I may have a coolant leak. Though, after seeing the picture below probably not.
A little background... I did my LIM and UIM gaskets back in November. I hadn't done quite that type of job before, but my brother and I are mechanically inclined (and my AF training plus being able to follow directions) so it went smoothly. That was about 4k miles ago.
Today I noticed a dark spot on the block just above the water pump. It looked just like the dark spot that I had running down the bell housing which prompted me to do my gaskets. Mind you, that spot has since gone away now that fresh coolant isn't feeding it. The only problem is I can't figure out where the coolant may be coming from this time. It's possible it could be coming out of where the head, block, and LIM meet on the passenger side of the forward head. Coolant elbow looks good and it isn't coming from the water pump.
So I went inside to look at pictures of the engine apart to get a better idea of what might be going on with it. Then I see the same spots that got my attention today, only six months ago... (in red)
They haven't changed, as far as I can tell. What bothers me is that the coolant mark on the bell housing dried up, but this is the same... Maybe dirt? I guess I'm just looking for opinions, but the spot is still there.
I'm even doubting it may be coolant. The coolant flows through the other end of the LIM, not the passenger end.