I am attempting to modify the oil fill dipstick tube on my transmission. The instructions say to just use RTV when fitting these pieces together, but I’ve heard that brazing is a better method of connecting them. I have never brazed before without a special torch, but I figured if I was able to get the metal red hot with my handheld torch using map gas that I would be able to get things done. Am I just not getting things hot enough still? Thanks. #industry source