I have to admit I was a bit grumpy when I replied, but I did say that I figured out how to use the gear. <_<;
When I was trying to figure out that, I flipped that gear at least three dozen times getting the water up and down.
Basically, I got up there and couldn't figure out for the life of me that there was a side passage after you re-lower the water where the Sun Stone falls into if you drag it to the left (The inability to zoom in on some of those internal maps is a pain, it makes it hard to see small passages).
Once I realised that passage was there, the rest was easy as pie. I didn't mean to sound like a jerk, I just tend to get...terse when people don't answer my specific question.