Water coming out of bottom of expansion tank

[Dave C]

My guess is a crack in bottom of tank, maybe at the outlet.  Remove the tank
and inspect ... wiggle and flex the outlet, etc.
Dave C


 when I got home the water started coming out of the
bottom of the expansion tank. After it cooled off I removed the expansion
tank.
The tank had about 1/4 of an inch of water in it. The Radiator was full to
the top of the hose that goes to the bottom of the expansion tank. I am
running
straight water and I know that is not helping. What is causing the water to
come out?