Anyone here ever replace their water outlet housing on their gsr? If so, did you have to use a sealent when putting back on the water outlet housing? I check with Acura and they said it doesn't require a gasket....but feeling around the area. I can feel a type of sealent...not sure though. So I was just wondering did anyone here ever replace there water outlet housing and if so, did you use a sealent when putting it back or is it not necessary?