Not Legit Enough, Quiting for Tonight

So I have the FX all back together and almost ready to fire. Engine oil was filled wed night, no leaks. I filled transaxle oil earlier in the evening, no leaks. So I torqued up the remaining fastners, hooked up the rest of the engine bits, tightened down the 3M Window Weld urethane gooped engine mount, and the final step before putting the battery back in was to fill coolant. Starts OK, but when I reach around 5 liters I hear dribbling water. Nuts! I double check the torque on the water fitting on back of head, perhaps a little loose.  The heck? It continues to leak at a good pace. Nuts! I start to take stuff off to get a better look. It’s not leaking from where I initiialy thought it was. I take the starter out and it looks like it’s probably where I hammered the pipe. I pull the pipe out and fill it with water in the sink, sure enough there’s a thin trickle of water from a pinhole where I hammered. Ugh! It’s 2:30AM, I quit for the night. So close. In retrospect I should have filled water early because now with the manifold on it’s more of a pain to work on that pipe. Deal with it tomorrow.