Water is a normal byproduct of combustion. Perhaps the change in timing has something to do with it. If you are loosing coolant from the engine, then that is the source. Other wise, i would suspect it is normal. Any changes in Humidiity in your area? Temp change?
I have seen cars pour water out the tailpipe that didnt have any engine leaks, it was buiild up in the muffllers from short trips. The engine never got hot enough to vaporize the water buiild up in the muffler.