I just found a leak on the rear of the head at the gasket. It leaks coolant but only when its cold. Once its hot it stops. Is there anything I can do to get a little more time out of it? Will it cause any damage to wait if I keep a close watch on it? Also should I have the head gone through when I have it off? Should I get head studs, and does someone have a kit with studs and all the gaskets? Thanks for any advice (192,000 miles)