is it a bravo? And there are others.
I've done it on my alpha1 gen 2 Mercruiser, but it's been a while. I went by the Mercruiser repair manual. It was a specific procedure.
And yes, if it's similar to mine, it is done by loosening the two screws on the puck and rotating the puck.
There are two pucks, one on either side. One is for the trim gauge and the other is the trim limit. You should adjust both to make sure they are within specs, especially the trim limit. I think the trim limit is much more important. If you run your engine with the drive trimmed up too far, you could damage your u-joints due to the severe angle. That's why you should never run your engine while the drive is in the trailer (up all the way) position.
Someone will surely chime in and give you the exact procedure for both.
