Greetings All! Now that I have some time, trying to get back to making progress. I'm finally getting ready to make a new heater/coolant tube...Question: the 1/2" nipple coming up from the top of the water pump, Is it originally a brass nipple with a compression fitting simply sweated on like I have here? It just seems like an area of weakness as mine came apart as seen in the pictures. I just don't want to do it twice...lol But if it's original that's what I'll do....