I have a coolant hose on my truck that leaks a bit and it runs down by the cylinder head area. Is it the heat that turns the coolant that into a white crusty color? Guess I need to take a tooth brush or something and brush it off. It has a stainless clamp that needs to be tightened periodically. It seemed pretty tight the last time I checked and I'm worried I'm going to crack the stand pipe that it's connected to if I tighten the clamp anymore. This goes into the cylinder head.