ended up with a rusty lyman mod. 61 furnace. tore everything apart, removed rust, re-blued and re-painted with high heat paint. i want to remove the spout so that i can lap it with the plug that stops the flow. i want to do this in the lathe so that everything is straight. that way i can get a good seal (it may already be a good seal, but i do not know that) how does the spout come out?? i think that it may be best to leave it alone. but in case i want to try , how?? i know that i can lap it without removing it. but, i have this problem; i like to take things apart. any advise?