reverse it
Remove sheets from block. Removed block from boat. (This sounds easier than doing with pin inside of spring). With block removed, back out screw in center of block. Disassemble block and place cam cleats in desired position (facing up). Make sure holes are lined up correctly. Place center screw back in. Reattach block to cockpit floor. (the other hard part) Run sheets back through block. This was all written from memory, so it may not be exact. The important thing is that it can be done. You'll see when you get there.