So I've had an odyssey with my cooling system...long story short, I've had to take the big aluminum piece that the thermostat housing bolts into off numerous times. There's a metal pipe with an o-ring gasket on it that slides into this big aluminum piece. I have coolant leaking from there because the o-ring gasket is slightly chewed up...and also I bent the pipe slighty. Should I get a new pipe too?

Hold on for pics...